2001 Greenfield / Sulzer CNG Compressor – 196 SCFM | 4,500 PSI | Siemens 125 HP Electric Motor

This is a 2001 Greenfield / Sulzer C4U 117 oil-lubricated reciprocating CNG compressor rated for 196.4 SCFM at 4500 PSIG discharge pressure. The unit is driven by a 125 HP Siemens TEFC electric motor and designed for continuous-duty operation in compressed natural gas applications. It includes water-cooled cylinders, integrated multi-bank storage configuration, and a fully wired control panel with local start/stop, pressure control, and temperature monitoring. Performance Specifications: Rated Capacity 196.4 SCFM Discharge Pressure 4500 PSIG Suction Pressure 30 PSIG Flow Rate 180 m³/h (approx. 106 CFM intake) Speed 1250 RPM MAWP 5300 PSI @ 450°F Design Code ASME Section VIII Division 1 Temperature Range –20°F to +450°F Mechanical Configuration: Compressor Type: Oil-lubricated reciprocating multi-stage high-pressure gas compressor Duty Rating: Continuous service 40°C ambient Cylinders and Cooling Water-cooled cylinders and interstage coolers Compressor Block Heavy-duty cast-steel crankcase Drive System Direct-coupled Siemens TEFC induction motor (EPACT Efficiency) Base Frame Integrated welded skid with vibration isolators Electrical Details (Siemens Motor): Type RGZ75D Horsepower 125 HP Voltage 460V Current Draw 145A Speed 1785 RPM Service Factor 1.15 Weight 1,620 lbs NEMA Design B Duty Continuous Bearing Numbers Drive End 90RU083MO / Opposite End 90DG03JP3 System Components & Features: Control Panel Fully wired and integrated control with local start/stop pressure control and temperature monitoring Storage Integration Configured with multi-bank gas storage system, including Low Bank (P7,) Middle Bank (P8), High Bank (P9), and Main Line / Blowdown Tank Compliance NFPA 52 / CNG Station Standard Classified for Electrical Shock and Fire Safety Connection Ports External electrical and process connections per DWG B000-20384-1 and 5000-2960-1 Applications: The Sulzer Burckhardt C4U Natural Gas Compressor Station is engineered for CNG vehicle refueling gas distribution stations, and industrial natural gas recovery systems. Its rugged construction high operating pressure and Siemens EPACT drive motor make it ideal for continuous duty operation in both commercial and utility-scale installations. Key Features: High-pressure CNG compression for fast and efficient gas delivery Heavy-duty Siemens electric motor ensures reliable performance Capable of continuous operation in a wide temperature range Compact, industrial-grade design for durability and long service life Suitable for integration into fueling skids or standalone compressor packages Perfect for CNG vehicle fueling stations, natural gas distribution, gas recovery systems, and industrial facilities requiring dependable high-pressure natural gas compression.

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.