H47H-300

🌎 Brand: 上海高压阀门厂
Fire Safe Anti-Static

Specifications

Valve Type ID 9876b93f-de0f-4cfd-91ae-22ddfbd0b3f7
Size Range DN150-DN300
Pressure Rating PN4.0-PN20.0
Temperature Range 20°C to 250°C
Body Material plastic
Trim Material alloy steel
Seal Material metal seal
Stem Material duplex steel
End Connection welded
Standard ISO
Operation Method electro-hydraulic
Flow Coefficient (Cv) 1244.19
Leak Rate zero leakage
Applicable Media oil products
Applications oil products
Industry Tags petrochemical
Test Pressure 119
Design Pressure 20
Design Standard ISO
Design Temperature 250
Body Material Grade CF8M
Weight (kg) 819
Specifications compiled from manufacturer technical datasheets.

Engineer's Selection Guide: Ball Valves

Ball valves provide on/off isolation with a quarter-turn motion and very low pressure drop in the open position. Selection centers on bore (full vs. reduced), seat type (soft vs. metal), fire-safe/anti-static provisions for flammable service, and the end-connection standard. Confirm the pressure-temperature envelope and body/trim material against the process media before specifying.

Frequently Asked Questions

Q: What is a ball valve used for?

A: Ball valves are primarily used for on/off isolation of liquids and gases where a tight shutoff and low flow resistance are required. They are common in pipeline, process, and utility services.

Q: Which standards govern ball valves?

A: Commonly referenced standards include API 608 (steel ball valves), API 6D (pipeline valves), ISO 17292, and BS 5351. The applicable standard depends on service and project specification.

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

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