Vertical Check Valve

Vertical Check Valve

The valve of the Vertical Check Valve slides along the vertical centerline of the valve body. When the inlet end is under pressure, the valve is opened against the spring resistance. When the pressure at the inlet end is lower than the outlet end, the spring pushes the spool to the valve seat.

Product Details

STANDARDS:

Design:ANSI B16.34

Walk Thickness:ANSI B16.34

Pipe Thread: ANSI B1.20.1;BS21;DIN 2999/259; ISO 228/1; JIS B0203 ISO7/1.

Inspection & Testing: MSS SP-100;EN 12266;API 598; ISO 5208


Description:

The valve of the Vertical Check Valve slides along the vertical centerline of the valve body. When the inlet end is under pressure, the valve is opened against the spring resistance. When the pressure at the inlet end is lower than the outlet end, the spring pushes the spool to the valve seat. The valve is closed, preventing the medium from flowing backwards and acting as a check. If the vertical check valve is used for vertical installation, there is no spring, and the weight of the valve itself and the pressure of the fluid returning back can be used. The vertical check valve has the characteristics of simple structure, few parts and light weight.


Working principle:

The vertical check valve prevents the media from flowing backwards and acts as a medium check. The vertical check valve is open when the inlet end medium pressure is higher than the outlet end. Because of the pressure of the medium at the inlet end of the pipe, the valve in the vertical check valve is opened to open the valve automatically. When the inlet end medium pressure is lower than the outlet end, the spring pushes the flap to the valve seat to close the valve.

 

Specification:

1. Size

DN8-DN1000(1/4-30inch)

2. Material

CF3M, CF8, CF8M,WCB

3. Pressure

1000PSI

4. Connect end

Thread, Flange

5. Thread ends

ANSI B1.20.1(NPT),DIN 259/2999,ISO 228, BSP, BSPT

6. Seat

PTFE, PTFE+15%Glass, PTFE+25% Carbon, PPL

7. Body & Cap

Investing Casting

8. Test

API 598, 100% tested under water and gas

9. Certification

IOS 9001, CE Certification

10. Media

Water, Oil, Gas

11. Applicable temperature

-20~180℃(PRTFE)-20~250℃(PPL)

12.. Locking device

Optional

13. Stem

Blow-out proof stem

14. Port

Reduce port ball valve, Full bore ball valve

15. Inspection

Testing according to API-598

 

Parts Material List:

1

Body

ASTM A351 CF8M

ASTM A351 CF8

ASTM A216 WCB

2

Cap

ASTM A351 CF8M

ASTM A351 CF8

ASTM A216 WCB

3

Ball

ASTM A351 CF8M

ASTM A351 CF8

ASTM A216 WCB

4

Seat

PTFE, RTFE

PTFE, RTFE

PTFE, RTFE

5

Stem

ANSI 316

ANSI 304

ANSI 304

6

Thrust washert

PTFE

PTFE

PTFE

7

Packing

PTFE

PTFE

PTFE

8

Gland nut

ASNI 304

ASNI 304

ASNI 304

9

Handle

ASNI 430

ASNI 430

ASNI 430

10

Washer

ASNI 301

ASNI 301

ASNI 301

11

Nut

ANSI 304

ANSI 304

ANSI 304

 

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