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Cryogenic Gate Valve

Cryogenic Gate Valve

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Detail Introduction

1.Gasket of Cover Flange
Carbon steel or stainless steel + flexible graphite combined gasket is used for Class 150 qate valve: Stainless steel + flexible graphite wounded gasket is used for Class 300 gate valve; Stainless steel + flexible graphite wounded gasket is used for Class 600 gate valve and ring joint gasket is also optional for Class 600 gate valve; Ring Joint gasket is used for Class 900 gate valve; Pressurized seall design is used for Class 1500-Class 2500 gate valve.

2.Actuation
Hand wheel or gear box is usually used for gate valve actuation. Chain wheel and electric actuator can be also used for gate valve actuation if being requested by the customers.

3.Packing Seal
Molded flexible araphite is used for packing material. PTFE or combined packing material can be also used if being requested by the customer. The internal surface of the stuffing box, of which area is contacted with the packing, is of excellent finish (Ra 3.2 um). The stem surface, contacting with the packing, should be rolled and pressed after being precisely machined, so as to reach to the high finish and compactness (Ra 0.8 um) and ensure the reliable tightness of the stem area.

4.Belleville Spring Loaded Packing Impacting System
If being requested by the customer, the Belleville spring loaded packing impacting system can be adopted for enhancing the durability and reliability of the packing seal.
WARM PROMPT:“Cryogenic Gate Valve”All text, data and pictures are for reference only.
If you need to match with the physical performance parameters, structural size parameters and other details, please call us to obtain.
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