Figure 87L

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The F87L is a resilient seated double flange rubber disc check valve for reliable reverse flow protection in sewage/water applications

Manufacturer: Emerson
Valve Type: Valves & Accessories
Sub-Type: Keystone Check Valves
Double flanged design.
The flap is totally encapsulated in NBR rubber for superior sealing and corrosion resistance.
The flap rises above the flowpath reducing wear and allows for a flushing action during operation.
All iron components are coated in fusion bond epoxy resin.
Top entry cover allows for easy access for cleaning and maintenance.
Full flow design for less head loss, less debris accumulation and easy maintenance.
Lower open pressure and excellent seal performance of low pressure.
Simple construction with the flap the only moving part.
45° seat angle reduces flap travel, minimising slamming and resultant pipe damaging water hammer.
Accessories including limit switches and backflow actuator.