'/%3E%3C/svg%3E)
Hover image to zoom
 --%3E %3Csvg version='1.1' id='No-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23CECECE' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Hover image to zoom
$7,984.01 each
Backorder
Get it Wed, Aug 5 - Fri, Sep 4
'/%3E%3C/svg%3E){kind=small}
Lift Gate
–
This product weighs 198 lbs. and may require the use of a lift gate. If you do require a lift gate at your delivery, you'll have the option to add this FREE of charge when you checkout.
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
–
2-1/2"
Yes
Cast Iron
175 MAX PSI
Flanged x Flanged Connection
Inline
Description
–
Series LF909-FS Reduced Pressure Zone Assemblies are designed to provide cross-connection control protection of the potable water supply in accordance with national plumbing codes. This series can be utilized in a variety of installations, including health hazard cross connections in plumbing systems or for containment at the service line entrance. With its exclusive relief valve design incorporating the "air-in/water-out" principle, it provides substantially improved relief valve discharge performance during the emergency conditions of combined backsiphonage and backpressure with both checks fouled. The coating on this backflow assembly uses ArmorTek technology to resist corrosion due to microbial induced corrosion (MIC) or exposed metal substrate. Series LF909-FS features Lead Free* construction to comply with Lead Free* installation requirements.
With an upgrade of the SentryPlus Alert technology, Series LF909-FS contains an integrated flood sensor to detect excessive water discharges from the relief valve. When activated through an add-on sensor connection kit, the flood sensor relays a signal that triggers notification to qualified service personnel who can take corrective action, thus avoiding the possibility of ruinous flooding and costly damage. The add-on sensor connection kit is available for both third-party building management systems, or BMS, and cellular communications.
*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.
Product Features:
With an upgrade of the SentryPlus Alert technology, Series LF909-FS contains an integrated flood sensor to detect excessive water discharges from the relief valve. When activated through an add-on sensor connection kit, the flood sensor relays a signal that triggers notification to qualified service personnel who can take corrective action, thus avoiding the possibility of ruinous flooding and costly damage. The add-on sensor connection kit is available for both third-party building management systems, or BMS, and cellular communications.
*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.
Product Features:
- Replaceable seats
- Stainless steel internal parts
- No special tools required for servicing
- Captured spring check assemblies
- Fused epoxy coated and lined checks
- Utilizes advanced ArmorTek coating technology to resist corrosion of internals
- Industrial-strength sensing hose
- Field reversible relief valve
- Air-in/water-out relief valve design provides maximum capacity during emergency conditions
- Integrated sensor for flood detection
- Domestic outside stem and yoke gate valves
- Alert features available with add-on sensor connection kit
Specs
–
| Connection Type: | Flanged x Flanged |
|---|---|
| Body Pattern: | Inline |
| Valve Type: | Domestic OSY Valve |
| Features: | Flood Sensor |
| Material: | Cast Iron |
| Size: | 2-1/2" |
| Product Type: | Backflow Preventer |
| Lead Free: | Yes |
| Max Pressure (PSI): | 175 |
| Water Temperature: | 140°F 33°F to 110°F Continuous |
Contact
+
Happy Independence Day!
Our Customer Support will be closed today in honor of Independence Day. We will be back tomorrow to answer your questions.
Call or text 888-757-4774
Special Hours
Closed Now
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
Compare Similar Products
Brand
Material
Size
Max Pressure (PSI)
CURRENT ITEM
Cast Iron
2-1/2"
175
You May Also Need
2 Replacement Parts
Need help finding a replacement part?
Fill out the part request form and someone will get back to you shortly.
PART REQUEST FORM
Product Q&A
1 Question1 Question
Q: what does OSY mean?
Asked by 15 years ago
Add your answer
Verified Reply- PexSupply StaffIt is a suffix from the manufacturer that signifies the product has a UL/FM outside stem and yoke resilient seated gate valves.
Was this review helpful to you?
- Al
Open Stem Yoke
Was this review helpful to you?
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy