L Type Piston Compressor

The L Type Piston Compressor is a reciprocating compressor developed for petrochemical gas service. Its mechanical arrangement uses an integral machine body, a ductile iron crankshaft and a positive lubrication system for the transmission components. The piston and crosshead are connected by a threaded structure.

The series can be configured for up to two stages of compression. Depending on the selected model and the gas being compressed, the cylinder can operate with oil-free or oil-lubricated arrangements.

What Is Inside the Compressor?

Integral Body Structure

The main body forms the structural base of the compressor. The crankshaft, connecting rod mechanism and other moving components operate within an integrated machine structure.

Ductile Iron Crankshaft

The crankshaft is manufactured from ductile iron and transfers the motor's rotary movement to the reciprocating compression mechanism.

Transmission Lubrication

The lubrication system serves the mechanical components involved in continuous reciprocating operation and forms part of the normal operating system of the compressor.

Piston and Crosshead Connection

A threaded connection is used between the piston and crosshead. This is part of the mechanical arrangement used in the L-type compressor structure and supports the assembly of the reciprocating components.

Basic Design Range

The L Type Piston Compressor is built within the following general design range:

·  Stroke: 180–240 mm

·  Speed: 420–590 r/min

·  Rated piston rod tension: 42–68 kN

·  Rated piston rod load: 42–68 kN

·  Driving power: 75–280 kW

·  Maximum compression stages: 2

·  Main application field: Petrochemical industry

Main Technical Parameters

Where Is the L Type Piston Compressor Used?

Hydrogen Systems

Hydrogen compression requirements can vary according to flow rate, system pressure and downstream process conditions. Compressor selection should be based on the actual hydrogen operating parameters.

Petrochemical Gas Processing

Petroleum gas, light hydrocarbons, rich gas and other process gases may require compression during production, transfer or process treatment.

Nitrogen Compression

Nitrogen can be compressed for industrial process supply and gas transfer applications.

Ethylene and Propylene Systems

The L-type compressor can be considered for process applications involving ethylene or propylene, subject to confirmation of the actual gas composition and operating requirements.

Industrial Gas Facilities

The available capacity and pressure range can also support industrial gas projects requiring a reciprocating compressor configuration.

Manufacturing and Technical Support from Jinding

Jinding has manufactured industrial compressors and acetylene production equipment since 1995.

Its compressor product range includes diaphragm compressors, piston compressors and liquid-driven compressors. The company's production facilities cover machining, assembly, welding, painting, testing and technical development.

For L Type Piston Compressor projects, Jinding can provide support covering equipment selection, technical communication, manufacturing and follow-up service.

Frequently Asked Questions

What gases can be compressed by the L Type Piston Compressor?

The series is intended for gases including hydrogen, nitrogen, petroleum gas, light hydrocarbon gas, ethylene, propylene, rich gas and analytical gas. The final selection should be confirmed according to the actual gas composition and process requirements.

What is the largest capacity shown in the listed models?

The largest nominal volumetric flow in the provided model list is 135 Nm³/min.

Are all models oil-free?

No. Most of the listed models use oil-free cylinder lubrication, while the 4L-65/-0.4-0.7 model is listed with oil lubrication.

Can the compressor accept atmospheric-pressure gas?

Yes. Several listed models use atmospheric pressure as the inlet condition.

Is low-pressure or vacuum suction available?

Yes. The provided range includes low-pressure suction conditions and one model with an inlet pressure of -0.04 MPa(G).

What is the maximum discharge pressure in the listed data?

The highest listed outlet pressure is 4.0 MPa(G).

How many compression stages can the compressor have?

The basic design specification allows for up to two compression stages.

What information is needed for a quotation?

Please provide the gas medium, inlet pressure, inlet temperature, outlet pressure, required gas flow and any special operating requirements.