Masoneilan 3" Model 88U-25125 Diaphragm Control Valve | 1" Body | 300 ANSI | Air Filter Regulator | Needs Re-Service

Used

Specifications

ManufacturerMasoneilan

Model88U-25125

ConditionUsed

Body Size1"

Pressure Rating300 ANSI

Actuator Size3"

Gas ServiceCompressed Air, Natural Gas, Air

LocationWaxahachie, TX, United States

Stock #GE4S-1047

Description

Masoneilan 3" Model 88U-25125 Diaphragm Control Valve | 1" Body | 300 ANSI | Air Filter Regulator | Needs Re-Service

Masoneilan 88U-25125 diaphragm control valve with 3" actuator and 1" body, rated 300 ANSI. Includes a Masoneilan 78-40 air filter regulator (NEW H14) for instrument air conditioning. This unit is used and requires re-service before installation to ensure proper calibration and operation.

Technical Specifications

Manufacturer: Masoneilan

Valve Model: 88U-25125

Body Size: 1"

Pressure Rating: 300 ANSI

Air Filter Regulator: Masoneilan 78-40 (NEW H14)

This diaphragm control valve is ideal for oil & gas, chemical processing, power generation, and industrial process control systems where accurate flow modulation is critical under high-pressure conditions.

Condition

Pre-owned unit — must be re-serviced before use to ensure proper calibration and reliable operation.

Inspection, shipping & payment

Inspection Pre-purchase inspections are welcome during normal business hours by appointment arranged in advance. We can provide complimentary transportation from DFW Airport and back if you would like to send someone to see the equipment in person. We can also walk through the item over a video call for domestic or international buyers. We are on US Central Time. Shipping and loading The equipment is located at our yard south of Dallas, Texas. We can assist with shipping arrangements. Loading is provided at no charge for equipment under 15,000 lb when scheduled in advance. Equipment over 15,000 lb requires a crane, which is arranged and paid for by the buyer. Payment Payment in full is required FOB our yard in South Dallas. A verifiable cashier's check is accepted for collection in person. For release to a third-party shipper we require a wire transfer cleared in our account before the equipment leaves the yard.

Terms set by Gas Equipment 4 Sale.

Price on Request

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LocationWaxahachie, TX, United States

Stock #GE4S-1047

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Seller

Gas Equipment 4 Sale

Waxahachie, TX, United States

Verified

Business and location confirmed by Metal Mountain.

Questions buyers ask

What pressure, flow and temperature is it rated for?

This valve body is rated 300 ANSI. Flow capacity (Cv) and temperature range are not specified in the listing; you'll need to request the nameplate data or original documentation from the seller to confirm these ratings for your process conditions. Diaphragm control valves in this class typically handle temperatures up to 300°F depending on diaphragm material, but that must be verified for this specific unit.

What should I inspect before putting it into service?

The listing states this unit requires re-service before use. At minimum, inspect the diaphragm for cracks or degradation, verify the seat and plug aren't scored or eroded, confirm the actuator spring and stem move freely without binding, and leak-test all pressure boundaries. Bench-test the positioner calibration and stroke response across the full signal range, and verify the 78-40 air filter regulator delivers clean, dry instrument air at the required pressure.

General guidance for this type of equipment. Ask about this specific unit in your inquiry — the seller answers directly.

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