Pneumatic Multi-hole Low Noise Control Valve

Pneumatic Multi-hole Low Noise Control Valve

Pneumatic Multi-hole Low Noise Control Valve adopts the sleeve guided structure and pressure balanced plug. It is a high performance control valve with good dynamic stability that is suitable for severe service conditions. As the differential is relatively high and the flow velocity of medium is high, the trims will be severely eroded and damaged and high noise will be produced. Therefore, we change the standard window-type sleeve in to the multi-hole sleeve. For liquids, the flow direction is generally high-in and low-out, and multi-hole throttling makes the medium carry out collision inside the sleeve, so as to consume internal energy and reduce flow velocity. For gas and media, the flow direction is generally low-in and high-out, so that the gas medium achieve volume expansion at the back of the seat after throttling by the multi-hole sleeve and the pressure of medium is reduced to lower the flow velocity. The parts of this type control valve are interchangeable with those of the HSC Cage Type Single Seat Control Valve except that the sleeve is changed into the multi-hole type.

Specifications of Pneumatic Multi-hole Low Noise Control Valve

Trim Features:    Sleeve Guided Type, Balanced Trim Structure, With balanced seal ring structure

Body Type:       Straight-Through Type, Angle Type

Bonnet Type:     Standard Type, Heat Dissipation Type ( Or say Heat Radiation Type), Cryogenic Type, Bellow Type

Flow Characteristic:  Equal Percentage, Linear, Quick Open

Shut-Off Class:     ASME B16.104 V (Standard Metal Seat),

                                 ASME B16.104 VI( Shut-off Soft Seat)

Pipe Connection Type: Flange Type, Butt welding Type

Applicable Temperature Range: -196°C -  570 °C ( Double-Seat Structure),

                                                        -30°C—260°C( Single-Seat Structure)

Actuator Type:    Pneumatic Diaphragm Actuator,

                             Pneumatic Piston Actuator,

                             Electric Actuator.