High-pressure diaphragm
FKW diaphragm compressors for purity-sensitive gas duties — FENDY Jinkaiwei (Changshu)
FKW diaphragm compressors for purity-sensitive gas duties · FENDY Jinkaiwei (Changshu)
Datasheet
Product overview
Power: Selected-model input and motor required · Pressure: Actual gas and pressure-cycle selection · Flow: Matched inlet-case capacity required
FKW publishes diaphragm compressors for hydrogen and specialised gases. The diaphragm isolates the process-gas path from drive lubricant. This construction does not purify an incoming gas or justify a universal zero-leakage or purity guarantee. Specify the gas composition, moisture/particle limits and allowable contamination at the actual compressor boundary.
An August 2026 industry-association article sourced from FENDY names GD-500/14-200 in a commissioned hydrogen-filling installation. The source establishes the named model and reported application; it does not provide a complete numerical duty sheet or independently audited performance. No capacity, inlet or outlet rating is decoded from the model's digits.
Choose the offered diaphragm assembly and wetted materials for the actual gas and pressure cycle. Agree cooling, leak-detection and shutdown arrangement, vent/recovery routing, start/stop pattern and access for diaphragm and valve replacement. Request matched capacity, pressure and input at the required inlet cases, together with maintenance intervals and recommended spares.
The public standard-table numerical cells could not be revalidated during this review, so earlier frame-power and stage/pressure figures are not carried forward as verified current specifications. A purchase offer needs its selected model's datasheet and agreed mechanical, tightness and gas-duty test criteria. The full original category photograph is not identified as GD-500/14-200.
| Catalog reference | FKW-DIAPHRAGM |
|---|---|
| Machine | High-pressure diaphragm |
| Power | Selected-model input and motor required |
| Working pressure | Actual gas and pressure-cycle selection |
| Published flow | Matched inlet-case capacity required |
| Air quality | — |
| Duty | Energy / gas |
| Supply | Not specified |
| Plant | FENDY Jinkaiwei (Changshu) |
| Mechanism | Diaphragm separates process-gas path from drive lubricant |
| Named reported model | GD-500/14-200;manufacturer-sourced association article August2026 |
| Model-code numbers | Not decoded into ratings |
| Current selected ratings | Model-specific datasheet required;unrevalidated standard-table cells omitted |
| Gas quality | Inlet analysis and allowable contamination required;not gas purification |
| Protection | Agree leak detection,vent recovery,cooling and shutdowns |
| Service | Diaphragm/valve access,intervals and spares to agree |
Plant
FENDY Jinkaiwei (Changshu)
Suzhou
The plant remains the seller. This desk issues the English duty sheet so quotes are comparable across clusters.
- FKW-PISTON · 75–5600 kW frame motor ceilings
- FKW-HRS · 30–200 or 30–185 kW motor bands
Specification pages
Specifying a High-pressure diaphragm duty
| Duty | Write on the RFQ |
|---|---|
| Compressor for PET bottle blowing | Bottle blowing is a high-pressure oil-free process. The blower OEM’s pressure and the cavity count size the compressor, not the word PET. |
| 30 bar oil-free compressor | Specify whether 30 bar is gauge or absolute pressure, where it is required and how much air must be supplied at that point. A 30 bar working duty does not, by itself, identify a compressor architecture, motor size or air-quality class. |
| 40 bar PET compressor | PET blowing at 40 bar(g) is a high-pressure oil-free duty. Cavities, bottle volume and recovery pressure size the skid — not the word “PET compressor”. |
Same type
Related High-pressure diaphragm products
Compare the published product information for each manufacturer.
| Catalog ref. | Type | Power | Pressure | Flow | Air quality | Plant | |
|---|---|---|---|---|---|---|---|
 UNIGY-PET-OILFREEUNIGY oil-free reciprocating PET air and booster packages
|
PET / HP | Exact selected motor / package input | 0.7–5.0 MPa — published envelope | 0.1–20 m³/min — reference required | — | UNIGY — Luoyang industrial gas compressors | RFQ |
 DMG-DOLPHINDMG Dolphin water-lubricated screw / piston PET systems
|
PET / HP | OGV-6:67 kW installed /60 kW shaft | Selected table duties:4.0 MPa | OGV-6:6.0 Nm³/min; normal reference to agree | — | DMG | RFQ |
 ZDHS-G0-G2Zhongding G0–G2 diaphragm compressors for compact and process-gas duties
|
PET / HP | — | — | — | — | Zhongding | RFQ |
| BAODE-LASERB&D BD-TK laser-cutting air packages, pressure-specific variants | PET / HP | 15 / 22 kW · selected detail rows | 1.5 / 2.5 / 3 MPa · selected variant | BD-PM22TK: 0.88–2.2 m³/min · 1.5 MPa version | — | B&D | RFQ |
 CMN-CMGPVCMN CM/GPV medium-pressure oil-free screw — dual-drive configurations
|
PET / HP | Dual drives — preserve separate motor cells | Configuration bands2.0–3.0 or2.0–4.0 MPa | CM130GPV:5.4–13.5 or4.0–10.2 m³/min;bands differ | — | CMN | RFQ |
 DMG-EAGLEDMG Eagle four-stage screw / piston PET systems
|
PET / HP | 16 Nm³/min models:145 installed /131 shaft kW | Selected table duties:4.0 MPa | LGV2/LGW2 points:6–30 Nm³/min | — | DMG | RFQ |
Product information
Information reviewed 2026-10-08. Specifications apply only to the models and conditions stated.
FKW-DIAPHRAGM: Voltage and frequency matter as much as bar. State both. Include the required operating conditions with your enquiry.
Issue RFQ