ZGVZHONGGONG VALVE GROUP

Valve type 05 / 7

Check valve manufacturer

ZGV is an industrial valve manufacturer for B2B project enquiries. Compare swing and lift check valves, forged steel constructions and bolted or pressure-seal covers. Check valves respond to pressure difference to limit reverse flow; their suitability depends on the flow and installation conditions.

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Check Valves

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Selection guide

Check valve manufacturer

ZGV is an industrial valve manufacturer for B2B project enquiries. Compare swing and lift check valves, forged steel constructions and bolted or pressure-seal covers. Check valves respond to pressure difference to limit reverse flow; their suitability depends on the flow and installation conditions.

Selection and installation

2553 is a bolted bonnet swing check valve; 2559 is forged steel with a swing disc, while 2561 uses a lift disc and flanged ends. 2558 has a pressure-seal cover and separate Class 900/1500/2500 tables. Supply installation direction, normal and minimum flow, pressure drop and transient conditions; do not assume every check valve prevents water hammer.

Compare catalogue entries

ProductSelection check
Bolted bonnet swing check valve Class 150 ↗2553A hinged disc distinguishes this swing check design from a lift check valve. Provide installation orientation, flow range and pressure drop for selection.
Pressure seal check valve Class 900/1500/2500 ↗2558Use the separate Class 900, 1500 and 2500 dimension tables. A pressure-seal cover is a construction detail, not a complete pressure-temperature or service approval.
Forged steel swing check valve Class 150/300/600 ↗2559A hinged disc distinguishes this swing check design from a lift check valve. Provide installation orientation, flow range and pressure drop for selection.
Forged-steel swing check valve Class 800 ↗2560Provide the flow direction, installation orientation, operating flow range and allowable pressure drop. Compare the stated swing, lift or disc construction before selecting a check valve.
Flanged forged steel lift check valve Class 150/300/600 ↗2561The lift check disc moves away from its seat rather than swinging on a hinge. Check the flanged connection, installation position and minimum operating flow.
300X slow closing check valve · PN 10/16/25 ↗2500Provide the flow direction, installation orientation, operating flow range and allowable pressure drop. Compare the stated swing, lift or disc construction before selecting a check valve.

Questions before requesting a quote

Which construction should I compare?

2553 is a bolted bonnet swing check valve; 2559 is forged steel with a swing disc, while 2561 uses a lift disc and flanged ends. 2558 has a pressure-seal cover and separate Class 900/1500/2500 tables. Supply installation direction, normal and minimum flow, pressure drop and transient conditions; do not assume every check valve prevents water hammer.

What information is needed for a quotation?

ZGV is an industrial valve manufacturer for B2B project enquiries. Send the product ID, quantity, fluid, size, operating and design pressure and temperature, body and seat materials, connection and actuation. Include project standards and inspection documents for confirmation.

Request the relevant drawing and configuration for the selected model. Catalogue references do not establish current certification or suitability for every application.

Project enquiries

Product confirmation
and quotation.

Send the medium, temperature, pressure, nominal size, materials, connection, actuation, required standards and quantity. Our sales team will respond with product confirmation and quotation support.

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