The Watts W5400 1 1/2 is a 1-1/2" silent spring check valve with Tri Clamp connections. It permits flow in one direction and closes against reverse flow. It features a stainless body and a epdm seat.
This 1 1/2" Watts model W5400 is a check valve with Tri Clamp connections. Constructed from 316L stainless steel with high polish internals, this sanitary check valve ensures, clean directional flow in liquid cooling, food, beverage and dairy applications. Its spring assisted design enables quick shutoff, while Tri Clamp connections support fast installation and maintenance.
Features
- 316L stainless steel construction
- 32 Ra internal surface finish to reduce contamination risk
- Tri Clamp connections for quick install and service
- Spring-assisted for fast, reliable closure
- Ideal for liquid cooling, CIP/SIP, food and beverage, and other industrial applications
Common Questions
- Can I install it vertically?
- Yes. The W5400 1 1/2 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?
- No. This model is not certified lead-free, so it is not for potable-water piping — it is specified for food & beverage service. Watts LF-prefixed check valves cover potable applications.
Specifications
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Type: Check
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Size: 1-1/2"
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Connection: Tri Clamp
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Body Material: Stainless
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Seat / Seal Material: EPDM
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Application: Food & Beverage
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Pack Quantity: 10
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Country of Origin: China
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Warranty: 1 Year Limited
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MPN: W5400 1 1/2
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Lead-Free: No
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Check Mechanism: Spring (Silent)
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Installation Orientation: Horizontal or Vertical
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Silent / Non-Slam: Yes
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Disc / Flapper Material: 316L Stainless Steel
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Integral Strainer Included: No
