1/2" Watts LF600 Soft Seated Check - IPS

Item Number: 0555175
1 1
$165.37
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • Size: 1/2 inch
  • Weight: 17.5 lb
  • Body Material: Lead Free* cast copper silicon alloy
  • Seat Material: PTFE
  • Maximum Operating Pressure (WOG Non-Shock): 400 psi
  • Silent operation prevents water hammer
  • Install horizontally or vertically with upward flow
  • Lead Free* construction (less than 0.25% lead)
  • NSF Certified to NSF/ANSI 372

Description

The 1/2 inch Watts LF600 Lead Free Silent Check Valve is engineered for residential, commercial, industrial, and solar plumbing systems to eliminate water hammer. Constructed with a Lead Free* cast copper silicon alloy body and a PTFE seat, it ensures silent operation and low pressure drop. This valve features threaded ends and can be installed horizontally or vertically with upward flow. It boasts a maximum working pressure of 400 psi WOG non-shock and is NSF/ANSI 372 certified for lead-free compliance, containing less than 0.25% lead by weight on wetted surfaces. Item number 0555175.

Help Me Connect

Connections

  • This Watts LF600 check valve features 1/2 inch female NPT threaded connections, designed to connect directly to male NPT threaded pipes or fittings.

Installation Orientation

  • The valve can be installed in both horizontal and vertical positions. For vertical installations, ensure the flow is in an upward direction.
View full details

Additional Details

The 1/2 inch Watts Series LF600 Lead Free Silent Check Valve is designed for residential, commercial, industrial, and solar applications to prevent water hammer effects in piping systems.

This valve features a conical Lead Free* check with a PTFE seat, providing silent operation and a low pressure drop equivalent to a swing check valve. It is constructed from Lead Free* cast copper silicon alloy for the body and check, with a Lead Free* brass adapter.

Features

  • Conical Lead Free* check for full fluid flow
  • PTFE seat ensures a soft, leak-tight closure
  • Silent operation prevents water hammer effects
  • Low pressure drop equivalent to a swing check
  • Can be installed in either a horizontal or vertical position with upward flow
  • Threaded ends for secure pipe connections
  • Lead Free* construction, meeting reduced lead content requirements (less than 0.25% lead by weight on wetted surfaces)

Notice: These valves are not suggested for installation in sewage ejector piping. Do not use for reciprocating air compressor service.

Specifications

  • Body Material: Lead Free* cast copper silicon alloy
  • Check Material: Lead Free* cast copper silicon alloy
  • Adapter Material: Lead Free* brass
  • Seat Material: PTFE
  • Guide Bushing Material: Stainless Steel
  • Spring Material: Stainless Steel
  • Connection Size: 1/2 inch
  • Connection Type: Threaded (Female NPT)
  • Maximum Operating Pressure (WOG Non-Shock): 400 psi (27.6 bar) @ -20°F to 100°F (-29°C to 38°C)
  • Maximum Operating Pressure (WSP): 15 psi (1 bar) @ 250°F (121°C)
  • Length (A Dimension): 2 1/8 inches (54 mm)
  • Width (B Dimension): 1 1/4 inches (32 mm)
  • Weight: 0.5 lbs (0.2 kg)

Certificates & Approvals

  • NSF Certified to NSF/ANSI 372

FAQs

What is the primary purpose of the Watts LF600 silent check valve?

The primary purpose of this valve is to prevent the effects of water hammer in piping systems, ensuring silent operation in residential, commercial, industrial, and solar applications.

What materials are used in the construction of the 1/2" LF600 valve?

The body and check are made from Lead Free* cast copper silicon alloy, the adapter is Lead Free* brass, the seat is PTFE, and the guide bushing and spring are stainless steel.

What are the maximum pressure and temperature ratings for this valve?

It has a maximum operating pressure of 400 psi (WOG non-shock) from -20°F to 100°F, and 15 psi (WSP) at 250°F.

Can the 1/2" Watts LF600 check valve be installed in any orientation?

It can be installed in both horizontal and vertical positions. For vertical installations, it is important to ensure the flow is in an upward direction.

Is this valve certified for lead-free use?

Yes, it features Lead Free* construction, meaning the wetted surface contains less than 0.25% lead by weight. It is NSF Certified to NSF/ANSI 372.