2 1/2 M200-NRS

Item Number: 0191012
1 1
$6,486.00
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Size: 2 1/2 inch
  • Weight: 165.0 lb
  • Body Material: 304 (Schedule 40) Stainless Steel
  • Shutoff Valves: Non-Rising Stem (NRS) Resilient Seated Gate Valves
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 110°F
  • Check Modules: Patented Tri-Link for lowest pressure loss
  • Installation: Horizontal, Vertical, or N Pattern
  • Lead Content: Less than 0.25% by wetted surface weight

Description

The 2 1/2 inch Maxim Double Check Valve Backflow Preventer Assembly is designed to prevent the reverse flow of non-potable water and fire protection substances into the potable water supply. This lead-free assembly features a compact, durable 304 stainless steel body, Tri-Link check modules for minimal pressure loss, and non-rising stem resilient seated gate valves. It is approved for both horizontal and vertical installation. Ideal for non-health hazard cross-connections on high flow fire systems, offering reliable protection in compliance with national plumbing codes. Item number 0191012.

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Primary Use

This 2 1/2 inch Maxim Double Check Valve Backflow Preventer is designed to protect potable water supplies from contamination by non-potable water or fire protection substances. It is intended for installation at cross-connections identified as non-health hazards, such as those found on high flow fire systems and service line entrances, preventing backflow due to backsiphonage or backpressure in compliance with national plumbing codes.

Installation Flexibility

  • Approved for horizontal installation
  • Approved for vertical installation
  • Approved for N pattern installation

The assembly includes non-rising stem (NRS) resilient seated gate valves for connection into your pipeline system.

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Additional Details

This Maxim™ 2 1/2 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and/or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazards such as on high flow fire systems and from other contaminants found at the service line entrance.

Features

  • Extremely compact design
  • 70% Lighter than traditional designs
  • Stainless steel body and sleeve for durability
  • Tri-Link check modules provide lowest pressure loss
  • Unmatched ease of serviceability with single housing sleeve access port
  • Ball valve type test cocks for easy maintenance
  • No special tools are required for maintenance
  • Groove fittings allow integral pipeline adjustment
  • Wetted surfaces contacted by potable water contain less than 0.25% lead by weight

Construction & Operation

  • Consists of two independently operating check valves
  • Includes two non-rising stem resilient seated gate valves and four test cocks
  • Designed for continuous pressure service and can be subjected to backpressure

Installation

  • Approved for horizontal or vertical installation in accordance with the direction of the flow arrow on the assembly

Specifications

  • Product Type: Double Check Valve Backflow Preventer Assembly
  • Series: Maxim™ M200N
  • Nominal Size: 2 1/2 inch
  • Maximum Working Pressure: 175 psi (12.06 bar)
  • Temperature Range: 33°F - 110°F (0.5°C – 43°C)

Materials

  • Housing & Sleeve: 304 (Schedule 40) Stainless Steel
  • Elastomers: EPDM, Silicone, Buna 'N'
  • Tri-Link Checks: Noryl®, Stainless Steel
  • Check Discs: Reversible Silicone or EPDM
  • Test Cocks: Lead Free Bronze Body
  • Pins & Fasteners: 300 Series Stainless Steel
  • Springs: Stainless Steel
  • Shutoff Valves: Non-rising stem resilient seated gate valves

Dimensions (2 1/2 inch, M200N with NRS Shutoff Valves)

  • Overall Length (A): 30 3/4 inch (781 mm)
  • C (NRS): 16 3/8 inch (416 mm)
  • D: 9 3/8 inch (238 mm)
  • G: 3 1/2 inch (89 mm)
  • H: 29 1/16 inch (738 mm)
  • J: 21 1/2 inch (546 mm)
  • P: 15 13/16 inch (402 mm)
  • Weight (NRS): 122 lbs (55 kgs)

Certificates & Approvals

  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCCHR-USC)
  • AWWA C510-97
  • ASSE 1015
  • CSA B64.4
  • UL Classified
  • FM Approved
  • NSF (Wetted surface of product contains less than 0.25% lead by weight)

FAQs

What is the primary purpose of the 2 1/2 inch Maxim Double Check Valve Backflow Preventer?

This assembly is designed to prevent the reverse flow of non-potable water and fire protection substances into the potable water supply due to backsiphonage or backpressure. It protects cross-connections identified as non-health hazards.

What materials are primarily used in the construction of this backflow preventer?

The housing and sleeve are made from 304 (Schedule 40) Stainless Steel. Elastomers include EPDM, Silicone, and Buna 'N', while test cocks are Lead Free Bronze Body.

Can this backflow preventer be installed in different orientations?

Yes, this assembly is approved for horizontal, vertical, or 'N' pattern installations, as long as it is in accordance with the direction of the flow arrow on the assembly.

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

The maximum working pressure is 175 psi (12.06 bar). It operates within a temperature range of 33°F to 110°F (0.5°C – 43°C).

What type of shutoff valves are included with this Maxim M200N assembly?

This assembly features non-rising stem (NRS) resilient seated gate valves, which are designed for reliable operation and durability.