thermal expansion valve: 1.For R22,R134A,R407A,R507/404A 2.Easy to ... be supplied with MOP(Max operating pressure) Protects the compressor motor against excessive evaporating pressure.l 4. Input and ... type and size according to customers requirement.l 5. Suitable for R22, R134a, R407C, R507/404A.l 6. If ... round,reduces superheat 0.3. thermal expansion valve for R22,T134A R407C R507/404A(TCL/TRF)