Watts F111584 957-OSY-FS 2 1/2" Reduced Pressure Zone Assembly with OS&Y Shutoff Valves
Item number 74af111584MFR number F111584
$5,091.39/Each
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Product Overview
- Protects potable water systems from contamination
- 2 1/2" flanged joint connections
- Type 304 stainless steel housing and sleeve
- Compact design allows for use on small enclosures
- Suitable for supply pressure up to 175 PSI with 33 to 140 degrees Fahrenheit temperature range
- Quantity
- 1/Each
- Shipping Weight
- 225 lb.
- Length
- 30 3/4 Inches
- Width
- 9 3/16 Inches
- Height
- 22 7/8 Inches
- Features
- Corrosion-Resistant FM Approved Made in America NSF Listed
- Inlet / Outlet Size
- 2 1/2 Inches
- Material
- Stainless Steel
- Maximum Pressure
- 175 PSI
- Stainless Steel Type
- Type 304
- Temperature Range
- 33 - 140 Degrees F
- Type
- Reduced Pressure Zone Assemblies
Watts F111584 Details
This Watts 957-OSY-FS 2 1/2" reduced pressure zone assembly is designed to protect potable water systems from contamination in accordance with national plumbing codes. It features 2 1/2" flanged joint inlet and outlet connections, torsion spring check valves, resilient-seated gate valves with outside stem and yoke (OS&Y), test cocks, and a corrosion-resistant stainless steel bottom-mounted pressure relief valve. This assembly can be used with SentryPlus Alert (sold separately) to activate the flood sensor, which detects excessive water discharges from the relief valve.
This unit sports a type 304 stainless steel body and quick-access sleeve that are made to last. It also features a replaceable check disc rubber and groove couplings for easy installation and pipe alignment. Its compact design is 70% lighter than traditional designs and allows for small enclosures to be used. It's suitable for supply pressure up to 175 PSI with a temperature range of 33 to 140 degrees Fahrenheit.
Overall Dimensions:
Length: 30 3/4"
Width: 9 3/16"
Height: 22 7/8"
This Item Ships via Common Carrier. For more information and tips to help your delivery go smoothly, click here.
Because this item is not stocked in our warehouse, processing, transit times and stock availability will vary. If you need your items by a certain date, please contact us prior to placing your order. Expedited shipping availability may vary. We cannot guarantee that this item can be cancelled off of the order or returned once it is placed.

Made in America
This item was made in the United States of America.

ASSE Certified
This product has been certified by ASSE International to meet safety and performance standards for plumbing and mechanical systems

CSA, US and Canada
This product has been certified by the Canadian Standards Association (CSA) to meet select standards for electrical, plumbing, and/or mechanical products in the United States and Canada.

NSF Listed
This item has been certified by NSF International to meet applicable product standards on public safety, health, and / or the environment.

FM Approved
This item is approved by Factory Mutual (FM) to meet applicable product standards.

UL Certified
This product is certified to applicable standards and requirements by UL Solutions.
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