Design Feature

• Sub-zero treatment

• Cryogenic sealed gas test

• Stem extended

• Erosion resistance

• Good sealing performance of zero leakage

• Low leakage packing 

• Drain board design

• Maintenance on line(top entry valve)

Design Standard

• Design: API 609 / ASME B16.34

• Face to face: ASME B16.10 / ISO5752-20 / ISO5752-13

• Flange end: ASME B16.5 / ASME B16.47

• Butt-welding end: ASME B16.25

• Test: normal atmospheric temperatureAPI598 / Ultra low temperature gas seal test

Technical Specification

• Size: 4”~48”

• Class: 150Lb~300Lb

• Connection: Double flange / Butt weld / Lug

• Operation: Worm Gear

• Temperature: -196°C to +160°C

• Application:  LNG / Air Seperation

Material Option

• Body: CF8M

• Disc: CF8M

• Stem: F316 / K500

• Seat: INCONEL

• Combined packing:PCTFE+black lead
  (All metal parts sub-zero treatment )

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