logo
WEISIDUN · Diaphragm & Piston Compressor Expert

Get Gas Compressor Solution

WEISIDUN Diaphragm Compressor Module
ASME MATERIAL OPTIONS • HIGH PURITY

Hydrogen & Industrial Diaphragm Compressors

✔ ASME-standard materials can be selected for critical components

WEISIDUN Diaphragm Compressors are engineered for hydrogen, nitrogen, oxygen, and other specialty gases. We offer ASME standard material grades upon request — giving you full flexibility to meet project certifications, pressure vessel codes, and high-integrity requirements. Our advanced high-purity diaphragm and membrane compressors provide outstanding sealing performance, near-zero gas leakage, streamlined design, and drastically reduced maintenance costs.

  • ✅ Excellent Sealing Performance
  • ✅ Minimal Gas Leakage (<0.01%)
  • ✅ Simple & Robust Mechanical Design
  • ✅ Very Low Maintenance Costs
  • ✅ 100% Oil-Free / Zero Contamination
View Diaphragm Compressor Details →
🔩 ASME-standard material available (SA-516, SA-182, etc.) 🔹 Hydrogen-ready up to 100 MPa 🔹 24/7 Global Support
WEISIDUN diaphragm compressor for hydrogen and high-purity gases | ASME material options available

*Advanced metal diaphragm technology | Real-time compression animation

WEISIDUN Reciprocating Piston Compressor | Left Image Layout
WEISIDUN reciprocating piston gas compressor for hydrogen, nitrogen, oxygen – industrial high-reliability skid-mounted design

*Multi-stage reciprocating piston technology | Real-time compression cycle

HIGH PRESSURE · RELIABLE COMPRESSION

WEISIDUN Reciprocating Piston Compressor

🔹 Hydrogen, Nitrogen, Oxygen, CO₂ & Industrial Gases

WEISIDUN offers a full range of reciprocating piston compressors suitable for hydrogen, nitrogen, oxygen, CO₂, natural gas, and other industrial gases. Our compressors include helium, ammonia, argon, and carbon monoxide types, engineered for high reliability, efficiency, and long service life.

  • ✅ Oil-free, Low Vibration & Low Noise
  • ✅ Skid-Mounted or Containerized Options
  • ✅ High Efficiency & Long Service Life
  • ✅ Suitable for H₂, N₂, O₂, CO₂, He, NH₃, Argon, CO
View Reciprocating Piston Compressor Details →
🔹 Discharge Pressure up to 1000 bar 🔹 Flow Capacity 1 – 100 m³/min 🔹 API 618 Compliant Options 🔹 24/7 Global Support
WEISIDUN Factory & Manufacturing | Precision Gas Compression
ENGINEERING EXCELLENCE

Inside WEISIDUN Manufacturing & Assembly

Advanced machining, clean assembly, and rigorous testing — every compressor built for the world's most demanding gas applications.

State-of-the-art integrated campus featuring CNC precision machining, automated welding, and a dedicated high-pressure compression testing center.

Our facility produces diaphragm and reciprocating compressors for hydrogen, CNG, CO₂, and specialty gases — fully compliant with ISO 9001:2025, ASME, and API 618 standards.

  • 5‑Axis CNC & Robotic Welding
  • Class 100K Oil‑Free Assembly Cleanroom
  • In‑house Metallurgy & Helium Leak Test Lab
  • Up to 1000 bar Hydrostatic Testing
  • Skid & Containerized Integration Line
350+
Units / Year
>45
Export Countries
Request Virtual Factory Tour →
Industrial gas compressor applications - WEISIDUN
Industrial Gas Compressor Applications
WEISIDUN Compressor Assembly Site
WEISIDUN Compressor Assembly Site
Machining and assembly workshop
Machining & Assembly Workshop
Blue diaphragm compressor assembly by WEISIDUN
Blue Diaphragm Compressor Assembly
Reciprocating piston compressor workshop
Reciprocating Piston Compressor Workshop
ISO 9001:2025 & ASME U-stamp options API 618 compliant designs 24/7 global technical support Short lead times & OEM spares
WEISIDUN Compressor Comparison + Contact Modal

WEISIDUN Technical Support

×

Thank you for your interest in WEISIDUN gas compression solutions.

Our engineering team can help you select the ideal reciprocating piston or diaphragm compressor based on:

  • Gas type & purity requirements
  • Flow rate & discharge pressure
  • Operating environment & budget

Phone / WhatsApp: +86 15190631062

Email: [email protected]

We look forward to assisting you with your compression needs.

TECHNICAL COMPARISON

Reciprocating Piston vs Diaphragm Compressors

Compare gas purity, flow rate, cost, and application scenarios to choose the optimal compression technology for your process.
For high-purity & specialty gases → Diaphragm compressor. For high flow rates, cost-effective solutions & general industry → Reciprocating piston compressor. WEISIDUN delivers both, engineered for reliability.

Reciprocating Piston

High flow · cost-effective · versatile

Core Principle
A piston moves back and forth within a cylinder to compress gas directly. Robust mechanical action, ideal for large volumes.
Gas Purity
Standard oil-lubricated models may cause oil carryover (requires filtration). Oil-free versions available for moderate purity needs.
Flow & Pressure
High flow advantage: single-unit capacity can exceed 100 m³/h. Wide pressure range, suitable for medium to high pressure.
Cost & Maintenance
Mature technology → lower initial investment. Maintenance straightforward; wear parts (piston rings, valves) require periodic replacement.
Typical Applications
Pneumatic power, natural gas transmission, oil refining, large-scale hydrogen production (alkaline electrolyzer outlets).

Diaphragm Compressor

Zero contact · ultra-high purity · leak-tight

Core Principle
Hydraulic oil pushes a metal diaphragm that compresses the gas – achieving “zero-contact” isolation. No contamination, perfect sealing.
Gas Purity
Absolutely oil-free and contaminant-free. Purity can reach 99.999%+ without any post-treatment.
Flow & Pressure
Flow rate typically ≤ 100 m³/h. Excels in ultra-high pressure compression with high pressure ratios (up to 25+). Ideal for hydrogen refueling (70/100 MPa).
Cost & Maintenance
Complex precision structure → higher initial investment. Metal diaphragm consumable; lower operating expenses on gas treatment.
Typical Applications
Hydrogen refueling stations, semiconductor fabs, pharmaceutical/food-grade compression, toxic/corrosive/rare gases.
Need tailored advice? Both technologies available from WEISIDUN – certified for ASME, ISO, and API 618.
Comparison based on industrial gas compression standards | WEISIDUN global engineering
WEISIDUN | Compressor Selection Guide – Five Key Decision Scenarios

WEISIDUN Technical Support

×

Thank you for your interest in WEISIDUN gas compression solutions.

Our engineering team can help you select the ideal reciprocating piston or diaphragm compressor based on:

  • Gas type & purity requirements
  • Flow rate & discharge pressure
  • Operating environment & budget

Phone / WhatsApp: +86 15190631062

Email: [email protected]

We look forward to assisting you with your compression needs.

DECISION FRAMEWORK

How to Choose: Five Key Decision Scenarios

Compare purity, flow, pressure, and budget to select the optimal compressor technology for your application.
Diaphragm compressor for high-purity gases
SCENARIO 01

Compressing hydrogen (flammable, high-purity, or specialty gases)

Primary Choice: Diaphragm Compressor
The “zero-contact” principle ensures 100% protection of the gas from lubricant contamination, a mandatory requirement for hydrogen refueling of fuel cell vehicles. Also ideal for semiconductor manufacturing, pharmaceutical production (e.g., sterile nitrogen), and handling toxic, corrosive, or precious gases.
  • Absolutely oil-free, purity up to 99.999%
  • Ideal for H₂ refueling stations (35MPa/70MPa/100MPa)
  • Semiconductor, pharmaceutical, specialty gas applications
Learn more
Reciprocating piston compressor for high flow applications
SCENARIO 02

High flow rates and continuous production

Primary Choice: Reciprocating Piston Compressor
For high-flow applications (especially above 100 m³/h), its cost-effectiveness, stability, and technological maturity are unmatched. Examples include compressing air or process gases in large chemical plants, natural gas pipeline boosting, and compressing large volumes of hydrogen from alkaline electrolyzers.
  • High flow capacity – exceeds 100 m³/h
  • Cost-efficient for continuous industrial production
  • Oil-free lubrication designs available for moderate purity
Learn more
Budget-friendly reciprocating piston compressor
SCENARIO 03

Limited budget & gas oil content not critical

Primary Choice: Reciprocating Piston Compressor
Typically offers advantages in both initial investment and total cost of ownership. For general compressed air needs like factory pneumatic tools, spray painting, or tire inflation, it is a reliable and economical choice.
  • Lower CAPEX and simplified maintenance
  • Proven reliability for general industrial air compression
  • Mature and widely available technology
Learn more
Diaphragm compressor for ultra-high pressure
SCENARIO 04

Medium-to-low flow with extremely high pressure

Primary Choice: Diaphragm Compressor
Its structure is particularly suited for achieving very high single-stage compression ratios and final pressures. For example, boosting hydrogen from storage pressure (e.g., 20 MPa) to refueling pressure (70 MPa or higher) makes it a core component of hydrogen refueling stations.
  • Ultra-high pressure capability – up to 100 MPa
  • High compression ratio up to 25+
  • Ideal for HRS final stage compression
Learn more
SCENARIO 05

Complex future needs (e.g., hydrogen refueling stations)

Hybrid or Hydraulically Actuated Solutions
Future hydrogen stations may adopt a “hybrid approach” – using a reciprocating compressor for high-flow preliminary compression and a diaphragm compressor for final oil-free, high-pressure compression, balancing efficiency and purity.
Alternative: For small, intermittently operated hydrogen stations, hydraulically actuated reciprocating compressors are an option. Their extremely low piston speed allows for easy and quick seal replacement, making them suitable for low-frequency use.
Learn more
WEISIDUN | Gas Compressor Selection Banner

Welcome to Inquire

Whatsapp Envelope Facebook