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White PVC inline spring check valve with slip connections

Dayton

Dayton 4RG75 2 in Slip PVC Spring Check Valve Trap

SKU CH-4ZPK-1WZAA MPN 4RG75

A 2-inch slip PVC spring check valve that prevents backflow in drain lines up to 120 degrees F

  • TypeDrain Components
  • Prevents backflow with inline spring mechanism
  • PVC body resists corrosion in general-purpose applications
  • Stainless-steel spring ensures reliable valve operation
  • Slip connections simplify 2-inch pipe installation
  • Rated for temperatures up to 120 Degrees F

2-Inch Slip PVC Spring Check Valve

This Dayton 4RG75 check valve fits 2-inch slip connections in PVC piping systems. It uses an inline spring mechanism to allow flow in one direction while preventing backflow. The body is constructed from PVC for corrosion resistance in general-purpose drainage applications. The stainless steel spring provides reliable return force across repeated cycles.

Sustained-Flow Behaviour

Under continuous flow the spring remains compressed and the valve stays open without chatter or hammer. The inline design keeps the flow path straight, so pressure drop remains consistent over long runs. The stainless steel spring resists fatigue during extended duty cycles. PVC construction handles the rated 120 Degrees F maximum temperature without softening.

Thermals Noise And Power

PVC body material does not conduct heat, so the valve stays near ambient fluid temperature during normal operation. The spring mechanism operates silently with no moving parts that vibrate or rattle. No electrical power is required for the passive check-valve function. The 7 15/16 in length and 4 1/16 in width and height allow installation in standard drain layouts.

Highlights

  • Prevents backflow with inline spring mechanism
  • PVC body resists corrosion in general-purpose applications
  • Stainless-steel spring ensures reliable valve operation
  • Slip connections simplify 2-inch pipe installation
  • Rated for temperatures up to 120 Degrees F

Specifications

TypeDrain Components
BrandDayton
Model4RG75

Questions about this item

Does the inline spring mechanism create noticeable water hammer or vibration when the 2 in PVC check valve runs continuously?

The stainless-steel spring and inline design dampen sudden flow reversal, so water hammer is minimal during all-day operation.

What pipe preparation is required before solvent-welding the 2 in slip connections on this Dayton 4RG75 valve?

Clean and prime both 2 in PVC pipe ends, then apply solvent cement to each slip socket for a watertight joint.

Will the 120 °F temperature limit of this PVC check valve cause issues when installed downstream of a conventional water heater?

Standard tank heaters typically deliver water below 120 °F, so the valve remains within its rated range in normal residential use.

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