ES2957760T3 - Rotating device for hydrants - Google Patents

Abstract

A rotating device for a hydrant manifold of at least 6 inches for industrial fire extinguishing, comprising a first fitting structured to be fixedly attached, directly or indirectly, to an inlet valve of the hydrant manifold or riser pipe, a rotating body (SW, FS) structured to seal, rotationally join, directly or indirectly, to the first fitting and providing a second fitting structured to be fixedly joined, directly or indirectly, to a hydrant manifold and a locking device (LR, LP) structured to fix a rotating union position between the rotating body and the first fitting. The first fitting and the rotating body provide a fluid conduit of at least 6 inches between the first connector and the second connector. (Automatic translation with Google Translate, no legal value)

Description

DESCRIPTION

Rotating device for hydrants

Related requests

This application is related to, and claims priority of, co-pending applications Serial Number 61/459,232 and Serial Number 61/464,628, filed on 12/9/2010 and 3/7/2011 respectively by the same inventors, and titled Swivel Hydrant Manifold for Industrial Fire Fighting and Swivel With or for Industrial Hydrant Manifold for Industrial Fire Fighting, respectively.

field of invention

The present invention relates to hydrant collectors for industrial fire extinguishers in plants and facilities, and in particular to a rotating hydrant collector. ("Collector", as used here, may include a single port.)

Background of the invention

Fireground logistics present issues that rank almost as high as equipment and personnel availability issues when faced with an industrial firefighting response.

Large fires require large volumes of water sometimes requiring multiple large diameter water supply hoses, 6 inches in diameter or larger. The most convenient, reliable and safest means of distributing large volumes of water throughout a facility is by constructing underground water supply systems with surface hydrant collectors. These hydrant manifolds are used in conjunction with large diameter water supply hoses to supply the necessary water to pumps, fire extinguisher nozzles and foam proportioning equipment.

In current practice, hydrant collectors are fixed as to the direction they face. Hose that must ultimately run in the opposite direction, therefore, must be placed in a large diameter circle to achieve a 180° turn in the direction of the water without sacrificing head pressure. A 12-inch (approximately 30 cm) diameter hose may require a length of 50 feet (approximately 1.5 meters) of twist ratio. The additional hose needed to change the direction of the water 180° can be several hundred feet or meters. Large diameter hose is expensive. The cost could be approximately $2,500 for a 12-inch (about 30 cm) hose. To solve this problem, hydrant collectors are sometimes placed on both sides of the road, facing opposite directions. However, a duplication of the iron equipment and head is then required.

The use of a pivot, with or for a hydrant manifold, can save the cost of providing manifolds on both sides of a road to have a manifold facing the correct direction, and/or can save the cost and expense of transporting and Install additional hose. As head size and therefore hose size and cost has increased dramatically in recent years, the industry is looking for ways to minimize cost and maintenance when it comes to fire extinguisher systems. fires.

Pivots capable of handling thousands of pounds or kilos of thrust associated with large fire extinguisher monitors have been available since the late 1980s, but only from limited suppliers. Williams believes they were the first to provide large-scale 6-inch (approximately 15 cm) pivots. and larger, for monitors. Williams has extensively tested monitor pivots at its facilities capable of performing after months and years of exposure to the elements, as well as capable of withstanding thousands of pounds of monitor thrust. Williams has extensive internal testing regarding the weather resistance and force handling properties of the pivots.

Although the industrial fire extinguisher industry has historically tolerated hose waste and hydrant duplication associated with fixed hydrant manifolds, with increased diameter requirements for supply pipes and hoses, the cost of waste has increased. The inventors consider this situation as a problem. With Williams' testing experience, the present inventors teach that a pivot suitable for use with, or for, a hydrant manifold can be provided to solve this problem.

The invention involves appreciating that the situation tolerated for a long time constitutes an unnecessary problem, a waste of hose and logistical complications associated with fixed hydrant collectors. The invention also involves knowledge of the testing of pivots, large diameter pivots, the tests of which indicate that a pivot can be provided for fixed hydrant collectors that meets the requirements of withstanding the necessary force and long-term weather.

The present invention, therefore, comprises a line of pivots for use with, or for, hydrant collectors, preferably with a built-in 360° rotation capability. The pivot is structured to be located below a manifold and typically above a valve associated with a water supply system, or a riser. Such a pivot, tested to withstand the required ranges of thrust and weather conditions, can allow first responders to position a hydrant in the most advantageous direction based on the location of the hazard, and preferably lock the pivot in place using a convenient lock. of pivot position on board. A swivel hydrant manifold saves the cost of providing manifolds facing different directions and/or providing one hundred or more additional feet or meters of hose required to redirect water without excessive pressure loss.

Design benefits for a pivot, with or for a hydrant collector:

• reduction in the total amount of hose required due to the elimination of the initial bend radius; • reduction in road blocking due to initial hose bends across tracks;

• pressure conservation due to the need for shorter hoses;

• suitable for highly congested areas (vertical design);

• suitable for a wide range of flow rates, up to 12000 gμm (approximately 2800 m3/h);

• built with an industrial fire extinguisher in mind;

• robust design using pivots capable of supporting several tons of lateral load;

• fully serviceable with integrated pivoting grease nipples;

• By delivering water more efficiently, pivoting hydrants can reduce the number of hydrant locations needed by up to 50% (depending on hydrant design and size).

Preferred design options include:

• various material designs and various entry and rise sizes (e.g. 4", 6", 8", 10", 12" (approximately 10, 15, 20, 25, 30 cm);

• various header designs (vertical stacking, traditional Tee or individual 90° outlet);

• various download options (NST, BSP, Storz, etc.);

• various discharge sizes (1-1/2" - 12" (approximately 2.5 - 1.2 - 30 cm);

• Integrated pivot lock to prevent movement after position;

• available with relief valves, check valves, caps or pressure gauges;

• available with integrated monitor stand;

• available with integrated automatic hydrant drain valve (under pivot);

• available with hydrant inlet valve (between hydrant pivot and header connection).

Size guide

• The following figures are based on a 24" (approximately 60 cm) underground header with 8' (approximately 20 cm) of standpipe extending to the base of the hydrant. Loss numbers are from the underground collector entry point to hydrant discharge (hose connection). Numbers will vary depending on outlet valve and connection type/size selected.

• Hydrant size recommendations made on a case-by-case basis.

• These recommendations are based on the hazards present and the water flow rate necessary for adequate protection.

• 6" (approximately 15 cm) rise/hydrant (approximate HP = 950)

o 1000 gμm - 1 psi loss (approximately 230 m3/h - 0.007N/mm2)

o 2000 gμm - 4.5 psi loss (approximately 460 m3/h - 0.03N/mm2)

or 3000 gμm - 10 psi loss < approximately 690 m3/h - 0.07N/mm2)

• 8" (approximately 20 cm) rise/hydrant (approximate HP = 730)

o 3000 gμm - 3 psi loss (approximately 690 m3/h - 0.021 N/mm2)

o 4000 gμm - 5.3 psi loss (approximately 920 m3/h - 0.04N/mm2)

or 6000 gμm - 12 psi loss < approximately 1380 m3/h - 0.08N/mm2)

• 10" (approximately 25 cm) rise/hydrant (approximate CV = 2670)

o 6000 gμm - 5 psi loss (approximately 1380 m3/h - 0.003N/mm2)

o 8000 gμm - 9 psi loss (approximately 1800 m3/h - 0.06N/mm2)

o 10,000 gμm - 14 psi loss (approximately 2,300 m3/h - 0.1N/mm2)

The present invention includes a pivot for use with existing hydrant manifolds, as well as for use with its own manifold. The Pivot for Existing Hydrant Manifolds offers an alternative for facilities that value the importance of having non-fixed hydrant collectors but already have fixed hydrant collectors in place. With a swivel conversion, a standard pivotless hydrant manifold can be converted to a pivot hydrant. For example, an end user can unscrew a standard pivotless hydrant manifold from the typical hydrant manifold inlet valve or riser, place a conversion pivot on top of the inlet valve or riser, and then attach the manifold. hydrant above the pivot. The conversion allows the existing hydrant manifold to pivot and lock in place using a positive locking mechanism.

A lower pivot fitting is preferably stationary and does not move with respect to the ground. An upper portion of the pivot, preferably with a locking element and an upper flange, preferably locks in the necessary direction and can rotate 360 degrees. Preferably, the upper portion of the pivot and the attached hydrant can be secured in a desired direction and secured, such as by locking them in place using engageable locking holes that register every 22.5 degrees (16 positions), for example.

Document US4793557A describes a firefighting monitoring apparatus. US2005145727 describes a segmented firefighting monitor. US2005184514 describes a pivoting adapter assembly.

Summary of the invention

The invention describes a pivot for use with or for a hydrant manifold for industrial fire extinguishers. The swivel with a hydrant manifold comprises a hydrant manifold and a swivel connected thereto, structured to connect to an industrial water supply piping system, including an inlet and a valve or riser. The pivot provides at least 6 inches (approximately 15 cm). flow passage and preferably includes male and female stainless steel sleeves, structured for relative rotation, having at least two rings of steel ball bearings between them, and including a inner water joint and preferably an outer waste joint. The manifold can be horizontal or vertical. The male and female stainless steel pivot sleeves are preferably structured for a welded connection to the hydrant manifold, on the one hand, and to a pipe or fitting likely to connect to an above-ground valve of an industrial pipeline water supply system. , on the other hand.

Preferably, the pivot includes grease fittings to lubricate the area between the sleeves and around the bearings, and the sleeves and bearings are preferably constructed of 316 stainless steel, and include a locking mechanism, such as a pair of locking flanges. More preferably, the pivot of the present invention incorporates flanges or flange portions on the male and female sleeves with mating holes so that a pin can be placed through the holes to lock the pivot in place.

The invention includes a rotating device for connecting to existing hydrant collectors. The rotating device comprises a male sleeve having a first fitting structured to be fixedly coupled to an inlet valve or riser pipe, the first fitting having a first flange to be fixedly coupled to an inlet valve or riser pipe. a hydrant manifold, and a female sleeve that functions as a rotating body structured to seal, rotatably attached, directly or indirectly, to the male sleeve by coupling the male sleeve and the female sleeve, the female sleeve providing a second fitting for be fixedly coupled, directly or indirectly, to a hydrant manifold, the second fitting includes a second flange to be fixedly coupled to a hydrant manifold. A locking device structured to fix a rotary coupling position between the female sleeve and the male sleeve. The male sleeve and the female sleeve preferably provide a fluid passage of at least 6 inches (approximately 15 cm) between the first fitting and the second fitting.

It should be clear that the swivel can be connected directly or indirectly between the hydrant collector and the industrial water supply piping system. Preferred embodiments show the pivot connected in a simple and direct manner.

Brief description of the drawings

A better understanding of the present invention can be obtained when considering the following detailed description of the preferred embodiments in conjunction with the following drawings, in which:

Figure 1A provides an isometric view of a preferred embodiment of a 6-inch (approximately 15 cm) pivoting hydrant manifold, the manifold providing two 5-inch or 6-inch (approximately 12 or 15 cm) Storz discharges and one two-pipe discharge. and a half inches.

Figure 1B provides a top view of the 6-inch (approximately 15 cm) rotating hydrant collector of Figure 1A.

Figure 1C provides a front view of the 6-inch (approximately 15 cm) rotating hydrant manifold of Figure 1A, which includes at the bottom a 6-inch (approximately 15 cm) customer-supplied water supply pipe. with flange (weld neck flange or socket weld flange required if a butterfly valve is used) and also indicating an inlet valve which can be supplied on request.

Figure 1D provides a side view of the 6-inch (approximately 15 cm) rotating hydrant collector of Figure 1a.

Figure 1E shows a detail of Figure 1D, which includes a 6-inch (approximately 15 cm) pivot, a pivot lock pin and a pivot lock ring, and wherein a fixing on the top of the pivot can rotate freely 360 degrees, and where the locking rings have holes every 22.5 degrees. Figure 2A shows an isometric view of a preferred embodiment of a multiple 8-inch (approximately 20 cm) pivoting hydrant of the present invention, including 5-inch or 6-inch (approximately 12 or 15 cm) Storz discharges.

Figure 2B shows a top view of the 8-inch (approximately 20 cm) rotating hydrant collector of Figure 2A.

Figure 2C shows a front view of the 8-inch (approximately 20 cm) rotating hydrant manifold of Figure 2A, including, at the bottom, an indication of an 8-inch (approximately 20 cm) water supply pipe. supplied by customer (weld neck or socket weld required if a butterfly valve is used) and indicating an inlet valve which can be supplied on request.

Figure 2D provides a side view of the 8 inch (approximately 20 cm) rotating hydrant collector of Figure 2A.

Figure 2E shows a detail of Figure 2D, indicating an 8-inch pivot, a pivot lock pin, and a pivot lock ring, and noting that a fixture located above would be free to rotate 360 degrees, and that the rings Locks have holes every 22.5 degrees.

Figure 3a shows an isometric view of a 12-inch (approximately 30 cm) rotary hydrant collector preferred embodiment of the present invention, which includes a single 12-inch (approximately 30 cm) Storz discharge.

Figure 3B provides a top view of the 12-inch (approximately 30 cm) rotating hydrant collector of Figure 3A.

Figure 3C provides a front view of the 12-inch (approximately 30 cm) rotating hydrant manifold of Figure 3A, which includes indicating, at the bottom, an 8-inch (approximately 20 cm) customer supply pipe. water (neck weld or socket weld required if a butterfly valve is used) and indicating an inlet valve which can be supplied on request. Figure 3D provides a side view of the 12-inch (approximately 30 cm) rotating hydrant collector of Figure 3A

Figure 3E shows a detail of Figure 3D, indicating a 12-inch (approximately 30 cm) pivot measurement with two pivoting locking rings and a pivoting locking pin and where a fixture located above would be free to rotate 360 degrees, and that lock rings preferably have holes every 22.5 degrees.

Figure 4A shows an isometric view of a typical tank farm, including an indication of the location for the inventive rotating hydrant manifold present, which would provide the advantages of reducing the hoses required by eliminating the initial radius of curvature (up to 100 feet, approximately 30 meters) per hose); reducing road blocking by directing hoses along the side of the road instead of occupying the radius of curvature of the roadway; providing a shorter hose path resulting in reduced friction loss; providing adequacy for highly congested areas through more effective discharge of water in the correct direction; providing standard models available for up to 10000 gμm (approximately 2300 m3/h) with higher flows possible, subject to engineering approval, and provided that by delivering water more effectively, the pivoting hydrant design can potentially save up to 50% of necessary hydrant locations throughout the facility. Figure 4B illustrates how the rotating hydrant collector of the present invention pivots to send water directly toward one of multiple hazards.

Figure 4C provides an enlarged detailed view of Figure 4A.

Figures 4D and 4E illustrate that, while typical hydrant designs face an adjacent road and often require the fire hose to immediately make a large bend radius to send water in the necessary direction, the invention of the present pivot hydrant allows a first responder to point a hydrant in the direction needed, to minimize road occupancy and the total length of hose required.

Figure 5A provides a side view of a preferred embodiment of a 10 inch diameter (approximately 25 cm) 360 stainless steel pivot joint.

Figure 5B provides a cross-sectional view of the embodiment of Figure 5A, and includes the indication that castings are preferred lost wax cast from 360 stainless steel, annealed and stress relieved.

Figure 6A shows an isometric view of a preferred embodiment of an 8-inch (approximately 20 cm) pivoting hydrant conversion kit.

Figure 6B provides a detail of Figure 6A, including an illustration of a fixed pivot lock member and a pivot lock member and a pivot lock pin (pin chains not shown).

Figure 6C provides a side view of the 8-inch (approximately 20 cm) pivoting hydrant conversion kit from Figure 6A

Figure 6D provides a front view of the 8-inch (approximately 20 cm) pivoting hydrant conversion kit in Figure 6D

Figure 6E provides a top view of the 8-inch (approximately 20 cm) pivoting hydrant conversion kit in Figure 6A

Figure 7 provides a cutaway view of an 8-inch (approximately 20 cm) hydrant pivot conversion kit, with ball bearings and gasket not shown inside the pivot.

Figure 8 provides a portion of a cutaway view of an 8-inch (approximately 20 cm) pivoting hydrant conversion kit, with ball bearings and gasket not shown within the pivot, and where two circular grooves represent the grooves. of ball bearings, and illustrating the pivot components in greater detail.

The illustrations are mainly illustrative. It would be understood that the structure may have been simplified and details omitted to convey certain aspects of the invention. Scale can be sacrificed for the sake of clarity.

Detailed description of preferred modalities

As illustrated in Figures 1-8, a preferred embodiment of the pivot for the present invention incorporates 316 stainless steel FS and MS sleeves and SB ball bearings. Stainless steel sleeves are preferably heat treated and recognized. In a preferred embodiment, races RSSB are milled for at least two ball bearing rings SB, half in a female sleeve FS and half in a male sleeve MS, with a port P provided in the female sleeve for inserting the ball bearings. SB balls. At least one grease fitting GF is preferably provided to keep the area between the male MS and the female sleeve FS and around the ball bearings SB adequately lubricated.

An external waste gasket location DSL is preferably provided, for a waste gasket such as an O-ring, located in a suitable notch between the male and female sleeves. In preferred embodiments, a simple O-ring has been shown to prevent debris from entering the area between the male and female sleeve from the outside. An ISL inner seal is preferably provided. An IS inner seal of more complex design, preferably made of PFTE or Teflon, is preferably provided in an inner seal location as a water seal for the space between the sleeves and containing the ball bearings. Preferably, the internal water seal IS is positioned at the shoulders at the ISL location between the male and female sleeves so that water pressure drives the seal toward greater sealing contact between the two sleeves.

In preferred embodiments a drain is provided in a fitting below the pivot so that when an upstream valve shuts off the water supply to the pivot and hydrant, water can drain from the manifold and pivot to the outside.

Preferably, lubricant is provided through at least one GF grease fitting, with maintenance preferably on a schedule of every six months to a year. A lubricant is selected to maintain its viscosity and composition over the range of anticipated environmental and hazard temperature changes.

Figures 1A-E illustrate a preferred embodiment of a 6-inch vertical rotating hydrant collector. The manifold of Figure 1A is composed of a vertical manifold VM welded to a pivot SW. The male sleeve MS of the swivel SW is indicated to have a lock ring LR welded on. The pivoting female sleeve FS, in turn, is welded to a fitting FT which has a corresponding locking ring LR. An LP locking pin is indicated between the two rings to lock the pivot in one location. The female sleeve fitting, in turn, is structured to optionally mate with an underlying IV valve or other similar structure, typically present in many applications, typically a butterfly or disc valve. The valve, in turn, is coupled to the outlet flange of a riser or similar pipe that is part of the industrial water supply system.

Figures 1B, 1C and 1D offer a top view, a front view and a side view, respectively, of the preferred embodiment of Figures 1A. Figure 1E provides a more detailed view of the preferred embodiment of Figure 1A, showing the locking rings LR and the locking pin LP, the male sleeve MS and the female sleeve FS, while focusing on the pivoting portion SW.

Figure 2A-2E presents an MH horizontal manifold on an 8-inch (approximately 20 cm) pivoting hydrant. Again an IV valve is indicated at the top of a rising flange. An FT fitting is placed between the valve and the swivel SW and serves to carry one of the two locking flange rings of the LR pivot. The pivot between the fitting and the manifold also carries an LR locking flange ring. It should be mentioned that many other means could be devised for locking the pivot, including a female sleeve port with a screw tightening through it against the male sleeve.

Figures 2B, 2C and 2D provide a top view, a front view and a side view respectively, of the 8-inch (approximately 20 cm) multiple pivot of Figure 1A. Figure 2E provides a view of the pivot portion in greater detail for the 8-inch (approximately 20 cm) pivot of the hydrant manifold.

Figures 3A-3E provide views of a 12-inch (approximately 30 cm) rotating hydrant collector. Again, an IV valve opens the flow of water to the swivel and hydrant manifold, which has a single 12-inch (approximately 30 cm) port.

Figures 3B, 3C, and 3D provide top, front, and side views of the 12-inch (approximately 30 cm) rotating hydrant collector Figure 3A.

Figures 4A-4E provide a general view drawing of the preferred arrangement of a tank farm incorporating the present hydrant invention. The tank farm layout is shown served by an SHM rotary hydrant collector. Figures 4A-4E illustrate the manifold pivoted in a variety of useful directions with respect to the tank farm.

Figures 5A and 5B provide a side view and a sectional view of a preferred embodiment of a pivoting SW portion of the present invention. An inner male sleeve MS and an outer female sleeve FS are shown for this 10 inch (approximately 25 cm) pipe arrangement, with three races RSSB for stainless steel ball bearing rings indicated. In the preferred embodiment, the RSSB races for the SB stainless steel ball bearings are milled on the outside of the male sleeve and on the inside of the female sleeve. The top of the female hose and the bottom of the male hose are designed for a welded connection to a hydrant manifold and upstream fittings.

A location is indicated for a custom ISL water seal, preferably with an elgiloy spring. A GPV grease pressure vent is indicated. One or more standard grease fittings are not shown, but would be included.

As mentioned, sleeve castings are preferably manufactured from 316 stainless steel and undergo an annealing and stress relief process. P ports are indicated on the female sleeve through which the ball bearings are loaded. Preferably, a water seal is specifically designed for your ISL chamber in order to seal tightly against water leaks under the pressure of water through the pivot. A PTFE or Teflon gasket is preferred.

As discussed above and illustrated in Figures 6, 7 and 8, a preferred swivel SW is shown incorporated in a “conversion kit”, for use with or for a hydrant manifold, preferably incorporating 316 stainless steel sleeves, preferably with male MS and female FS sleeves that are rotatably coupled with SB ball bearings between the sleeves. Stainless steel sleeves are preferably heat treated and recognized. In a preferred embodiment, RSSB races are milled for at least two ball bearing rings, half in a female sleeve FS and half in a male sleeve MS, with a port P provided in the female sleeve for inserting the ball bearings. . At least one GF grease fitting is preferably provided to keep the area between the male and female sleeve and around the ball bearings adequately lubricated.

An external waste seal DS, such as an O-ring, located in a suitable groove DSL between the male and female sleeve is also preferably provided. A simple O-ring can prevent debris from entering the area between the male and female sleeves from the outside. A more complexly designed inner gasket, preferably of PFTE or Teflon, is preferably provided at an ISL inner seal location as a water seal for the space between the sleeves containing the ball bearings. Preferably, the internal water seal is positioned at the shoulders between the male and female sleeves so that the water pressure drives the seal toward greater sealing contact between the two sleeves.

In preferred embodiments a drain is provided so that when an upstream valve shuts off the water supply to the pivot and hydrant, water can drain from the manifold and pivot to the outside.

Preferably, lubricant is provided through at least one GF grease fitting, with maintenance preferably on a schedule of every six months to a year. A lubricant is selected to maintain its viscosity and composition over the range of anticipated environmental and hazard temperature changes.

Figures 6A-6E, 7 and 8 in particular provide a view of a preferred embodiment of an SW pivot as a conversion kit for use with a hydrant manifold. An inner male sleeve MS and an outer female sleeve FS are shown for an 8-inch version, with two RSSB races with locations indicated for stainless steel ball bearings. In the preferred embodiment, the races for the RSSB stainless steel ball bearings are milled on the outside of the male sleeve and on the inside of the female sleeve. The top of the female hose and the bottom of the male hose are designed for a welded connection, directly or indirectly, to a hydrant manifold on one side and to upstream fittings on the other hand. An additional location is indicated for a custom ISL water seal, preferably with an elgiloy spring. A GF grease fitting is indicated. As preferably indicated, the sleeves are preferably manufactured from 316 stainless steel and undergo an annealing and stress relief process. Indicated are the P ports in the female sleeve through which the ball bearings are loaded. Preferably, a water seal is specifically designed for your ISL chamber in order to seal tightly against water leaks under the pressure of water through the pivot. A PTFE or Teflon gasket is preferred.

As indicated in Figure 7, the female sleeve FS functions as a rotating body structured to be sealed and rotatably attached to the male sleeve MS, which includes (by welding) a fitting FT for attachment to an inlet valve, upload or other similar device. An annular locking ring FLR and a pivoting locking ring portion LR are provided, with mutually registering holes, preferably so that a pin PN can lock a position between the two locking rings and sleeves.

Figure 8 illustrates how a PN pin can lock the position between the two locking rings. Figure 8 further illustrates the position of the RSSB race rings for receiving ball bearings through the P ports. The RSSB race rings are milled on the inside of the female sleeve and on the outside of the male sleeve to register between Yeah. A location is indicated for an ISL joint between the male sleeve and the female sleeve, the joint functions to provide a sealed rotary coupling between the male sleeve and the female sleeve.

The foregoing description of preferred embodiments of the invention is presented for illustrative and descriptive purposes, and is not intended to be exhaustive or to limit the invention to the precise form or embodiment disclosed. The description was selected to best explain the principles of the invention and its practical application, in order to allow other experts in the field to best use the invention in various modalities. Various modifications are contemplated that are most appropriate for particular use. The scope of the invention is intended to be defined by the claims set forth below. The invention is claimed using terminology that depends on a historical presumption that mention of a single element covers one or more, and mention of two elements covers two or more, and so on. Furthermore, the drawings and illustrations presented here have not necessarily been made to scale.

Claims (8)

1. A rotating device for a hydrant manifold (VM, HM) of at least 6 inches (approximately 15 cm) for industrial firefighting, comprising: a male sleeve (MM) having a first fitting (RF) structured to be fixedly coupled, directly or indirectly, to an inlet valve or riser pipe of a hydrant manifold (VM, HM), the first fitting (RF ) has a first flange to be fixedly coupled to an inlet valve or riser pipe of a hydrant collector (VM, HM); a female sleeve (MH) that functions as a rotating body structured to seal, rotatably engage, directly or indirectly, the male sleeve (MM) by engaging the male sleeve (MM) and the female sleeve (MH), the sleeve female (MH) provides a second fitting structured to be fixedly coupled, directly or indirectly, to a hydrant manifold (VM, HM), wherein the second fitting includes a second flange to be fixedly coupled to a hydrant manifold ( VM, HM); and a locking device structured to fix a rotary engagement position between the female sleeve (MH) and the male sleeve (MM); wherein the male sleeve (MM) and the female sleeve (MH) provide a fluid passage of at least 6 inches (approximately 15 cm) between the first fitting (R<f>) and the second fitting. 2. The device of claim 1, wherein the locking device includes a locking portion (LR) on the female sleeve (FS) and a locking flange (LR) on the male sleeve (MS), the locking portion (LR) and locking flange (LR) provide holes for insertion of a pin (LP). 3. The device of claim 1, wherein the male and female sleeves (MS, FS) include stainless steel. 4. The device of claim 1 including at least two stainless steel ball bearing rings (SB) located between the male and female sleeves (MS, FS). 5. The device of claim 4 including a grease fitting (GF) for communicating lubricant between the sleeves (MS, FS) and around the ball bearings (SB). 6. The device of claim 4, wherein each of the at least two stainless steel ball bearing rings (SB) are located in part in a race (RSSB) in the male sleeve (MS). 7. The device of claim 4, wherein each of the at least two stainless steel ball bearing rings (SB) are located in part in a race ring (RSSB) formed in the male sleeve (MS) and a race (RSSB) formed in the female sleeve (FS), the race (RSSB) and the ball bearing assemblies (SB) structured in combination to provide a fixation between the sleeves (MS, FS). 8. The device of claim 1, wherein the mating surfaces of the male and female sleeve (MS, FS) have virtually no protuberance.