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Design construction:
ASME B16.34 - BS 5352
Testing according to API 598
Marking MSS SP25
Outside Screw and Yoke (OS&Y)
Self aligning two piece packing gland
Spiral-wound gasket
Integral backseat
Loose solid disc
Socket Weld Ends to ASME B16.11
Screw Ends (NPT) to ASME B1.20.1
Butt Welding Ends to ASME B16.25


Ratings:

    - carbon steel class 800
      1975 psig @ 100°F
      138 bar + 38°C

    - carbon steel class 1500
      3705 psig @ 100°F
      255 bar + 38°C

Unit of Measure

Size

N/A 1/2

Connection Type

N/A Threaded

Class

N/A 800

Weight

N/A 4.5 lb

Operating Temperature

N/A 100 ºF

Operating Pressure

N/A 1975 psi

Cv Coefficient

N/A 3.5

Body/Bonnet Bolt Torques

N/A 20 ft/lb

Inlet End Type

N/A Threaded

Inlet End Size

N/A 1/2

Outlet End Type

N/A Threaded

Outlet End Size

N/A 1/2

Material

N/A A 105, Trim F6/HF

Seat Material

N/A INTEGRAL HF

Stem Material

N/A ASMT A479 410

A

N/A 3.15 in

B

N/A 6.54 in

C

N/A 3.46 in

F

N/A 0.38 in

G

N/A 1.26 in