3/4" Watts LF600 Soft Seated Check - IPS
Item Number: 0555176
1
/
of
1
Regular price
$195.75
Special Order
When Will it Ship:
Contact for Lead Time
Estimated transit time: 2 to 5 Business Days
Brand - Watts
Couldn't load pickup availability
- Size: 3/4 inch
- Weight: 28.1 lb
- Body Material: Lead Free Cast Copper Silicon Alloy
- Seat Material: PTFE
- Maximum Working Pressure: 400 PSI WOG non-shock
- Prevents water hammer and ensures silent operation
- Low pressure drop design
- Can be installed horizontally or vertically
- NSF/ANSI 61, Annex G Certified
Description
Description
The 3/4" Watts LF600 Lead Free Silent Check Valve is designed for general industrial and plumbing applications to prevent water hammer and ensure silent operation. It features a durable lead-free brass body, a PTFE seat, and a conical lead-free check for full fluid flow and low pressure drop. This soft-seated valve can be installed in both horizontal and vertical positions. Rated for a maximum working pressure of 400 PSI WOG non-shock, it is also NSF/ANSI 61 Annex G certified for reduced lead content applications.
Help Me Connect
Help Me Connect
Connections
- The 3/4 inch female NPT threaded end connections are designed to connect to 3/4 inch male NPT threads in your piping system.
- This valve can be installed in either a horizontal or vertical position. For vertical installations with upward flow, consult the factory for proper use.

Collapsible content
Additional Details
The 3/4" Watts Series LF600 Lead Free Silent Check Valve is designed for general industrial and plumbing applications to prevent water hammer and ensure silent operation.
This soft-seated check valve features a low pressure drop and can be installed in either horizontal or vertical positions.
Features
- Provides silent operation to prevent water hammer
- Designed for low pressure drop, equivalent to a swing check
- Features a PTFE seat for reliable sealing
- Conical Lead Free check for full fluid flow
- Can be installed in horizontal or vertical position (with upward flow, consult factory for proper use in vertical installations)
- Lead Free compliant for applications requiring reduced lead content
Specifications
- Nominal Size: 3/4 inch
- Body Material: Lead Free* Cast Copper Silicon Alloy
- Check Material: Lead Free* Cast Copper Silicon Alloy
- Adapter Material: Lead Free* Brass
- Seat Material: PTFE
- O-ring Material: Nitrile
- Spring Material: Stainless Steel
- Guide Bushing Material: Stainless Steel
- Connections: Female NPT Threaded
- Maximum Working Pressure (WOG non-shock): 400 PSI @ -20°F to 100°F (-29°C to 38°C)
- Maximum Working Pressure (WSP): 15 PSI @ 250°F (121°C)
- Valve Type: Silent Check Valve
- Design: Soft Seated
- Testing: Non-Testable
- Approximate Weight: 0.75 lbs (0.3 kg)
Certificates & Approvals
- NSF/ANSI 61, Annex G Certified
- Compliant with state cooler and standards requiring reduced lead content
FAQs
What is the primary purpose of the Watts LF600 Silent Check Valve?
The primary purpose is to prevent water hammer in piping systems and ensure silent operation in general industrial and plumbing applications.
What materials are used in the construction of this check valve?
The valve features a lead-free cast copper silicon alloy body and check, a PTFE seat, nitrile O-ring, stainless steel guide bushing, and a stainless steel spring. The adapter is lead-free brass.
What are the installation requirements for the Watts LF600 check valve?
This valve can be installed in either a horizontal or vertical position. For vertical installations with upward flow, it is recommended to consult the factory for proper use.
What is the maximum operating pressure for this 3/4" LF600 valve?
The maximum working pressure is 400 PSI WOG (Water, Oil, Gas) non-shock between -20°F to 100°F (-29°C to 38°C), and 15 PSI WSP (Working Steam Pressure) at 250°F (121°C).
Is this valve certified for lead-free applications?
Yes, the Watts LF600 valve is certified to NSF/ANSI 61, Annex G, and is compliant with state cooler and standards requiring reduced lead content.