Ma'anshan · Anhui · Process and station compression
Procomp · define the architecture and the package builder's scope
Procomp Energy Machinery (Ma'anshan) Co., Ltd. (普康能源机械(马鞍山)有限公司) develops, manufactures and sells special process-gas compressors, oilfield injection equipment and hydrogen/natural-gas station equipment.
The company describes KwangShin piston and Sullivan-Palatek screw technology cooperation and Tangsun Group's sales/service background. Confirm the actual frame/airend supplier, package builder and responsibility boundaries for the project; the history does not assign the same components to every package.

PCOPT versus PCVG
Balanced-opposed and vertical labyrinth answer different selection questions

PCOPT · balanced-opposed process piston
| Normal-volume flow | 500–100,000 Nm³/h |
|---|---|
| Discharge pressure | 2–1000 bar |
| Power | 75–4000 kW |
Agree frame/cylinder/stage selection, gas composition, suction conditions, rod loads, sealing and capacity control for the actual duty.

PCVG · vertical non-contact labyrinth
| Normal-volume flow | 500–20,000 Nm³/h |
|---|---|
| Discharge pressure | 2–50 bar |
| Power | 150–1600 kW |
The catalogue describes non-contact labyrinth piston structure. Select gas compatibility, stage arrangement and sealing/monitoring for the process.
Airend selection and complete-system selection
Match the screw series to the gas and treatment route

Named airend catalogue references
| SP13 Oil-injected | 3–10 m³/min 130 mm screw diameter Inlet: -0.1 to 3 bar Discharge: below 17.2 bar |
|---|---|
| SP20 Oil-injected | 15–36 m³/min 204 mm screw diameter Inlet: -0.1 to 3 bar Discharge: below 17.2 bar |
| SPOF1207 Dry oil-free | 5.8–11.8 m³/min Inlet: -0.1 to 3 bar Discharge: below 12 bar |
The chart uses inlet-volume flow. It is not automatically FAD or Nm³/min. Confirm actual gas, inlet temperature, speed, pressure basis and selected-duty power; the airend chart does not define a complete package motor.
Natural gas · varying suction and combined control
Procomp describes variable-inlet operation and coordination with piston compressors or other equipment. Define the actual suction range and combined-system interfaces, control logic, capacity range and package input at the required loads.
Flue gas · moisture, corrosion and pretreatment
The specific route describes refrigerated plus adsorption drying, acid-resistant coating/sealing, blower/screw matching and an air-cooled skid. Supply composition, temperature, moisture and contaminants; agree material compatibility, condensate/disposal and downstream dew point.
Three separate duties
Hydrogen stations, CNG stations and oilfield injection need different briefs

Hydrogen station
Specify supply cycle, inlet conditions, purity/contaminants and throughput, with storage and dispensing/control interfaces. Agree materials, sealing, leak monitoring and hazardous-area scope. No preset flow or station pressure is assigned from an application name.

Natural-gas / CNG station
Provide gas quality, supply-pressure variation, peak/daily demand, storage layout and discharge requirement. Agree cooling, lubrication/separation and controls for the selected station; it is a separate gas duty from hydrogen.
Turn the process requirement into a reviewable offer
- Gas and operating points
- Composition, contaminants, suction pressure/temperature envelope, discharge requirement and pressure basis, reference flow, operating hours and load/filling profile.
- Machine and package boundary
- Named frame/cylinders/stages or airend; compressor and drive suppliers, package builder, lubrication/sealing, coolers/separators/dryers, instruments and customer-supplied works.
- Engineering and acceptance
- Stage-by-stage duty sheets, P&ID, layout/foundation, materials and protections, controls/shutdown integration, standard editions/deviations, inspection/test conditions and total-package input.
- Parts and destination support
- Current wear-part lists and traceability, actual stock/delivery, commissioning/training and destination service responsibility. The company describes parts warehouses in Ma'anshan and Kunshan; confirm the project arrangements.
The national standards platform names Procomp as a drafting organization for the Process compressors—Technical requirements plan 20256140-T-604. That record establishes participation, not a product certification.
Prepare Procomp gas-duty RFQProcomp purchase questions
Can PCOPT's highest flow and pressure be ordered as one point?
The chart gives separate family limits. Obtain a named frame/cylinder/stage selection at your actual gas, inlet conditions and required discharge/flow.
Is screw inlet-volume flow the same as FAD?
Keep its stated inlet-volume basis. Obtain the actual gas and reference conditions before comparing it with normal-volume flow or free-air delivery.
Does API wording establish certification for every package?
Agree the applicable standard edition, manufacturer/reference scope, requirements, test/inspection coverage and deviations for the offered configuration.
Is 35–50 MPa a Procomp hydrogen-station rating?
It describes the separate nitrogen-injection route. Hydrogen and CNG stations require their own named duty sheet, supply cycle and storage/control review.