XD-11/35-250
Average 1200 Nm³/h
75 kW · 740 rpm
Approx. 8500 kg
Zigong
Zigong Tongda: mother, standard and daughter-station CNG duties
Match the gas-supply route, paired inlet conditions and actual station scope before comparing packages.
ZIGONG · SICHUAN · RECIPROCATING GAS EQUIPMENT
Begin with the station’s gas-supply route
自贡通达机器制造有限公司 states establishment in 1997 and a business in reciprocating gas-compressor design and manufacture. A historical issuer disclosure records 2 September 1997 and natural-gas compressor/CNG, LNG and LCNG station-equipment manufacture and installation.
Tongda describes mechanical L, D and M families, hydraulic reciprocating equipment and broader process-gas tasks. It also appears under the same legal name in the compressor association’s company shop. Catalogue scope and historic corporate records are distinct from the delivered machine’s technical acceptance.
M-TYPE · FOUR-ROW SYMMETRICAL BALANCED MECHANISM
Use the selected row’s inlet pressure, stroke and stages
Tongda describes cranks arranged at 90° and whole-skid packaging for large CNG mother stations and other process duties. The original page’s selected rows are more useful than combining its family maxima.
| Model | Inlet / normal flow | Motor | Speed / stroke / stages |
|---|---|---|---|
| M-9.5/1-250 | 0.10 MPa · 1000 Nm³/h | 250 kW | 740 rpm · 140 mm · 5 |
| M-9.5/1.5-250 | 0.15 MPa · 1200 Nm³/h | 315 kW | 740 rpm · 140 mm · 5 |
| M-9.5/2-250 | 0.20 MPa · 1500 Nm³/h | 355 kW | 740 rpm · 140 mm · 5 |
| M-14.5/2.5-250 | 0.25 MPa · 2800 Nm³/h | 710 kW | 740 rpm · 160 mm · 4 |
Resolve the low-inlet scope in the offer
The summary starts at 0.2 MPa inlet; the original table includes 0.10 and 0.15 MPa rows. Confirm the actual offered envelope and performance rather than silently merging the two descriptions.
The header’s 10000 Nm³/h and 1600 kW limits are catalogue-wide. Give composition, suction temperature/variation, delivery, normal-volume reference and filling profile. Request actual package input and utility demand.
M-type mother-station duty details →L-TYPE · CNG STANDARD STATIONS
Higher inlet pressure changes the compression task
| Model | Inlet / normal flow | Motor | Speed / stroke / stages |
|---|---|---|---|
| L-3.3/2-250 | 0.20 MPa · 540 Nm³/h | 132 kW | 590 rpm · 200 mm · 4 |
| L-1.3/10-250 | 1.00 MPa · 800 Nm³/h | 132 kW | 590 rpm · 200 mm · 4 |
| L-1/12-250 | 1.20 MPa · 700 Nm³/h | 110 kW | 590 rpm · 200 mm · 3 |
| L-0.66/40-250 | 4.00 MPa · 1500 Nm³/h | 132 kW | 590 rpm · 200 mm · 2 |
Compare bids under the same pipeline conditions
The 132 kW examples carry different inlet pressure, normal flow and stage count. They do not establish an efficiency ranking at an identical duty.
Give pipeline pressure/temperature variation, gas analysis, base/peak demand and filling pattern. Resolve normal reference and gauge/absolute pressure. Obtain actual cooling, lubrication and utility scope for the offered L configuration.
Identify dehydration location and specification, filtration/separation, storage sequencing, metering/dispensers and station controls.
L-type model and station interfaces →
XD-11/35-250 · XD-13/35-250 · PURIFIED NATURAL GAS
Agree the trailer cycle behind the average capacity
XD-13/35-250
Average 1500 Nm³/h
90 kW · 980 rpm
Approx. 9000 kg
Both list 3–20 MPa inlet, 0–35°C inlet temperature and 25 MPa delivery, D-type two-row reciprocating construction, outdoor fixed-skid installation and a 4400 × 2540 × 2600 mm envelope.
Define the trailer-pressure profile, cycle, usable inventory and receiving demand. Average discharge is not a flat instantaneous curve during depletion. Agree normal-volume reference and pressure convention.
Cooling has two circuits
- Compressed gas
- Air-cooled
- Cylinders and lubricating oil
- Closed circulating-water cooling
- Lubrication
- Small-oil description; agree downstream gas quality/treatment
- Controls
- PLC · touch screen · soft start; offered interfaces to define
Obtain the actual utility/load schedule, lifting and maintenance drawing, component documents and qualified destination acceptance. Catalogue life statements do not replace applicable operating and maintenance conditions.
XD cycle and installation requirements →MANUFACTURE · CURRENT DOCUMENTS · COMPLETE STATION BOUNDARY
Connect equipment scope to acceptance and service
Tongda’s production/research gallery depicts equipment and technical activity. The company describes vessel design/manufacture and piping-installation qualifications. Request current documents matching the actual entity, site, category, validity and order.
- Define the station: compressor, gas treatment, dehydration, storage, dispensing/metering and interconnections.
- Agree the performance: inlet profile, normal basis, gas quality, duty/cycle curves and compressor versus total-station input.
- Verify the handover: P&ID, electrical/control/protection, lifting/foundation/removal drawings, applicable documents and actual factory/site tests.
- Agree ownership support: manuals, wear parts, commissioning, warranty start/exclusions and destination attendance/charges.
The published service network names domestic regions and an export function. Agree support for the actual destination and order; do not assume that an export function means a local service centre abroad.
Questions for a Tongda station project
Which path suits pipeline gas versus a pressurised trailer?
The reviewed L page addresses standard-station duty; XD addresses purified gas supplied from pressurised trailers. M provides mother-station references. Send the actual inlet envelope, gas quality, demand and scope for an engineered selection.
Can I use XD’s average capacity at every trailer pressure?
Define the averaging cycle and obtain the offered instantaneous/cycle performance. The source does not establish constant output through trailer depletion.
Is the XD machine entirely air-cooled and oil-free?
The source separates air cooling for gas from closed-water cooling for cylinders/oil and calls lubrication small-oil. Agree both utility circuits and actual gas-quality/treatment requirements.
Describe the station’s gas supply and demand
Send mother, standard or daughter-station task; gas analysis, inlet profile, delivery duty, filling cycle, normal-flow basis and required equipment boundary.
Prepare a Tongda enquirySpecification pages
Specification pages for Tongda product types
| Duty | Write on the RFQ |
|---|---|
| Process gas compressor manufacturers in China | Process gas is not plant air. Molecular weight, suction pressure, discharge pressure and flow size the machine. A kW from an air catalogue is unused. |
Product information
Information reviewed 2026-10-08. Specifications apply only to the models and conditions stated.
Tongda: Match the gas-supply route, paired inlet conditions and actual station scope before comparing packages.
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