Gardner Denver Pressure Maintenance Valve Internal Fittings QX101284=2605332430 High Quality Spare Parts for air Compressors

Pressure Maintenance Valve Internal Fittings are precision components housed within pressure maintenance valves (such as pressure reducing, sustaining, or relief valves) that directly control their operation. These internal parts work together to sense, modulate, and seal, ensuring accurate pressure control. They are the essential components responsible for converting system pressure changes into mechanical movement for precise regulation.

The core function of these fittings is to enable accurate and reliable pressure control. Their specific purposes include:

• Pressure Sensing: Translating fluid pressure into mechanical force (via diaphragm, piston, or bellows)
• Force Balance: Comparing pressure force against reference force (from a spring) to determine valve position
• Flow Modulation: Precisely adjusting orifice area to control flow and maintain set pressure
• Sealing: Ensuring leak-tight closure when valve is in closed or balanced position
• Stability & Responsiveness: Providing dampening to prevent hunting and ensure smooth operation

The internal fittings form a self-contained feedback loop:

1. Sensing: System pressure acts upon a sensing element (diaphragm or piston)
2. Force Generation: Pressure creates force opposing adjustable spring force
3. Actuation: Force imbalance moves stem and plug assembly
4. Modulation: Plug movement opens/closes flow orifice to correct pressure deviation
5. Resealing: When set pressure is restored, forces re-balance and plug reseats

• Pressure Rating: Matches valve's operating pressure range
• Temperature Rating: Compatible with system's fluid temperature (EPDM up to 100°C, FKM up to 200°C)
• Materials:
  • Metallic: 304/316 Stainless Steel (corrosion resistance), Brass (general use)
  • Elastomeric: Buna-N (general purpose), Viton (FKM) (high temp, oils, chemicals), EPDM (steam, hot water)
• Spring Rate: Precisely calibrated for intended pressure control range
• Orifice Size: Determines flow capacity (Cv) of the valve

These internal fittings are critical in any industry using pressure control valves:

• Water Treatment: Pressure reducing valves (PRVs) and surge anticipation valves
• Oil & Gas: Wellhead control, fuel gas pressure regulation, compressor protection
• HVAC: Controlling water pressure in chilled and heating water systems
• Power Generation: Feedwater control, auxiliary system pressure regulation
• Manufacturing: Process line pressure control, equipment protection
• Irrigation: Mainline and zone control valve operation

• OEM Interchangeability: Engineered as direct replacements for major valve brands (Watts, Cla-Val, Fisher)
• Superior Material Selection: Premium-grade metals and compounds for maximum service life
• Precision Performance: Machined to tight tolerances for minimal droop, creep, and exact set point accuracy
• Complete Service Kits: Convenient repair kits containing all necessary internal fittings
• Technical Expertise: Support team available to diagnose valve issues and identify needed components

To identify the correct internal fittings, you will need:

• Valve Manufacturer:
• Valve Model Number:
• Valve Serial Number (if available):
• Specific Component Needed: (e.g., Diaphragm, Seal Kit, Spring for 100-150 PSI range)
• Fluid Media: (e.g., Potable Water, Natural Gas, Hydraulic Oil)

Ensure your pressure control valves perform with precision and reliability. Maintain optimal system performance with our high-quality internal fittings. Contact our technical team for assistance and a quote.