Mining & Mineral Processing, Chemical Plant, Oil & Gas, High Pressure Fluid, Steam & High Temperature Fluid, CNG & LNG, General Fluid.
TECHNICAL DATA
Design:
ASME B16.34
Size:
1/2" ~ 8"
Pressure Rating:
ASME Class 150 & 300
End Connections:
Flanged End
Testing:
API 598
Bore:
Reduced bore
Certificate:
API 607
FEATURES
• Superior valve design at a competitive price.
• Machined ISO actuator mounting pad.
• RPTFE seal relieves concern over product contamination.
• Fire test certified to API 607. Available on request.
• Lower operating torque for ease of operation and reduced actuator cost.
• Positive position indication.
• Blowout-proof shaft.
• NACE MR0175 available on request.
• Locking device is available.
• Anti-Static device.
• Manufactured under ISO 9001 certified quality system.
• Various seat material are available.
In addition to standard seat material, following variety is available. Each material option will meet a wide range of performance, suitable for many applications.
- PTFE + 15% Glass Fiber
- PTFE + 25% Carbon Fiber
- Modified PTFE
- Modified PTFE + 25% Carbon Fiber
- PTFE + 50% SS
- PEEK
- UHMWPE
* Please refer to the Pressure-Temperature rating.
551
ITEM
PART NAME
STAINLESS STEEL
CARBON STEEL
1
Body
A351-CF8M
A216-WCB
2
Seat Retainer
A351-CF8M
A216-WCB
3
Seat
PTFE+25%G.F.
PTFE+25%G.F.
4
Ball
A351-CF8M
A351-CF8M
5
Stem
SS 316
SS 316
6
Body Seal
GRAPHITE
GRAPHITE
7
Gasket
PTFE
PTFE
8
Packing
GRAPHITE
GRAPHITE
9
Stem Bearing
PTFE
PTFE
10
Gland Flange
A351-CF8
A351-CF8
11
Hex. Bolt
A193-B8
A193-B8
12
Gland Nut
SS 304
SS 304
13
Disc Spring
SS 304
SS 304
14
Stop Plate
SS 304
SS 304
15
Snap Ring
SS 420
SS 420
16
T-Block
A216-WCB
A216-WCB
17
Hex. Bolt
SS 304
SS 304
18
Pipe
STEEL+Zn
STEEL+Zn
19
Pipe Cover
VINYL
VINYL
20
Stop Screw
SS 304
SS 304
21
Stop Nut
SS 304
SS 304
22
Joint Gasket
PTFE
PTFE
23
Spring
SS 316
SS 316
24
Static Device
SS 316
SS 316
* We reserve the right to modify the design / specification without previous notice for better quality.
551 (Class 150)
553 (Class 300)
* We reserve the right to modify the design / specification without previous notice for better quality.
551 (Class 150)
553 (Class 300)
* We reserve the right to modify the design / specification without previous notice for better quality.
Remark:
1. It is recommended that the appropriate seat material, providing a higher pressure & temperature, is selected, if you feel the standard material is borderline and you prefer a larger safety allowance.
2. For steam service, options available are PEEK, PTFE+50%SS, or Metal seat, depending on the service application.
3. Final selection of seat material is the user's choice, experience & responsibility.
4. Solid Lines-Continous Temperature Dotted Lines-Intermittent / Peak Temperature
