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Special Purpose Valve section of CV9 Catalog
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Catalog excerpts

Special Purpose Valve section of CV9 Catalog - 1

Special Purpose Valves One-Shot (Pulse) This valve provides a momentary (pulse) output at its cylinder port when pressure is applied at its inlet. No additional flow is possible until pressure at the inlet is removed, reset time allowed, and pressure reapplied. Reset time is slightly longer than output pulse time. When the incoming signal spool is immediately shifted, becoming the output signal. Pressure then bleeds across an orifice through the piston head. When pres- sure is equal on both sides of the piston head there is a force unbalance on the spool. This force unbalance returns the spool to its original position. In this position the incoming signal is blocked and the CYL is connected to the EXH, in turn venting Before the valve can produce another output signal it must be reset. This is accomplished when the input signal is removed from the IN port and the pressure behind the piston bleeds back through the orifice and drops to zero psi.This also self cleans the orifice every cycle. The next incoming signal can then produce another output signal. NOTE! The incoming signal MUST be of sufficient pressure and volume to shift the spool before bleeding across the orifice shooting circuit. Operating pressure: Operating temperature: Self-cleaning orifice. • Buna-N seals. • Pulse time preset field set with ordinary sewing needle. repaired without removing from installation. • Signal Conversion-Pulse, to convert a constant or maintained signal from a limit valve or other source to a pulse or momentary signal for a double piloted valve or other device. This allows the double piloted valve to be shifted back even though the originat- ing limit valve is still held open. See sequencing circuit on page • Single Cycle, to convert a signal from a hand or foot control to a pulse signal. This allows only one cycle of the circuit even if the operator holds the starting device on. The operator must release the starting device to reset the one-shot/pulse valve and then reactuate to achieve the next cycle. See pressure sensing • Open End Blast, to provide a pulse of air through a nozzle or tube for automatic part blow off or chip removal. Body, Aluminum, Unanodized Spool, Aluminum Specifications subject to change without notice or incurring obligation

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Special Purpose Valve section of CV9 Catalog - 2

Special Purpose Valves Adjustable, Interval Delay Interval Delay Upon application of an input signal (pressure) there is an output signal for an adjustable time, within ranges shown. At the end of this time the output signal is vented. Another output is not pos- sible until the input is vented to atmosphere for 1 second minimum (reset time). Another input signal can then be applied for another output signal. Thetime proven Fabco-AirOS-1 Pulse Valve (seepage 13.1) is the basis of this unique, all pneumatic, adjustable, Interval Delay. The OS-1 is mounted on and connected to an adjustable...

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Special Purpose Valve section of CV9 Catalog - 3

Special Purpose Valves Pressure Sensing/Sequence • Simple - One moving part • Corrosion resistant construction • Black anodized aluminium body • Light weight • Buna-N seals • Simple adjustment Light spring and instructions included with each unit. The "RV", with its unique poppet type seal, senses the pressure be- ing applied and opens at a pre-adjusted point to provide a pilot signal for circuit control. Because the output force of a cylinder is a direct function of pressure times area, the "RV" provides direct and precision adjustable force sensing. If the application...

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Special Purpose Valve section of CV9 Catalog - 4

Special Purpose Valves Sequencing Circuit 3. Load pressure from C1 to V2 4. Constant signal from V2 to V3 5. Pulse signal from V3 to V4 7. Load pressure from C2 to V5 10. Constant signal from V6 to V7 11. Pulse signal from V7 to V1 Regulated Supply Start Signal Time Delay Circuit Pressure Sensing/ Sequence Valve Delayed Output (Pulse) Valve Pressure Sensing Circuit Start Signal Regulated System Input Double Pilot Sensing Valve _ 1. Start signal can be maintained or momentary 2. Pulse signal from V1 to V2 4. Load pressure from C1 to V3 As the cylinders in any circuit move, there is a natural...

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Special Purpose Valve section of CV9 Catalog - 5

Special Purpose Valves Standard Specifications Micro Limit Valves This is a microsize, poppet type, 3 way, normally closed, limit valve. It is primarily designed for momentary contact work that requires very light actuating forces. Therefore, is does not have a 100% seal on the actuating stem. This means that, while the valve is held actuated (and only then), there is a slight bleed to atmosphere • Machined brass bar stock body • Brass internal parts • Buna-N O'Ring seals (-30° to + 250°F) • Plated steel lever arm • Extremely short stroke normally provides sufficient pilot volume. • 3 SCFM...

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Special Purpose Valve section of CV9 Catalog - 6

Special Purpose Valves Standard Specifications Check Valves • Machined brass bar stock • Brass poppet • Buna-N O'Ring seals (-30° to +250° F) • Available with or without spring Model No. (Cracking Pressure) • Viton® O-Ring Seals Model No. (Cracking Pressure) Shuttle Valves • Machined brass bar stock • Light weight Delrin® poppet • Buna-N O'Ring seals Flow rating Cv approx. 0.06 • Viton® O-Ring Seals (for media compatibility); Specify Suffix -V Flow rating Cv approx. 0.34 Specifications subject to change without notice or incurring obligation

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