Watts P6-01 1/4 Lead-Free Check Valve, Brass, FNPT

The Watts P6-01 1/4 is a 1/4" lead-free silent spring check valve with FNPT connections. It permits flow in one direction and closes against reverse flow. It features a brass body. Rated to 235 psi and up to 180°F. This model is certified lead-free for potable-water installations.

This 1/4 inch lead free plastic check valve is used in general plumbing applications where swing check or vertical lift check valves are required. With efficient and silent operation, the valve features 1/4 inch female by female NPT connections, low pressure drop, and full-flow capabilities. The valve supports pressures up to 235 psi and temperatures up to 150 degree F.

Features

• Lead free, NSF approved construction
• Low pressure drop and low opening pressure
• Elastomer seats
• Corrosion resistant

Common Questions

Can I install it vertically?

Yes. The P6-01 1/4 is rated for horizontal or vertical lines because the spring, not gravity, closes the disc. In a vertical run the flow must be upward through the valve, following the body arrow.

Will it slam or cause water hammer?

No. The spring closes the disc before the flow actually reverses, so the valve seats silently instead of being slammed shut by the returning column of water. That is the point of a silent (non-slam) check.

Does it come with a strainer?

No. This is an inline check valve only. If the line carries debris, install a strainer upstream — grit on the seat is the usual cause of a check valve weeping by.

Is it potable rated?

Yes. The P6-01 1/4 is certified lead-free for potable-water piping.

Specifications

• Type: Check
• Size: 1/4"
• Connection: FNPT
• Body Material: Brass
• Max Pressure (psi): 235
• Application: Domestic Water
• Pack Quantity: 50
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: P6-01 1/4
• Temperature: up to 180°F
• Lead-Free: Yes
• Check Mechanism: Spring (Silent)
• Installation Orientation: Horizontal or Vertical
• Silent / Non-Slam: Yes
• Integral Strainer Included: No