Hydraulic Slow Closing Butterfly Check Valve With Counter Weight

Hydraulic slow closing butterfly check valve with counter weight

The YFL Hydraulic slow closing butterfly check valve with counter weight is installed at the outlet of circulating water pump in thermal power plant to prevent the pump from damage by backflow of water and water hammer.

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Features
Specification

Features:

1. Slow closing by counter weight

2. Prevent backflow of circulating water

3. Protect pump and pipeline from water hammer

4. Act as shut-off valve and check valve

Ranges:

Size: DN150-DN5000

Pressure: PN6/PN10/PN16/PN25/PN40

When the valve size is under DN1000:

Adjustable open time:10-60S

Adjustable quick close time: 1.5-15S

Adjustable slow close time: 2.5-60S

Adjustable quick close angle: 75°±10°

Adjustable slow close angle: 15°±10°

When the valve size is above DN1000:

Adjustable open time:20-120S

Adjustable quick close time: 2.5-30S

Adjustable slow close time: 6-90S

Adjustable quick close angle: 75°±10°

Adjustable slow close angle: 15°±10°

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Steam Exhaust Quick Closing Check Valve
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Hydraulic slow closing butterfly check valve with accumulator

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