Checkvalve type S

Function and configurationCheck valve type S is used to allow fluid flowing in one direction and leakage-free closure in theopposite direction. When fluid flow via port P1, fluid pushes poppet (2) to ...

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Function and configuration

Check valve type S is used to allow fluid flowing in one direction and leakage-free closure in theopposite direction. When fluid flow via port P1, fluid pushes poppet (2) to move overcoming thespring(3), and connects chamber P1 and P2. When fluid flows from P2 to P1, poppet (2) moves leftand the check valve closes.

For check valves without a spring, the fixed position should ensure that the poppet will remain at theclosed position.

Ordering code

Technical data

Size		6	8	10	15	20	25	30	40
Max.flow-rate	L/min	15	30	40	120	200	300	400	600
Max.operating pressure	bar	315
Crack pressure	bar	0.5;1.5;3;5
Fluid		Mineral oil; Phosphate ester
Fluid temperature range	℃	-30 to+80
Viscosity range	m㎡/s	2.8 to 500
Degree of contamination		Maximum permissible degree of fluid contamination: Class 9.NAS 1638 or 20/18/15, ISO4406

Characteristic curves(Measured at Sol =40°C +5°C, using HLP46)

Unit dimensions of threaded connection

Size		6	8	10	15	20	25	30	40
D1	G thread	G 1/4	G 3/8	G 1/2	G 3/4	G1	G1 1/4	G1 1/2	G2
D1	Metric thread	M14x1.5	M18x1.5	M22x1.5	M27x2	M33x2	M42x2	M48x2	M60x2
H1		22	28	34.5	41.5	53	69	75	92
L1		58	58	72	85	98	120	132	165
T1		12	12	14	16	18	20	22	28
A/F		19	24	30	36	46	60	65	80
Weight(kg)		0.1	0.2	0.3	0.5	1	2	2.5	4.4

Unit dimensions of sub-plate mounting

Size	B1	B2	L1	L2	L3	L4	L5	L6	L7	H	D1	T	O-ring	Weight(Kg)
10	85	66.7	78	42.9	18	28.6	7.2	-	31.8	71	Φ13	23	17.12x2.62	2
20	102	79.4	101	60.3	23	38.1	11.1	-	44.5	108	Φ22	24	28.17x3.53	4.3
30	120	96.8	128	84.2	28	50.8	16.7	42.1	62.7	110	Φ30	25	34.52x3.53	7.7