2/2 AIR OPERATED VALVES
1/2" - 2"

1. DIAPHRAGM VALVES 1" TO 2"

Valve is controlled by pilot fluid (air, water) acting on the diaphragm which separates it from the main fluid.
In its basic position, the valve is held open by means of spring force.
When pilot fluid is applied the valve closes. Valve opens when the coil is energised and shuts off the pilot fluid. Pilot fluid is exhausted through pipe vent.
Required pilot pressure is 1 bar over the main fluid pressure, however, it must not exceed 8 bar.

fotografija TECHNICAL DATA:
Ports:
(click the link for complete specifications)
Differential pressure: 0 to 6 bar
Pilot pressure: max 8 bar
Body: Brass
Internal parts: Brass, stainless steel
Seals: NBR, EPDM
Fluid temperature:
 -10°C to +75°C
Ambient temperature: max +55°C
Viscosity: max 21 mm2/s
Response time: 10 to 20 ms
Voltage: 230, 115, 48, 24 V 50/60 Hz
24, 12 V DC
Duty cycle: continuous (ED100%)
Cycling rate: 10 to 100 cpm
Electrical protection: IP65 (with plug to DIN 43650)
EEx me II rated explosionproof solenoids also available


2. PISTON VALVES 1/2" TO 2"

Valve is controlled by pilot fluid (air, water) acting on piston in the cylinder. We recommend using JAKŠA 3-way control valve for pilot fluid shut-off. Various pneumatic control devices can also be used, however.
Valve is shut by the spring force.
When pilot pressure is applied (e.g. by activating the 3-way control valve) the valve opens. When pilot fluid is shut-off the valve also shuts. Pilot fluid is exhausted through pipe vent.
We recommend using (oiled) air as pilot fluid. Water can also be used, but this may decrease valve lifetime due to potential impurities in water or calcium deposits on moving parts.
Required pilot pressure depends on main fluid pressure, but in must not exceed 10 bar.


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JAKŠA d.o.o.  Šlandrova 8, SI-1231 Ljubljana, Slovenia, EU   tel.: +386 1 537 30 66   fax: +386 1 537 30 67   e-mail: info@jaksa.si   www.jaksa.si
Specifications are subject to change due to improvement.
Last update: 2008-05-28