Universal CNG Compressor, 40 HP, Flow Rate 57 SCFM, Inlet 7 psi to 5000 psi

This is a four-stage reciprocating natural gas compressor built on the W120H-AL air-cooled compressor block, designed to deliver up to 5,000 PSI discharge pressure for CNG applications, gas recovery systems, and industrial gas compression. The unit is rated for 57.7 CFM at 1,200 RPM with an inlet pressure range of 0–7 PSI. It was decommissioned in 2022 after operating normally except that it would not compress above 2,000 PSI; the third stage requires maintenance or repair. Specifications: Job Number: 20111308 Serial Number: 8003578 Compressor Type: URGT120-40NG / C3 Compressor Block Number: H21191001 Configuration: W120H-AL, air-cooled, reciprocating Number of Compression Stages: Four Inlet Pressure Range: 0–7 PSI (1 bar.g) Delivery Pressure Range: 700–5,000 PSI (100–414 bar.g) Direction of Rotation: Counterclockwise (viewed from drive end) Operating Speed Range: 600–1,200 RPM Displacement: 98.1 m³/hr @ 1200 RPM (≈57.7 CFM @ 1200 RPM) Safety Valve Settings: 1st Stage: 10.0 bar.g (145 PSIG) 2nd Stage: 37.2 bar.g (540 PSIG) 3rd Stage: 161.5 bar.g (2,342 PSIG) Final Stage: 10% above working pressure Lubrication System: Force-feed lubrication to crankshaft bearings Controlled splash lubrication to cylinders Crankshaft-driven oil pump with full-flow replaceable canister oil filter Dimensions & Weight: Length: 1,053 mm (41.5 in) Width: 1,074 mm (42.3 in) Height: 1,008.5 mm (39.7 in) Dry Weight: 365 kg (805 lbs) Design Highlights: The W120H-AL compressor features a “W” form with three cylinders: one double-acting low-pressure piston for stages 1 and 2, and single-acting cylinders for stages 3 and 4. It uses a pedestal-mounted cooling fan that pulls air through the aftercooler/intercooler assembly, maintaining optimal temperatures. Stage-specific relief valves protect the compressor from over-pressure conditions. Condition: The unit was decommissioned in 2022. It was operational but would not compress above 2,000 PSI. The third stage requires maintenance/repair. Applications: Ideal for CNG refueling stations, natural gas processing, high-pressure gas transfer, and industrial gas systems where a multi-stage air-cooled reciprocating compressor is required. We have all the manuals and schematics for the unit.

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.