DS2-External Pilot Operated Valve
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DS2-External Pilot Operated Valve
PNEUMATIC VALVES:
Janatics External Pilot Operated (DS2) consists of a main stage valve Spool design, and two External Air Pilot for pilot operation. When the Air Supply is connected in the Pilot port, pilot piston is actuated. It actuates the main stage valve to get the desired position. The main valve position opens or closes the flow path in the main body. When the Air Supply is connected with another pilot port, the main valve returns to the normal position.
Spool Type valve:
Janatics DS Series valves consisting of pilot stage valve and main valve with Spool type. To mount multiple valves in a row Manifold is recommended. 2, 4, 6 and 8 valves can be mounted. The unused position can be blocked by Cover Plate Assembly. For Plug type manifold the valve can be mounted using plug. The unused position can be plugged by dummy plug.
- 3/2 Single External Pilot Operated with Spring Return Valve:
- 3/2 Double External Pilot Operated:
Types: Normally Open, Normally Closed
Ports: IN, OUT and Exhaust ports
Available sizes: G1/8, G1/4, G1/2
Normally Open: In the main valve IN and OUT are connected in Normal condition, Exhaust port is closed. When the Air Supply is connected in the Pilot port, pilot piston is actuated. It actuates the main stage valve to get the desired position. Main housing IN and OUT ports are disconnected. OUT and Exhaust ports are connected. When the Air Supply is connected with another pilot port, the main valve returns to the normal position.
Normally Closed: In the main valve OUT and Exhaust are connected in Normal condition; Inlet port is closed. When the Air Supply is connected in the Pilot port, pilot piston is actuated. It actuates the main stage valve to get the desired position. Main housing IN and OUT ports are connected. OUT and Exhaust ports are disconnected. When the Air Supply is connected with another pilot port, the main valve returns to the normal position.
- 5/2 Single External Pilot Operated with Spring Return:
- 5/2 Double External Pilot Operated valve:
Ports: 1 IN, 2 OUT and 2 Exhaust ports
Available sizes: G1/8, G1/4, G1/2
In the main valve IN and 1 Outlet is connected another Outlet and 1 Exhaust are connected. Another Exhaust is closed, in the normal condition. When the Air Supply is connected in the Pilot port, pilot piston is actuated. It actuates the main stage valve to get the desired position. IN connected with another Outlet & Outlet with another Exhaust. And one Exhaust is closed. When the Air Supply is disconnected, the main valve returns to the normal position.
- 5/3 Double External air pilot Operated valve - Blocked:
Ports: 1 IN, 2 OUT and 2 Exhaust ports
Available sizes: G1/8, G1/4, G1/2
In the main valve 3 positions arrived. In the middle position all ports are closed. In the second position when one External air pilot port is energised in the valve IN and 1 Outlet is connected another Outlet and 1 Exhaust are connected. Another Exhaust is closed. In the third position when the second External air pilot port is energised the port connections for supplying the air and exhausting the air are changed. IN connected with another Outlet & Outlet with another Exhaust. And one Exhaust is closed. When both the External air pilot ports are in not connected with pilot air all ports are closed / not connected, main valve comes to the normal position. A Spring provided inside the valve to keep in normal position. Both the External air pilot ports should not be energised simultaneously.
- 5/3 Double External air pilot Operated valve - Exhausted:
Ports: 1 IN, 2 OUT and 2 Exhaust ports
Available sizes: G1/8, G1/4, G1/2
In the main valve 3 positions arrived. In the middle position both Outlet ports are connected with both Exhaust ports. The Inlet is in blocked condition. In the second position When one External air pilot port is energised in the valve IN and 1 Outlet is connected another Outlet and 1 Exhaust are connected. Another Exhaust is closed. In the third position when the second External air pilot port is energised the port connections for supplying the air and exhausting the air are changed. IN connected with another Outlet & Outlet with another Exhaust. And one Exhaust is closed. When both the External air pilot ports are in deenergised condition, Outlet ports are connected with exhaust ports & Inlet blocked, main valve comes to the normal position. A Spring provided inside the valve to keep in normal position. Both the External air pilot ports should not be energised simultaneously.
- 5/3 Double External air pilot Operated valve - Energised:
Ports: 1 IN, 2 OUT and 2 Exhaust ports
Available sizes: G1/8, G1/4, G1/2
In the main valve 3 positions arrived. In the middle position both Outlet ports are connected with Inlet port. The Exhaust ports are in blocked condition. In the second position When one External air pilot port is energised in the valve IN and 1 Outlet is connected another Outlet and 1 Exhaust are connected. Another Exhaust is closed. In the third position when the second External air pilot is energised the port connections for supplying the air and exhausting the air are changed. IN connected with another Outlet & Outlet with another Exhaust. And one Exhaust is closed. When both the External air pilot ports are in deenergised condition Outlet ports are connected with Inlet port Exhaust ports are blocked, main valve comes to the normal position. A Spring provided inside the valve to keep in normal position. Both the External air pilot ports should not be energised simultaneously.
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