Gardner Denver Regulating Valve 2009398 for Air Compressor Parts

A Regulating Valve is a control valve designed to automatically manage and maintain specific process variables such as pressure, flow rate, temperature, or liquid level within a fluid system. Unlike simple on/off valves, regulating valves modulate the flow passage to ensure set parameters remain constant despite fluctuations in upstream or downstream conditions. These valves are fundamental components for achieving stability, efficiency, and precision in industrial processes.

The primary function of a regulating valve is automatic control. The specific type of regulation depends on the valve's design and application:

• Pressure Reducing: Maintains a constant, lower downstream pressure regardless of higher, fluctuating upstream pressure.
• Pressure Sustaining / Backpressure: Maintains a constant minimum upstream pressure by restricting flow to build pressure.
• Flow Control: Maintains a constant flow rate through a line despite changing system pressures.
• Temperature Control: Modulates flow of a heating or cooling medium to maintain a set temperature.
• Differential Pressure Control: Maintains a constant pressure difference between two points in a system.

Most regulating valves operate on a simple principle of balance-of-forces:

1. Sensing: An internal mechanism senses the process variable (pressure, flow).
2. Comparison: The force generated by this sensed variable is compared against the force of a pre-set reference spring.
3. Actuation: Any imbalance between these forces causes the actuator to move.
4. Modulation: This movement adjusts the position of a plug, poppet, or globe within the valve, changing the flow area.
5. Correction: The change in flow corrects the process variable, re-establishing the force balance and stabilizing the system.

This creates a continuous, self-contained feedback loop that requires no external power, making many regulating valves self-operating.

• Size Range: 1/4" to 16" (DN8 to DN400)
• Pressure Rating: Vacuum to 10,000 PSI (ANSI 150 to 2500 Class)
• Temperature Range: -20°F to 1000°F (-30°C to 540°C)
• Connection Types: Threaded (NPT, BSP), Flanged (ANSI, DIN), Socket Weld, Butt Weld
• Body Materials: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel (304, 316), Bronze, Alloy 20
• Trim Materials: Stainless Steel, Hastelloy, Stellite, PTFE

Regulating valves are ubiquitous across all process industries:

• Oil & Gas: Wellhead control, fuel gas pressure reduction, compressor anti-surge.
• Power Generation: Steam pressure control, feedwater regulation, condenser level control.
• Chemical Processing: Precise dosing, reactor pressure control, additive injection.
• Water & Wastewater: Pump discharge control, filter backwash, system pressure management.
• HVAC: Building heating/cooling systems, district energy, chiller plant control.
• Pharmaceutical & Food & Beverage: Sanitary process control, CIP (Clean-in-Place) systems.

• Proven Reliability: Our valves are engineered for long service life with minimal maintenance, even in the most demanding environments.
• Precision Engineering: Advanced modeling and machining ensure accurate control, tight shut-off, and repeatable performance.
• Ease of Maintenance: In-line serviceable designs and readily available maintenance kits minimize downtime and repair costs.
• Global Technical Support: Our team of application engineers provides expert support to help you select, install, and maintain the perfect valve for your specific need.
• Custom Solutions: We offer custom trim materials, special connections, and tailored pressure ranges to meet unique application challenges.

To select the correct regulating valve, please provide:

• Fluid Media: (e.g., Saturated Steam, Natural Gas, Caustic Solution)
• Function: (Pressure Reducing, Backpressure, Flow Control, etc.)
• Set Point: (Desired pressure, flow, or temperature to maintain)
• Flow Capacity: (Max/Min Flow Rate in GPM, SCFM, or lb/hr)
• Pressures: (Upstream & Downstream, or Inlet/Outlet)
• Temperature: (Operating Temperature)
• Material Requirements: (Based on fluid compatibility)
• Connection Type & Size:

Contact our engineering team today for a personalized recommendation and quotation.