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YUEQING BETRE AUTOMATION CO.,LTD. Add:Baishi Industrial, Yueqing, Zhejiang, CN Contact Person: Betre H Tel:+86-577-61712130 Fax:+86-577-61712160 Email:betre@betre.cc MSN:betreauto@hotmail.com SKYPE:betreauto
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Air Valve Manual Valves (Lever Type Valves) Series TAC
Air Valve Manual Valves (Lever Type Valves) Series TAC
Air Valve Manual Valves (Lever Type Valves)
Series TAC
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Specification
Major parts and materials
Series TAC
Specification
| Model | 3V | 3VR | 4V | 4VR | 4PPX | ||||||||
| Operation type | Pinned lever | Push-pull button holding type | |||||||||||
| Holding type | Spring return type | Holding type | Spring return type | ||||||||||
| Number of ports | 3 | 3(Normally closed) | 5 | ||||||||||
| Port size | M5×0.8 | ||||||||||||
| Media | Air | ||||||||||||
| Operating pressure range | 0~0.9MPa (0~9.2kgf/cm²) (0~131psi.) | ||||||||||||
| Proof pressure | 1.35MPa (13.8kgf/cm²) (196psi.) | ||||||||||||
| Operating temperature range (atmosphere and media) | 0~60℃ (32~140℉) | ||||||||||||
| Effective area | 1.8mm² | 2.5mm² | |||||||||||
| Flow coefficient | 0.08Cv | 0.12Cv | |||||||||||
| Mounting direction | Any | ||||||||||||
| Valve stroke | 2.4mm(0.094in.)[Pre-stroke:0.8mm(0.031in.)Main stroke:0.8mm(0.031in.) Over stroke:0.8mm(0.031in.)] | ||||||||||||
| Lubrication | Required {Turbine Oil Class 1 [ISO VG32] or equivalent} | ||||||||||||
| Mass g [oz.] | 30g(1.06oz.) | 66g(2.33oz.) | 68g(2.40oz.) | ||||||||||
| Standard accessories | Lock nut (110-21A) | 1 pc. each | |||||||||||
| Lock washer (100-35) | |||||||||||||
Major parts and materials
Body .................... Brass (nickel plated)
Stem .............................. Stainless steel
O-ring......................... Synthetic rubber
Dimensions
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Circuit example
Circuit diagrams
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Explanation of operation
Actuation of valve A (3P) extends the rod of cylinder D, which then retracts and stops. It is often used for reliable reciprocating operation.
[Detailed explanation of operations]
1. Pressing valve A supplies air to the pilot operator (34A) on the right portion of valve B (4PP), which then switches valve B.
2. As a result, the air previously filled in the rod side (left side) of the cylinder is exhausted from R2 of valve B. At the same time, air entering the cylinder head side (right side), extends the cylinder rod forward.
3. At this time, when the air passes through the speed controller (SCOF) to enter the cylinder, it opens the check valve inside the SCO-F and quickly fills in. For exhaust, however, the air is choked and the cylinder rod extends while decelerating.
4. When the cylinder rod extends to push against valve C, air is applied to the air pilot operator (34A) on the left portion of valve B, restoring valve B to its normal position, and then returnig the cylinder rod back.
