Masoneilan 3" Model 88U-25125 Diaphragm Control Valve | 1" Body | 150 ANSI | SVI-2 Valve Positioner | Air Filter Regulator
UsedSpecifications
Description
Masoneilan 3" Model 88U-25125 Diaphragm Control Valve | 1" Body | 150 ANSI | SVI-2 Valve Positioner | Air Filter Regulator
This is a Masoneilan Model 88U-25125 diaphragm control valve with a 1-inch body size, 150 ANSI pressure rating, and 316 SS construction. The assembly includes a Masoneilan SVI-2 valve positioner (100 PSI, 30 Volt, Model 80-12) and a Masoneilan 78-40 air filter regulator (NEW H14). The valve is configured for precise flow modulation in industrial process control applications.
Technical Specifications
Manufacturer: Masoneilan
Model: 88U-25125
Body Size: 1"
Pressure Rating: 150 ANSI
Air Filter Regulator: Masoneilan 78-40 (NEW H14)
Valve Positioner: Masoneilan SVI-2
Positioner Specs: 100 PSI | 30 Volt | Model 80-12
This valve assembly is ideal for oil & gas facilities, petrochemical plants, power generation systems, and other industrial process control applications requiring precise modulation and dependable performance.
Condition: Pre-owned valve assembly. Recommended to be inspected and serviced before commissioning for best results.
Inspection, shipping & payment
Terms set by Gas Equipment 4 Sale.
Price on Request
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Seller
Gas Equipment 4 Sale
Waxahachie, TX, United States
Business and location confirmed by Metal Mountain.
Questions buyers ask
What pressure, flow and temperature is it rated for?
This valve has a 150 ANSI pressure rating with a 1-inch body size. Flow capacity (Cv) and temperature rating are not provided in the listing; you'll need to request the valve's specific trim configuration and material specifications from the seller to determine those parameters. Masoneilan 88U series valves typically have temperature limits that depend on the diaphragm and seal materials installed.
What materials are the wetted parts?
The body is constructed of 316 stainless steel. The listing does not specify materials for the trim, diaphragm, seats, or seals. You should request detailed material certifications from the seller, particularly for the diaphragm and trim components, as these determine chemical compatibility and service limits.
What should I inspect before putting it into service?
The seller recommends inspection and service before commissioning. At minimum, inspect the diaphragm for cracks or degradation, verify the SVI-2 positioner calibration and response, check the stem packing for leaks, and examine all seating surfaces for erosion or damage. Bench-test the complete assembly to confirm stroke, linearity, and proper air signal response across the operating range before installing in a process line.
General guidance for this type of equipment. Ask about this specific unit in your inquiry — the seller answers directly.