Quick-fitting Type Mechanical Valve. Mechanical Valve

Transcription

1 Quick-fitting Type Mechanical Valve Mechanical Valve eatures This push-type valve turns on and off the input of air pressure. The operating force is not affected by strength of pressure owing to the spool valve mechanism. The valve has three ports to exhaust the residual pressure on the output side (equipment) when closed and two ports that have no exhaust function. onstruction spool Resin body (Polybutylene telephthalate) Insert ring Push pin (polyacetal) lat O-ring (nitrile rubber) Tube Guide lastic sleeve (nitrile rubber) Seal ring Specification Spring holder luid admitted Service pressure range Working vacuum ubrication Tube Release ring (polyacetal) ock claw (stainless steel) Spring (piano wire) *lack in normal-close type, ivory in normal-open type. Air 0~100psi 0~0.7MPa 2~10 0~0 ISO VG2 (Turbine oil class 1) Designation (xample) (1) (2) () A () R (5) () (7) (1)Type : Micro Switch Type : Panel Mount Type MVU : Air Switch MV : oot Switch (2)Tube Dia. ode Size φmm ()No. of ports ode No. of port 2 2 φmm ()Standby position No code : Nomally closed (Release ring is black) A : Normally open (Release ring is ivory) *Only normally close type in and MVU. 1/8 φ1/8in. 5/2 φ5/2in. (5)Operation system No code : pin R : Roller lever *Pin only in MVU. ()xhaust Mode (only -way valves) No code : Open to atmosphere via silencer : oncertrated exhaust via fitting (7)Hexagon flat-to-flat specification U: Hexagon flat-to-flat inch spec. (NPT) No code: Hexagon flat-to-flat mm spec. Application example spool P port A port xhaust port P port A port xhaust port In case of Three-Way, Normally Open type, the compressed air entered from P port flows to A port. While the spool is pushed down, the air inlet is blocked and the residual pressurized air is released from the exhaust port (open to air type or concentrated exhaust type). *Three-Way, Normally losed type works contrary to Normally Open type. 292

2 Stroke Dimensions for Pin Type S φ φ S S S Microswitch Pin Type A A ff. a φ φ. 1 2 Microswitch Pin Type (oncentrated xhaust) A- - A ff. a φ. Stroke Dimensions for Roller Type S φ φ S S S 29

3 1 2 Microswitch Roller Type 2 φ R A-R -R A-R ff. a φ φ. Microswitch Roller Type (oncentrated xhaust) φ9 7 -R A-R -R A-R ff. a φ. Stroke Dimensions for Pin Type S S φ φ S S.. Panel Mount Type Pin Type H1 2 2 max min ff. a φ

4 Panel Mount Pin Type (oncentrated xhaust) H1 ff. a φ Stroke Dimensions for Roller Type S S φ φ S S Stroke Dimensions were measured for the product mounted on -mm plate. Dimensions vary when the thickness of the plate changes Panel Mount Roller Type φ R -R 2-R -R -H1 max min ff. a Panel Mount Roller Type (oncentrated xhaust) 1.5 φ H1 -R -R ff. a

5 MVU Air Switch 2-φ. 2-1 (stroke) φ8 MVU 2 MVU MVU 2 MVU ff. a Main body is Ivory color. Release ring is black MV oot Switch φ MV MV ff. a MV uses or A. MV uses or A. 297

6 ! Detailed Safely Instruction efore using the PISO device, be sure to read the "Safety Instructions","ommon Safety Instructions for Products isted in This Manual" on page 2~2 and "ommon Safety Instructions for hange Series Valves" on page 279.! Warning 1. Do not allow any load beyond the limit stroke to bear on the push pin or roller by maschine operation. Otherwise damage to the body may result. 2. Do not use the valve with cam and dog whose operation involves steep leading and trailing edges. Impacts may inflict damage to the device body.. Do not carry out the air switch or foot switch type of operation by a machine. Such an operation may damage the device body.. In applications that require high level of reliability, make certain that the mechanical valve operates properly at start-up. 5. Do not subject the product with a rotary resin body to forcible swinging or rotation. Otherwise the body may suffer damage or develop leakage.. Do not use the valve in locations where it can be exposed to water drops, oil drops, dust, etc. The valve is neither drip-proof nor dustproof, so that malfunction may result ! aution onsult PISO about applications involving frequent operations. onfirm the number of ports and the conduction system by checking the marking on the body. With the microswitch or the panel mounting type, the effective sectional area may change with the stroke. Insufficient stroke may cause low flow rate. With the air switch or the foot switch type, push the button or the top lid of the case completely until it stops. ailure to do so may result in poor conduction or low flow rate due to faulty switching. 29