Check Valves Archives - Major Valves

UNI-FLO CAST IRON SWING CHECK VALVE FIG 401A

zunaid — Tue, 21 Apr 2026 06:16:56 +0000

Uni-Flo Swing Check Valves are especially suited for the prevention of reverse flow. Designed to BS5153, the valve allows for full flow and can be installed in the horizontal or vertical position. Flange dimensions conform to BS4504 PN10/16 – Can be supplied to suit BS10 Table D/E Face to Face dimensions conform to BS5153 Testing in accordance with BS6755 On request, the valve can be supplied with external lever and counter weight (L.W.) Pressure rating – 16 bar. More Info. (.pdf)

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UNI-FLO SINGLE DISK WAFER SWING CHECK VALVE FIG 302

zunaid — Tue, 21 Apr 2026 06:15:35 +0000

The Uni-Flo wafer swing check valve is an economical alternative to the traditional flanged swing check valve. The lightweight wafer type valve consists of a 304 stainless steel disc, and on reverse flow will have a positive shutoff owing to the resilient seat. Low Head Loss Pressure rating – 16 Bar Available in sizes 50mm – 600mm More Info. (.pdf)

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UNI-FLO BALL CHECK VALVE FIG BCV

zunaid — Tue, 21 Apr 2026 06:14:21 +0000

Uni-Flo Ball Check Valves are compact and mainly used to protect wastewater pumping stations. Mainly used on water, sewage water and viscous fluids, the ball check valve consists of a rubber encapsulated ball to back seal any reverse flow. Silent closing, no water hammer Good sealing Full bore flow, large flow Small resistance Loss or water head is 50% lower than swing check valves Installation: horizontal or vertical More Info. (.pdf)

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UNI-FLO THIN WAFER CHECK VALVE, PN16

zunaid — Tue, 21 Apr 2026 06:12:53 +0000

Thin Wafer Check Valves are compact and extremely lightweight and suitable for mounting between a wide range of flanges. Available in steel or 316 stainless steel the Thin Wafer Check has a Viton or EPDM seat for leak proof sealing. Design and manufacture: API 6D Face to face: API 6D Testing according to : API 598 Suitable temperature: NBR: -10~-80°C – EPDM: -10~-120°C – VITON: -10~-150°C Medium: Fresh water, sea water, waste water, food stuff, all kinds of oil, weak acid and alkaline liquid etc. More Info. (.pdf)

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UNI-FLO DOUBLE DOOR WAFER CHECK VALVE PN16 FIG 301

zunaid — Tue, 21 Apr 2026 06:11:44 +0000

The Uni-Flow Double Door Check Valve is a compact wafer design and is a popular choice when space is a major factor in valve selection and pipeline design. The compact design features a non-slam spring-assisted closing and is suitable for water, waste water, oil, weak acids and alkaline liquids etc. Tight closure is obtained by utilising a soft seat in either EPDM or NBR. Available in sizes 50mm – 600mm Cast Iron body with either 304 stainless steel or ductile iron chrome plated disc. More Info. (.pdf)

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