DELCO 3 Way Pneumatics Control Valves-ZMAQ
3 Way Pneumatic Control Valves consist of three ports connected through passages within a valve body. The valves pressurize and exhaust one outlet port to control a single-acting cylinder, or pilot to another valve. It is suitable for industrial automation and provides an efficient solution for fluid control.
They are widely used for automatic production control system in industrials including chemistry, petroleum, light industry, power station, metallurgy.
DELCO Valves aims to provide our customers the best quality products with the most competitive pricing, on-time delivery and full warranty service.
Model: 3 Way Pneumatic Control Valves
Size Range: 1/2”~12′
Pressure Range: 1.6~6.4Mpa
Material: Stainless Steel 304, 316, 316L or WCB
Description
Introduction to Pneumatic Control Valves:
| Type | Single-seat, double-seat, sleeve | Nominal diameter | DN15-DN300 |
| Nominal pressure | PN16 to PN64 | Connection | Flange, thread, weld (Or other customer specified) |
| Structure | Standard type (-20℃ ~+200℃ ) | Material | 304, 316, 316L, WCB, |
| Cooling type | (-40~450℃ ) | Low-temperature type | (-60℃ ~-196℃ ) |
| Packing | V type PTFE, flexible graphite | Adjustable range | 50:01:00 |
3 Way Pneumatics Control Valves Installation and Maintenance
Important considerations for the installation of 3 Way Pneumatics Control Valves encompass handling, plant conditions, pipework configuration, markings, and noise considerations.
Seat Tightness Of A 3 Way Pneumatic Control Valve
The seat tightness of a 3 way pneumatic control valve is crucial during selection and installation. Inadequate tightness can lead to fluid loss and deterioration of sealing faces, causing premature valve failure.
Three primary factors influence seat tightness: the characteristics of the valve, installation method, and valve operation.
Characteristics Of The Valve
For satisfactory shut-off in a metal-seated valve, flat sealing surfaces with an excellent finish are essential. The disc should articulate on the stem without excessive friction from the guide. Achieving acceptable shut-off typically requires a surface finish of 0.5 μm and a flatness level of two optical light bands. High wear resistance in mating and sealing surfaces extends valve service life.
Unlike regular isolation valves, the closing force acting on the disc in a 3 way pneumatic control valve is relatively small due to minimal pressure difference. Resilient seals may enhance shut-off but are more prone to damage compared to metal seats.
Valve Installation
During installation, seat damage can occur when the valve is initially lifted due to dirt and debris in the system. Flushing the system before installation and mounting the valve in a debris-free location help prevent foreign matter passage.
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