JPH0274677U - - Google Patents
Info
- Publication number
- JPH0274677U JPH0274677U JP15551588U JP15551588U JPH0274677U JP H0274677 U JPH0274677 U JP H0274677U JP 15551588 U JP15551588 U JP 15551588U JP 15551588 U JP15551588 U JP 15551588U JP H0274677 U JPH0274677 U JP H0274677U
- Authority
- JP
- Japan
- Prior art keywords
- downstream side
- check valve
- pressure check
- head portion
- low pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Check Valves (AREA)
Description
第１図乃至第３図は本考案の一実施例を示し、
第１図は本考案に係る低圧用逆止弁を用いたレー
ザ回折式粒度分布測定装置の一例を示す構成図、
第２図は本考案に係る低圧用逆止弁の一例を示す
断面図、第３図は逆流防止状態にある低圧用逆止
弁を示す断面図である。第４図及び第５図は従来
技術を説明するための図で、第４図は従来のレー
ザ回折式粒度分布測定装置を示す構成図、第５図
は従来の低圧用逆止弁を示す断面図である。
３０……低圧用逆止弁、３１……弁ハウジング
、３９……弁体、４０……頭部、４１……凹入部
、４２……周壁、４３……開口、４４……胴部。
1 to 3 show an embodiment of the present invention,
FIG. 1 is a configuration diagram showing an example of a laser diffraction particle size distribution measuring device using a low pressure check valve according to the present invention;
FIG. 2 is a sectional view showing an example of the low pressure check valve according to the present invention, and FIG. 3 is a sectional view showing the low pressure check valve in a backflow prevention state. Figures 4 and 5 are diagrams for explaining the prior art. Figure 4 is a configuration diagram showing a conventional laser diffraction particle size distribution measuring device, and Figure 5 is a cross section showing a conventional low pressure check valve. It is a diagram. 30... Low pressure check valve, 31... Valve housing, 39... Valve body, 40... Head, 41... Recessed portion, 42... Peripheral wall, 43... Opening, 44... Body.
Claims (1)
末広がりに傾斜するテーパ面を有する頭部と、こ
の頭部に連なり、下流側に開放された凹入部を有
するとともに周壁に複数の開口を備えた胴部とか
らなる弁体を、移動自在に設けたことを特徴とす
る低圧用逆止弁。 Inside the valve housing, there is a head portion having a tapered surface that widens from the upstream side to the downstream side, and a body portion that is connected to the head portion, has a recessed portion that is open to the downstream side, and has a plurality of openings in the peripheral wall. A low-pressure check valve characterized by having a movable valve body comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15551588U JPH0274677U (en) | 1988-11-28 | 1988-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15551588U JPH0274677U (en) | 1988-11-28 | 1988-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0274677U true JPH0274677U (en) | 1990-06-07 |
Family
ID=31433211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15551588U Pending JPH0274677U (en) | 1988-11-28 | 1988-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0274677U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927370B2 (en) * | 1980-07-05 | 1984-07-05 | 新日本製鐵株式会社 | High strength cold rolled steel plate for press working |
-
1988
- 1988-11-28 JP JP15551588U patent/JPH0274677U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927370B2 (en) * | 1980-07-05 | 1984-07-05 | 新日本製鐵株式会社 | High strength cold rolled steel plate for press working |