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DQSV Self-Operated Control Valve
DQSV · Flow control

Self-Operated Control Valve

A self-operated control valve for applications requiring regulation without an external power source. Confirm the controlled variable, operating range and process conditions with DQSV.

SIZE RANGEDN15 ~ DN200
PRESSURE RATINGPN16 / PN25 / PN40
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Confirm the selected configuration and operating limits with DQSV before ordering.

Self-Operated Control Valve specifications
Size RangeDN15 ~ DN200
Pressure RatingPN16 / PN25 / PN40
Working Temperature-29°C ~ 350°C(depending on material)
Body MaterialWCB / CF8 / CF8M / CF3M etc.
Connectionflanged
Flow Characteristicequal percentage / linear(optional)
Leakage ClassANSI Class IV ~ VI(optional)
Control Modeself-operated(no external power source required)

Body and actuation

Self-Operated Control Valve — Self-operated diaphragm actuator · Uses process pressure to maintain the setpoint without external air or electrical power.
Self-operated diaphragm actuator · Uses process pressure to maintain the setpoint without external air or electrical power.
Self-Operated Control Valve — Piston actuator · For higher differential pressures and flow rates with stable response.
Piston actuator · For higher differential pressures and flow rates with stable response.

Regulation options

Self-Operated Control Valve — Self-operated diaphragm (pressure or flow regulation)
Self-operated diaphragm (pressure or flow regulation)
Self-Operated Control Valve — Piston type (high differential pressure)
Piston type (high differential pressure)

Product features

  • Precise regulation

    Stable sealing for frequent cycling or continuous regulation.

  • Stable response

    Critical areas can receive treatments for wear, corrosion and high temperature service.

  • Reliable sealing

    Selection calculations and custom configurations are available for the specified operating conditions.

  • Optimized construction

    Compact construction supports site installation and subsequent maintenance.

  • Application flexibility

    Stable sealing for frequent cycling or continuous regulation.

  • Accessible maintenance

    Critical areas can receive treatments for wear, corrosion and high temperature service.

Construction features

Precise regulation
Modular body, bonnet and sealing assemblies support maintenance and spare part replacement.
Stable response
Wetted parts can be selected for the medium, including stainless steel, alloy steel, fluoropolymer or rubber linings, and hard alloys.
Reliable sealing
Actuation configurations include manual, electric, pneumatic, diaphragm and self-operated options, subject to the selected valve configuration.
Optimized construction
Modular body, bonnet and sealing assemblies support maintenance and spare part replacement.
Application flexibility
Wetted parts can be selected for the medium, including stainless steel, alloy steel, fluoropolymer or rubber linings, and hard alloys.
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