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CH - Pilot operated Check valve

CH - Pilot operated Check valve
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Industrial Products Check Valves Size 6 to 30 up to 315 bar up to 300 L/min Check Valve Pilot Operated Type CH, Series 10 Data Sheet C-1002/10.98 GB Features ◊ Sub-plate mounting and threaded connection. ◊ Shock-free directional control with preopening. ◊ With or without drain port. ◊ Porting pattern to DIN 24 340 Form D, ISO 5781 and CETOP-RP 121 H. Type CH A1 1 2 3 4 A2 A1 1 2 3 4 A2 X A B X 5 Y A B A3 5 Without Drain Port With Drain Port Functional Description Type CH Series 10 Check Valves are pilot operated valves that may be hydraulic operated to permit reverse flow. Valves may be supplied with or without drain ports. These valves are used to isolate a hydraulic circuit under pressure to prevent a load from falling. The valves comprise a housing (1), a pilot poppet (2), main poppet (3), a spring (4) and a pilot piston (5). Without Drain Port Pressure from A to B opens the main poppet (3) with the pilot poppet (2) against the spring (4) enabling the the fluid to flow from A to B. Pressure from B to A pushes the main poppet (3) and pilot poppet (2) closed stopping flow from B to A. Model CH Page 1.5 Applying pressure to the pilot connection X, moves the pilot piston (5) to the right lifting the pilot poppet (2) first and then the main poppet (3) allowing the fluid to flow from B to A. To ensure that the valve opens due to pressure applied to the pilot piston, a minimum pilot pressure is required (see precautions in use). Drain port Y is plugged. With Drain Port The valve is the same as the description above with the addition of a drain port. The drain port Y is connected to the valve and annular area of the pilot piston (4) is separated from Port A. The pressure from port A will now only act on area A3 of the pilot piston. Data Sheet C-1002/10.98

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Check Valves Industrial Product Ordering Code CH Y 10 R 10 14 V Check Valve Suitable Oil No Code: Mineral Oil V: Phosphate Ester W: Fatty Acid ester, Water Glycol Drain Line No code: Without drain port Y: With drain port Cracking Pressure Size 6, 8, 10, 15, 20, 25, 30 (Sub-plate mounting type 10, 20 and 30 only) Code Cracking Pressure Valve Size 10 1.0 bar 15, 20, 25, 30 14 1.4 bar 6, 10 Type of Connection/Mounting G: P: Threaded Connection (BSP) Sub-plate Mounting Series Number 10 Technical Data For applications outside the following parameters, please consult Kawasaki Precision Machinery...

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Industrial Products Check Valves Technical Data (continued) Weight Type/Size 6 8 10 Without Drain Port 2.5 kg 20 2.5 kg With Drain Port 15 25 4kg 30 8kg 8 kg (6.5 kg for size 20 sub-plate mounting). Installed Position Optional Direction of Flow From A to B, from B to A when pilot operated Pilot Pressure Up to 315 bar Pilot Flow: Figures below, figures in brackets () are for valve CHY20P. Port Size 6 Size 8 Size 10 Size 15 Size 20 Size 25 Size 30 X 2.2 cm³ 2.2 cm³ 2.2 cm³ 8.7 cm³ 8.7 cm³ 17.5 cm³ 17.5 cm³ Y - - - - - - - X 2.2 cm³ 2.2 cm³ 2.2 cm³ 17.5 cm³ 17.5 cm³ (8.7 cm³) 17.5 cm³ 17.5 cm³...

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Check Valves Industrial Product Characteristic Curves Measured at v = 36cSt and t = 50°C Size 6, 8, 10 A 8 Size 15, (without drain port), 20 B B 7 A B B A 7 6 Pressure in bar 6 5 4 3 5 4 3 2 2 1 1 0 100 200 300 400 0 100 Flow in L/min Size 15 (with drain port), 25, 30 A B B A 7 6 5 4 3 2 1 0 100 200 300 400 Flow in L/min B B A Y A X With drain X Without drain Symbols Model CH 200 Flow in L/min 8 Pressure in bar Pressure in bar A 8 Page 4.5 Data Sheet C-1002/10.98 300 400

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