Olab - Testata

SERIES 37000-FM-2

SHUT-OFF VALVE FOR SAFETY VALVE WITH OLAB CERTIFIED 100% PFAS-FREE HNBR O.RING FOR PROFESSIONAL A3-A2L REFRIGERATION SYSTEMS

SERIES 37000-FM-2
UL

Category: A3-A2L SPECIALIST

Notes:

  • PS: 52 BAR (754 psi)
  • TS: -40°C ÷ +150°C (-40°F ÷ +302°F)
  • OLAB CERTIFIED 100% PFAS-FREE EPDM O.R.
  • LOW-PFAS IMPACT COMPONENT
  • CERTIFICAZIONI: UL 207

Technical Data Sheet

OLAB Series 37000-FM-3 is the shut-off ball valve designed for safety valve integration in A3–A2L professional refrigeration systems, offering reliable performance, high-pressure resistance, and secure sealing over time. Its spined brass body allows for a completely mechanical connection, eliminating the need for welding.

This not only reduces the risk of leaks commonly associated with brazed joints, but also prevents thermal stress that could damage the internal O-Rings during assembly or installation.
The AISI 303 stainless steel stem is equipped with double HNBR 100% PFAS-FREE O-Rings certified by OLAB, also used in the sealing gasket of the brass cap, ensuring enhanced sealing performance even under severe conditions. The PTFE seats provide excellent resistance to chemical and thermal stress, maintaining functionality under the most demanding operating pressures.

Rated for 52 bar (754 psi) and a temperature range of –40°C to +150°C (–40°F to +302°F), Series 37000-FM-3 is built to perform in the most challenging A3–A2L applications.
Each valve is 100% helium tested in OLAB’s dedicated facility. The laser-marked date and serial number certify the test results and allow lifetime traceability of performance data. Certified according to UL 207, this product is part of OLAB’s LOW-PFAS IMPACT COMPONENTS range—reflecting a commitment to environmental responsibility without compromising on durability, safety, or reliability.  

Technical features:

  • Shut-off valve for safety valve
  • Yellow brass body mf connection
  • Control stem made of stainless steel aisi 303 with double 100% PFAS-FREE OLAB-Certified HNBR O.R.
  • PTFE sealing
  • Brass cap with further 100% PFAS-FREE OLAB-Certified HNBR O.R.
  • Designed for professional A3-A2L refrigeration systems

COMPATIBLE A3–A2L REFRIGERANT GASES

HFC, HFO, and HFO/HFC blends: R404A, R407C, R410A, R507, R32, R134a (up to +125°C / 257°F).
HFO and HFO/HFC blends: R1234ze, R448A, R449A, R450A, R452A, R1234yf.
HC: R290, R600, R600a.

Products equipped with HNBR seals must not be installed on systems using HCFCs (R22) or any refrigerants mixed with mineral oils or alkylbenzene lubricants.

Our HNBR compound seals have been specifically designed and manufactured for compatibility with A3 and A2L refrigerant gases (as defined in ASHRAE Standard 34). However, due to the countless variables involved in real-world applications—such as pressure, temperature, and mixing ratios—an application-specific validation on the system is always required.

NO WELDING
Spin-locked body ensures maximum strength and leak-tightness.

ROBUST

Built to withstand working pressures up to 52 bar (754 psi).

SAFE

Reliable sealing guaranteed.

AISI 303 STAINLESS-STEEL STEM

Engineered for long-term durability.

DOUBLE OLAB CERTIFIED 100% PFAS-FREE HNBR O-RING

Positioned on the operating stem for extra protection.

BRASS CLOSING CAP

Fitted with an additional HNBR gasket that maintains the seal even if the stem O-Rings are accidentally damaged.

100% HELIUM TESTED
Each unit is individually tested in a state-of-the-art helium facility. Date and serial number are engraved to certify compliance and allow full traceability of recorded performance data.