Plastic Mini Back Pressure/Relief Valves
- SB17 Series

The Chemline SB Series Back Pressure/Relief Valve has two functions. As a back pressure valve, installed in-line downstream of a pump, the back pressure below the metering pump is maintained. When installed in the branch of a tee it is a pressure relief valve. The valve stays closed until inlet pressure reaches the set pressure which is adjusted by turning the spring tensioning bolt. The “Mini” SB17 size relief valves offer high performance in a compact package.

True Union Ends
Ideal for Chemical Dosing Systems

PVC, PP, PVDF
Series:	SB17
Sizes:	1/4" - 3/8"
Ends:	Socket, Threaded or ChemFlareTM*
Diaphragm:	Teflon® Bonded EPDM
O-Rings:	EPDM, FPM (Viton®)
	SB17 Series Mini Back Pressure/ Relief Valve Data Page

* For details on ChemFlareTM End Connectors, consult Chemline.