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WATTS®
WATTS® 0158774 40 Series Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Pressure, Bronze Body
Superseded

Superseder Products

WATTS®: F158774

WATTS®

WATTS® 0158774 40 Series Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Pressure, Bronze Body

BrandWATTS®
MFR Part No0158774
TSCO Part Number429575

Warranty Length

  • Limited

Features

  • 8 in thermostat length
  • Non-mechanical seat-to-disc alignment
  • Thermostat is accurate and proven exclusively designed and manufactured by WATTS
  • Tamper-resistant bonnet screws
  • Series 40 and 140 feature a unique thermostat with a special thermo-bonded coating
  • The discharge line must be the same size as the valve outlet and must pitch downward from the valve and terminate at least 6 in (152 mm) above the floor drain where any discharge will be clearly visible
  • Inquire with governing authorities for local installation requirements
  • A relief valve functions in an emergency by discharging water
  • This device is designed for emergency safety relief and shall not be used as an operating control
  • For 100DT discharge line consult your WATTS agent
  • Therefore, it is essential that a discharge line be piped from the valve in order to carry the overflow to a safe place of disposal

Standard Approvals

  • ANSI Z21.22
  • ASME Section IV
  • CSA Certified
  • MIL-V-136-12D
  • SA® Certified
  • PROP65: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm.