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Lightweight Watts N36 1/2" Vacuum Relief Valve 0138515 Set [VB2zoMqp]

$27.99 $89.99 -69%

Watts N36 1/2"  Vacuum Relief Valve 0138515 for Domestic Hot Water Supply Tanks and Heaters with Top Supply.Features & Benefits:Series N36 Water Service Vacuum Relief Valves are used in water heater/tank applications to automatically allow air to

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Watts 335M2-030 3/4" Female Bronze Boiler Pressure Relief Valve 0342691

Watts N36 1/2"  Vacuum Relief Valve 0138515 for Domestic Hot Water Supply Tanks and Heaters with Top Supply.

Features & Benefits:

Series N36 Water Service Vacuum Relief Valves are used in water heater/tank applications to automatically allow air to enter into the piping system to prevent vacuum conditions that could siphon the water from the system and damage water heater/tank equipment. They have a brass body construction with NPT male inlet connection and a protective cap. Series N36 has a low profile design, is tested and rated to ANSI Z21.22, and is CSA certified. It is suitable for low pressure steam and water service, and is ideal for use in domestic water heaters and supply tanks, table top heaters, jacketed steam kettles, unit heaters, low pressure steam systems, and steam coil heaters. Maximum Working Pressure: 200psi (13.8 bar). Maximum Steam Pressure: 15psi (103 kPa).

Features:

  • All brass body
  • Valve protects water heaters, hot water supply tanks, and other equipment from damage caused by vacuum conditions
  • Protective cap
  • Low profile design

Specifications:

  • Body Material - Brass
  • Connection - 1/2" NPT

Literature:

For Specification sheet for Watts N36 1/2"  Vacuum Relief Valve 0138515 Click Here 

What Our Customers Say

January 1, 2026

Absolutely no complaints!

This is a very smart and useful product.

- Marjorie K..

January 1, 2026

Absolutely no complaints!

An excellent choice. It works truly great.

- Richard K..

January 1, 2026

Absolutely no complaints!

I'm happy with my online order.

- Tiesha B..

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