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- Ross Asia 27 series (with control adapter) In-line poppet valve with built-in function
Japan, Ross Asia
Ross Asia 27 series (with control adapter) In-line poppet valve with built-in function
Made in Japan
Manufacturer : Ross Asia
Model : 27 series (with control adapter)
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Headline valves are available with LOGICAIR®adaptors to provide special functions:Timed sequence actuation and/or deactuationMomentary control of actuation/deactuation from one pressure sourceActuating force multiplier, for use with low signal pressures
Pressure Boost Adapter – Increases the actuating force on the valve piston. Useful with low pilot pressure.
- Air Index Adaptor –Allows a single control valve to function as an impulse controlled, detented valve. Successive momentary signals from
the same source actuate and de-actuate the valve.
- Timed Sequence Adaptor –Allows the actuation and/or de-actuation of a valve to be delayed up to 30 seconds for 2/2 valves, and up to 3
seconds for 3/2 and 4/2 valves. For longer delays see adaptor below.
- Timed Sequence Extension Adaptor –For use in conjunction with the timed sequence adaptor to extend the delay interval up to 60
seconds. This adaptor also provides quicker response to actuating and de-actuating signals.
VALVE FEATURES
| Poppet Design | Poppet construction for high dirt tolerance |
| Mounting Options | Can be mounted close to actuator, reducing length of pipe to be pressurized/exhausted on each cycle |
| Pilot Supply | Internal or external; easily field-convertible for use with an external pilot supply. |
| High Velocity | Near zero leakage |
| Positive Sealing | No sliding action to prevent damage and wear |
| Reliability | Consistent response times over the life of the valve |
Specifications
IMPORTANT NOTE: Please read carefully and thoroughly all of the CAUTIONS, WARNINGS on the inside back cover
PRODUCT CREDENTIALS
Ordering Information
Valves with Pressure Booster Adaptor – 3/2 Solenoid Pilot Controlled
Pressure Booster Adaptor
Increases the actuating force on the valve piston. It should be used when the inlet and pilot pressures are below the minimums specified for the valve. It should also be used when an external pilot supply with a lower pressure than the inlet pressure is used. The valve’s pilot pressure is applied to a piston in
the pilot booster adaptor that has a larger area than the piston in the valve. The force on the piston in the adaptor is thereby larger than that which could be produced by the piston in the valve. This larger force is applied to the valve’s piston directly so that there is then sufficient force to shift the valve properly.
Valves with Air Index Adaptor – 4/2 Solenoid Pilot Controlled
Air Index Adaptor
Allows a valve controlled by a single solenoid pilot to function as an impulse controlled, mechanically detented valve. A momentary electrical signal to the solenoid actuates the valve and holds it in the actuated position. A second momentary signal from the same source returns the valve to its deactuated
position.
Valves with Timed Sequence Adaptor – 2/2 Solenoid Pilot Controlled
Timed Sequence Adaptor
Allows the actuation and/or de-actuation of a valve to be delayed up to 30 seconds. The time delay function is controlled by a continuously adjustable tapered needle. Longer time delays can be obtained by using this adaptor in conjunction with the timed sequence extension adaptor,
OPERATION
Timed In Adaptor: Solenoid energized; after preset delay valve is actuated. Solenoid de-energized; valve immediately deactuated.
Timed Out Adaptor:Solenoid energized; valve immediately actuated. Solenoid de-energized; after preset delay valve is deactuated.
Valves with Timed Sequence Adaptor – 3/2 Solenoid Pilot Controlled
Timed Sequence Adaptor
Allows the actuation and/or de-actuation of a valve to be delayed up to 3 seconds. The time delay function is controlled by a continuously adjustable tapered needle. Longer time delays can be obtained by using this adaptor in conjunction with the timed sequence extension adaptor,
OPERATION
Timed In Adaptor: Solenoid energized; after preset delay valve is actuated. Solenoid de-energized; valve immediately deactuated.
Timed Out Adaptor:Solenoid energized; valve immediately actuated. Solenoid de-energized; after preset delay valve is deactuated.
Valves with Timed Sequence & Timed Sequence Extension Adaptors – 3/2 Solenoid Pilot Controlled
Timed Sequence & Timed Sequence Extension Adaptors
Used in conjunction can increase the time delay interval up to 60 seconds.It also helps to obtain “snap” action of the valve. By keeping pilot air off the main valve piston until the pressure has built high enough to ensure prompt valve response, the timed sequence extension adaptor prevents the piston from creeping.
Valves with Timed Sequence & Timed Sequence Extension Adaptors – 4/2 Solenoid Pilot Controlled
Timed Sequence & Timed Sequence Extension Adaptors
Used in conjunction can increase the time delay interval up to 60 seconds. It also helps to obtain “snap” action of the valve. By keeping pilot air off the main valve piston until the pressure has built high enough to ensure prompt valve response, the timed sequence extension adaptor prevents the piston from creeping.
Valves with Pressure Booster Adaptor – 2/2 Pressure Controlled
Pressure Booster Adaptor
Increases the actuating force on the valve piston. It should be used when the inlet pressure exceeds the available signal pressure, or when the signal pressure is less than 15 psig (1 bar). The valve’s signal pressure is applied to a piston in the pressure booster
adaptor that has a larger area than the piston in the valve. The force on the piston in the adaptor is thereby larger than that which could be produced by the piston in the valve. This larger force is applied to the valve’s piston directly so that there is then sufficient force to shift the valve properly.
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