They are installed between the pump and the valves and cylinders to protect them from wear and contamination
Thermostatic Controls with Drains
Includes (2) #1 Check Springs
Perfect for heavy-duty impact applications
AC-3e Contact Compatibility M2 Protective Cover With Permissible Ambient Air Temperature Around The Device -40 to 140°F (-40 to 60°C)
Gates B133 Wedge V-Belt, 136 in Outside Lg, 21/32 in Top Wd, 13/32 in Thick, Polyester 45HV61 They are installed between theWedge V Belt, Belt Material SBR, Edge Construction Wrapped, Industry Number B133, Number of Bands 1, Outside Length 136 in, Reinforcing Cord Material Polyester, Thickness 13 32 in, Top Width 21 32 in, Belt Trade Size B, V Belt Type Wedge, Application General Industry, Belt Coating Flex Weave(TM), Belt Series Hi Power(R) II, Color Black, Length Type Closed Loop, Maximum Operating Temperature 140 Degrees F, Minimum Operating Temperature 22 Degrees F V