PILOT OPERATED RELIEF VALVE RF SERIES FEATURES • RF series relief valve is designed on the theory of differential pressure created by flow across the orifice of the balance piston. This differential pressure acts to open the piston against the spring, permitting enough fluid vented to tank at the set pressure. • Piston moves smoothly, and controlled by pilot pressure, provides stable pressure control and good repeatability.

Quick Links Model Code Specifications Dimensions

Model Code - top

Symbols - top




Specifications - top

	MAX.	PRESSURE ADJ.	MAX. FLOW	MOUNTING BOLTS (FOR G TYPE)
MODEL	PRESSURE	RANGE	LPM(GPM)	MM(INCH)
	BAR (PSI)	BAR (PSI)
RF-*04	245 (3550)	1:7-69(100-1000) 2:35-138(500-2000) 3:69-247(1000-3550)	100 (25)	M12x70L(1/2"x2-3/4") 2PCS M12x90L(1/2"x3-1/2") 2PCS
RF-*06			200 (50)	M16x60L(5/8"x2-1/4") 2PCS M16x80L(5/8"x3-1/4") 2PCS
RF-*10			400 (100)	M20x70L(3/4"x2-3/4") 2PCS M20x90L(3/4"x3-1/2") 2PCS

PERFORMANCE CURVES - top

TEST CONDITIONS
Viscosity: 35 cSt (175 SSU) Temperature: 50° C (122° F)

 

NOMINAL OVERRIDE

MIN. ADJ. PRESSURE

Dimensions - top

UNIT: mm(inch) WEIGHT: 1.5 kgs(3.4 lbs)

RFG-04


RFG-06/10

MODEL	A	B	C	D	E	F	G	H	I	J	K	WEIGHT
												KGS	LBS
RF-G06	175 (6.89)	104 (4.09)	160 (6.30)	104 (4.09)	70 (2.76)	66.6 (2.62)	44.1 (1.74)	11.1 (1.74)	19.5 (0.76)	122 (4.80)	23.8 (0.94)	6.7	14.7
RF-G10	184 (7.24)	120 (4.72)	195 (7.68)	125 (4.92)	82 (3.23)	88.9 (3.50)	63.6 (2.50)	12.7 (0.50)	18.5 (0.73)	150 (5.91)	31.8 (1.25)	10.1	22.1

Dimensions - top

UNIT: mm(inch)

RF-T*

MODEL	A	B	C	D	P PORT	T PORT	G PORT	WEIGHT
								KGS	LBS
RF-T04 SERIES	MAX. 142 (5.59)	92 (3.62)	111 (4.37)	84.5 (3.33)	PT 1/2"	PT 1/2"	PT 1/4"	3.4	7.5
RF-T06 SERIES	MAX. 148 (5.83)	102 (4.02)	140 (5.51)	103 (4.05)	PT 3/4"	PT 3/4"	PT 1/4"	5.3	11.7
RF-T10 SERIES	151 MAX. (5.94)	120 (4.72)	183 (7.20)	120 (4.72)	PT 1-1/4"	PT 1-1/4"	PT 1/4"	8.5	18.7