Q44F-300

🌎 Brand: 上海明珠阀门制造有限公司

Specifications

Valve Type ID 953f1fd4-7896-4c87-b5b8-6f4dc4856f6d
Size Range DN400-DN4000
Pressure Rating PN16.0-PN64.0
Temperature Range 20°C to 800°C
Body Material fluorine-lined
Trim Material stainless steel
Seal Material metal seal
Stem Material duplex steel
End Connection threaded
Standard HG
Operation Method electro-hydraulic
Flow Coefficient (Cv) 243.91
Leak Rate ANSI Class V
Applicable Media cryogenic media
Applications cryogenic media
Industry Tags pharmaceutical
Test Pressure 47
Design Pressure 64
Design Standard HG
Design Temperature 800
Body Material Grade CF8
Weight (kg) 1219
Specifications compiled from manufacturer technical datasheets.

Engineer's Selection Guide: Gate Valves

Gate valves are linear-motion isolation valves offering a full, unobstructed bore when fully open, making them suitable for low-pressure-drop on/off service. They are not intended for throttling. Key selection factors are body/bonnet construction, stem type (rising vs. non-rising), wedge design, and pressure class per the applicable API/ASME standard.

Frequently Asked Questions

Q: What is a gate valve used for?

A: Gate valves are used for fully open or fully closed isolation where minimal flow restriction is desired. They are not recommended for continuous throttling.

Q: Which standards govern gate valves?

A: Common standards include API 600 (bolted bonnet steel), API 602 (compact steel), API 603 (corrosion-resistant), and API 6D for pipeline service.

Guidance reflects general engineering practice for gate valves; confirm against the project specification and applicable standards before procurement.

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