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Add the 37 Series Water Heater Vacuum Relief to your store or catalog  
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37 Series Water Heater Vacuum Relief.png

37 Series Water Heater Vacuum Relief

Brand: Apollo Valves
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Apollo® Model VR Vacuum Relief Valves is designed to automatically vent a system should a vacuum occur.

It prevents siphoning of water from the system and/or tank collapse
Features
  • New Brass Poppet for Improved Strength
  • Sizes ½” and ¾”
  • Suitable for LP Steam (15 psig max)
  • Auto Vacuum Relief at Less than ½” Vacuum

1 - 4 of 4 Part Numbers
37-201-01
37-201-01
37 Series Water Heater Vacuum Relief
  • Size: ½"
  • Venting Capacity @ 2" Hg: 15 CFM
37-202- 01
37-202- 01
37 Series Water Heater Vacuum Relief
  • Size: ¾"
  • Venting Capacity @ 2" Hg: 16 CFM
37LF-201-01
37LF-201-01
37 Series Water Heater Vacuum Relief, Lead-Free
  • Size: ½"
  • Venting Capacity @ 2" Hg: 15 CFM
37LF-202-02
37LF-202-02
37 Series Water Heater Vacuum Relief, Lead-Free
  • Size: ¾"
  • Venting Capacity @ 2" Hg: 16 CFM
1 - 4 of 4 Part Numbers

Specifications

Brand

Options

  • Polished Chrome Finish
  • Satin Brass Finish
  • Heavy Spring
  • 1/2" Threaded Connection
  • 3/4" Threaded Connection

Performance Rating

  • Maximum Pressure: 200 psig
  • Maximum Temperature: 250° F

Material

  • Stainless Steel
  • ASTM B16 Brass
  • DZR C27541 Brass (Lead Free)
  • EPDM
  • Glass Filled Noryl

Approvals

  • CSA 4.4/ANSI Z21.22 "Relief Valves for Hot Water Supply Systems"
  • NSF/ANSI 372 Lead Free

Documentation

Data Sheets

Manuals

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