Watts RK 775/775DCDA-CK2 3-4 Check Valve

The Watts RK 775/775DCDA-CK2 3-4 is a genuine second check kit for 3" to 4" 775 / 775DCDA. It features a silicone seat.

This 3-4" second check detector valve replacement kit for series 775 and 775DCDA prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. This kit consists of a second check module, check module O-ring and a red silicone disc elastomer. It is designed for non-health hazard applications. It is used primarily on fire sprinkler lines when it is necessary to monitor unauthorized use of water.

Features

• Factory replacement kit
• No special tools required for changing parts
• All parts are made of high quality materials
• Second check kit

Common Questions

Will this kit fit my valve?

The RK 775/775DCDA-CK2 3-4 fits 3" and 4" sizes of Watts series 775 / 775DCDA. Kits are size- and series-specific, so match the model stamped on your valve body or cover before ordering.

What's included in this kit?

This is a second check kit. Kit consists of: a second check module, check module O-ring and a red silicone disc elastomer.

Are these genuine Watts parts?

Yes. This is the factory RK 775/775DCDA-CK2 3-4 kit built with genuine Watts OEM components. Aftermarket parts can void your assembly approval and are commonly rejected by inspectors at annual test time.

Which kit do I need if my relief valve failed the test?

Not this one — this kit services the check valve. A failed relief valve needs the RV (rubber parts) or VT (total relief valve) kit for 775 / 775DCDA in your size; a total repair (T) kit covers the relief valve and both checks.

Specifications

• Type: Check
• Seat / Seal Material: Silicone
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: RK 775/775DCDA-CK2 3-4
• Lead-Free: No
• Product Role: repair_kit
• Kit Type: Second Check Kit
• Fits Brand: Watts
• Fits Valve Series: 775;775DCDA
• Fits Valve Size: 3";4"
• Used With: 3" 775;3" 775DCDA;4" 775;4" 775DCDA
• Kit Contents: Kit consists of: a second check module, check module O-ring and a red silicone disc elastomer.
• Watts Ordering Code: 0888902
• Genuine OEM Parts: Yes