8 LFM500-OSY-GPM

Item Number: 0124787
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$37,727.25
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Size: 8 inch
  • Weight: 731.0 lb
  • Lead Free: Yes (less than 0.25% lead by weight)
  • Housing Material: 304 Stainless Steel (Schedule 40)
  • Shutoff Valves: OSY Resilient Seated Gate Valves
  • Pressure Rating: 175 PSI
  • Temperature Range: 33°F - 110°F
  • Features: Gallon per minute meter
  • Certifications: UL, FM, AWWA, ASSE, CSA B64.4, NSF

Description

The Ames Fire & Waterworks Maxim LFM500 8 inch lead free reduced pressure detector backflow preventer assembly protects potable water systems from contamination and monitors unauthorized water usage. Constructed from durable 304 stainless steel, it features OSY resilient seated gate valves, patented Link Check modules for low pressure loss, and a compact, lightweight design. This assembly is ideal for fire sprinkler systems and other health hazard cross-connections, preventing reverse flow due to backsiphonage or backpressure. It includes a gallon per minute meter for leak detection and is certified by UL, FM, AWWA, ASSE, CSA B64.4, and NSF. Item number 0124787.

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Connections

  • This assembly features OSY (Outside Stem and Yoke) resilient seated gate valves for secure shutoff and isolation.
  • The main housing is designed with groove end connections for integral pipeline adjustment and versatile installation.

Installation Configurations

  • The Maxim LFM500 series supports both horizontal and "N" pattern installations.
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Additional Details

This Maxim™ 8 inch lead free reduced pressure detector backflow preventer assembly protects potable water systems from contamination and monitors unauthorized water use. It is designed to prevent reverse flow from fire protection systems and non-potable water sources due to backsiphonage or backpressure, in compliance with national plumbing codes and water authority requirements.

Features

  • Extremely compact design, up to 70% lighter than traditional designs
  • Housing and sleeve constructed from 304 (Schedule 40) stainless steel
  • Equipped with UL/FM outside stem and yoke resilient seated gate valves for drip-tight shutoff
  • Patented Link Check modules provide lowest pressure loss and unmatched ease of serviceability
  • Includes a gallon per minute meter to detect underground leaks and unauthorized water usage
  • Features groove fittings for integral pipeline adjustment
  • Designed for horizontal or N-pattern installations
  • Corrosive-resistant bottom-mounted pressure relief valve
  • Comes with replaceable check disc rubber and bronze body nickel plated test cocks
NOTICE: The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.

Specifications

  • Size: 8 inch
  • Series: Maxim LFM500
  • Housing & Sleeve Material: 304 (Schedule 40) Stainless Steel
  • Shutoff Valves: OSY (Outside Stem and Yoke) Resilient Seated Gate Valves
  • Link Check Materials: Noryl®, Stainless Steel
  • Check Disc Material: Reversible Silicone or EPDM®
  • Elastomers: EPDM, Silicone, Buna 'N'
  • Test Cock Material: Lead Free* Cast Copper Silicon Alloy
  • Pins & Fastener Material: Series Stainless Steel
  • Spring Material: Stainless Steel
  • Maximum Working Pressure: 175 PSI (12.06 bar)
  • Temperature Range: 33°F – 110°F (5°C – 43°C)
  • Meter: Gallon per minute

Certificates & Approvals

  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • AWWA C511-97
  • ASSE C 1047
  • CSA B64.4
  • CULUS Classified
  • FM Approved
  • NSF Certified to NSF/ANSI 372

Dimensions (Approximate)

  • Overall Length (A): 54 3/4 inch (1391 mm)
  • Length with OSY Valve (C): 37 3/4 inch (959 mm)
  • Width (D): 10 1/2 inch (267 mm)
  • Height (H): 45 1/8 inch (1146 mm)
  • Installation Length (P): 27 3/16 inch (690 mm)

Weight (Approximate)

  • Product Weight: 581 lbs (264 kgs)

FAQs

What is the primary function of the Maxim LFM500 backflow preventer?

The primary function is to protect potable water systems from contamination by preventing the reverse flow of non-potable water or fire protection substances. It also monitors for unauthorized water use.

What material is the housing made from?

The entire valve body and closure sleeve are constructed from 304 (Schedule 40) stainless steel, providing durability and corrosion resistance.

What type of shutoff valves are included with this assembly?

This 8 inch assembly is equipped with OSY (Outside Stem and Yoke) resilient seated gate valves for reliable shutoff and isolation.

What is the maximum operating pressure and temperature range for this device?

The maximum operating pressure is 175 PSI. The temperature range for operation is 33°F to 110°F (5°C to 43°C).

Does this backflow preventer include a water meter?

Yes, it includes a gallon per minute meter as part of its bypass assembly, which helps detect underground leaks and unauthorized water usage.

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