LOW NOISE PILOT OPERATED RELIEF VALVE FEATURES • HRF 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. • Special internal passage design keeps flow noise to a minimum.

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Specifications - top

MODEL	MAX. PRESSURE	MAX. FLOW	MOUNTING BOLTS
	BAR (PSI)	LPM (GPM)	METER (INCH)
HRF-G03-*-*	242 (3500)	100 (26.4 )	M12x40Lx4(1/2"x1-3/5")
HRF-G06-*-*		200 ( 52.8 )	M16x50Lx4(5/8"x2")
HRF-G10-*-*		400 (105.6)	M20x60Lx4(3/4"x2-2/5")

PERFORMANCE CURVES - top

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

 

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UNIT: mm(inch)

HRF-G03/G06/G10-R




HRF-G03/G06/G10-L

MODEL	A	B	C	D	E	F	G	H	J
HRF-G03	76(3)	53.8(2.12)	11.1(0.44)	26.9(1.06)	53.8(2.11)	113.5(4.47)	27(1.06)	171(6.73)	13.5(0.53)
HRF-G06	104(4.09)	70(2.76)	17(0.67)	35(1.38)	66.7(2.63)	98.8(3.89)	33.7(1.33)	171(6.73)	17.5(0.69)
HRF-G10	120(4.72)	82.6(3.25)	18.7(0.74)	41.3(1.63)	88.9(3.5)	89(3.35)	44.9(1.77)	219(8.62)	21.5(0.85)
MODEL	K	L	N	P	Q	S	T	SUBPLATE TYPE
HRF-G03	21(0.83)	51(2.01)	132(5.2)	104(4.09)	22(0.86)	106(4.17)	26(1.02)	MF-04
HRF-G06	25(0.98)	51(2.01)	132(5.2)	104(4.09)	27(1.06)	123(4.84)	36.5(1.44)	MF-06
HRF-G10	32(1.26)	65(2.56)	167(6.52)	135(5.32)	33.5(1.32)	155(6.1)	47(1.85)	MF-10