Bolted Bonnet or Pressure Seal Bonnet
Outside Stem & Yoke
Flat disc or Conical disc
Low Emission Graphite Gland Packing

Optional Features:

Seal Welded Seats Across Full Range
Resilient Soft Seats for Positive Shut-off
Stop-Check or Screw Non-Return
Guided Disc for Use in Vertical Pipelines
Bonnet Extension for Cryogenic Service
By-Pass and Drain Connections
Indicator and Locking Devices
Extension Shaft for Remote Operation

Specification:
Basic Design: API-600, BS1873, ANSI B16.34
Pressure-temperature rating: ASME B16.34
Face to Face : ASME B16.10
End Connection: 2"-20" ASME B16.5; B.W end ASME B16.25
Test & Inspection: API-598
Size: 2"-20"
Class: 150LB-2500LB
Material: Cast Steel, Alloy Steel, Stainless Steel, ASME Std