In-line check valve

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2 Specification 02 03 04 06 10 12
Max. working pressure (MPa) 31.5
Max. Flow (L/min) 30 50 140 220 320 430
Working fluid Mineral oil;phosphate-ester
Fluid temp (℃) -20~70
Viscosity (mm²/s) 2.8-380
Opening pressure (MPa) a0.05 b0.4
Weight 0.15 0.29 0.48 0.9 2.0 2.9
Cleanliness
The maximum allowable cleanliness of the oil should be according to 9th degree of Standard NASl638.lt is suggested that the minimum filter rating should beβ10≥75。


Check valve allows the fluid to flow only in one direction and prevents it from flowing in the opposite direction.
Check valve could be used at the outlet of hydraulic pressure pump to avoid the oil flow backwards. It can also separate the oil lines to avoid the oil lines mutual interference.
It can be used as by-pass valve.


Specification D L(mm) S(mm) T(mm)
British System Metric System
02 G3/8* M18X1.5 58 24 12
03 G1,2" M22X1.5 72 30 15
04 G3/4" M27X2 85 36 17
06 G1" M33X2 98 46 20
10 G1 1/4” M42X2 120 60 22
12 01 1/2” M48X2 138 65 24

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