Gardner Denver Regulating Valve 2009398 for Air Compressor Parts
Brand Name:Gardner Denver
Model Number:2009398
Minimum Order Quantity:1
Delivery Time:15-20 work days
Payment Terms:T/T
Place of Origin:China
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Lianyungang Jiangsu China
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1st-2nd floor, west side of Building 6, Chengbei Science and Technology Park, Guanyun County, Lianyungang City, Jiangsu Province China
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Product Details
Product Introduction: Regulating Valve
1. What is a Regulating Valve?
A Regulating Valve is a broad category of control valves 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 a set parameter remains constant despite fluctuations in upstream or downstream conditions.
They are the fundamental components for achieving stability, efficiency, and precision in industrial processes.
2. Key Functions & Purposes
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 (e.g., steam, coolant) to maintain a set temperature.
Differential Pressure Control: Maintains a constant pressure difference between two points in a system.
3. How It Works (Operating Principle)
Most regulating valves operate on a simple principle of balance-of-forces:
Sensing: An internal mechanism (e.g., a diaphragm, piston, or bellow) senses the process variable (pressure, flow).
Comparison: The force generated by this sensed variable is compared against the force of a pre-set reference spring.
Actuation: Any imbalance between these forces causes the actuator to move.
Modulation: This movement adjusts the position of a plug, poppet, or globe within the valve, changing the flow area.
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.
4. Key Features & Benefits
| Feature | Benefit |
|---|---|
| Self-Contained Operation | No external electricity or air supply required for basic models, reducing complexity and cost. |
| Precise Control | Maintains process parameters within a tight tolerance, improving product quality and system efficiency. |
| Stability & Responsiveness | Internally balanced designs and optimized sensing provide fast response to system disturbances. |
| ** Rugged Construction** | Built with robust materials (cast iron, carbon steel, stainless steel) to handle high pressures, temperatures, and demanding fluids. |
| Flexible Application | Available in a wide range of types, sizes, and trim materials to suit virtually any process need. |
| Energy & Cost Savings | Prevents overuse of steam, water, gas, or other media, reducing utility costs and waste. |
5. Common Types of Regulating Valves
| Valve Type | Primary Function | Typical Application |
|---|---|---|
| Pressure Reducing Valve (PRV) | Lowers and controls downstream pressure. | Steam lines, compressed air systems, water supply lines. |
| Back Pressure Regulator | Maintains upstream pressure. | Pump protection, reactor vessel control, boiler systems. |
| Flow Control Valve | Maintains a constant flow rate. | Chemical dosing, irrigation, cooling water circuits. |
| Temperature Regulator | Controls temperature by modulating flow. | Heat exchangers, jacketed vessels, building heating systems. |
| Differential Pressure Valve | Maintains a set ΔP between two points. | HVAC system balancing, filter bypass protection. |
6. Technical Specifications (Typical Range)
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
7. Industries & Applications
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.
8. Why Choose Our Regulating Valves?
(This section is for your specific value proposition. Example text below:)
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.
9. Ordering Information
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.
Gardner Denver Regulating Valve 2009398 for Air Compressor Parts
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