Hydrostatic Pressure Testing Machine for Gas Cylinders
Buy a hydraulic pressure testing machine built for daily LPG cylinder hydrostatic testing and industrial gas cylinder inspection. Designed for plant floors where operators need stable cycles, clear records and equipment that fits a wider processing line.
Request a Quote Contact UsPurchasing managers and factory owners usually shortlist a hydrostatic pressure testing machine when cylinder requalification becomes a bottleneck or when local rules require documented pressure checks before filling. The machine must match your cylinder diameter range, hold pressure without drift, and leave enough workshop space for trolleys and reject staging. We manufacture the YSY series for those plant conditions, not for showroom demonstrations alone. For cylinder drawings, daily output and voltage options, request a hydrostatic testing machine quotation from UnitycH.
International buyers in Africa, the Middle East, South America and Southeast Asia often ask the same first questions: which model fits Φ219–Φ660 mm cylinders, what voltage we ship with, and whether the unit can sit after cleaning and before painting or filling. This page answers those points with model data, process notes and links to related stations from our gas cylinder testing equipment manufacturer homepage and solution pages.
If your site already runs valve work or bottling, treat pressure testing as the safety gate that decides which cylinders may continue. A correct machine choice reduces rework, protects operators and gives auditors a pressure-time record instead of verbal confirmation.
Key Features & Specifications
A hydraulic pressure testing machine—also called a hydrostatic testing machine or hydro-test rig—fills a gas cylinder with water, raises pressure above the normal working level, holds that pressure for a set time, then releases it while the operator reviews expansion data or a pass/fail result. Water is used because it stores far less energy than gas at the same pressure, which lowers risk during a cylinder hydrostatic test.
PLC control stores automatic ramp, hold and release parameters as repeatable PLC test recipes. Optional report output helps maintenance centers keep records for fleet contracts. When you later add a cylinder refurbishment line, the same machine becomes the inspection core rather than a standalone island.
YSY Model Range
| Model | Cylinder Range | Max Test Pressure | Capacity |
|---|---|---|---|
| YSY-600 | Φ219–Φ406 mm | 45 MPa | 1–2 cylinders/cycle |
| YSY-800 | Φ219–Φ660 mm | 45 MPa | 1 cylinder/cycle |
| YSY-1000 | Φ219–Φ800 mm | 50 MPa | 1 cylinder/cycle, fully automatic |
Hydro-Test Rig Performance
- Controlled pressurization: Automatic ramp, hold and release for consistent hydrostatic cycles.
- PLC recipes: Store approved test methods so operators repeat the same sequence across shifts.
- Inspection records: Pressure-time data with print or export options for audits and fleet reports.
- Cylinder range options: YSY-600 / 800 / 1000 for common LPG and industrial diameters (Φ219–Φ800 mm).
- Export utilities: Standard industrial power with regional voltage discussion at quotation.
- Line-ready layout: Fits cleaning, valve and calibration stations in one workflow.
| Test Medium | Water (demineralized recommended for corrosion control) |
|---|---|
| Pressure Control | Automatic ramp, hold and release with PLC |
| Data Recording | Pressure-time curve, test report print/export |
| Power Supply | 380V / 50Hz (customizable for export projects) |
| Max Test Pressure | 45–50 MPa depending on YSY model |
Features should be scored against shift output, not brochure language. Ask about seal kits, pump service intervals and how long a new operator needs to run a safe cycle. Pair the machine with a correctly sized high-pressure pump when your test pressure or fill speed needs it. Typical export terms: one-set MOQ for standard models, about 30–45 days lead time after confirmation, T/T or L/C for larger packages, wooden-case packing, and twelve-month warranty on main components.
Applications for LPG & Industrial Gas Plants
This gas cylinder testing equipment supports LPG cylinder test work, industrial gas cylinder hydrostatic testing and cylinder proof tests before filling or fleet release. Third-party requalification centers also use it when diameter mix and changeover speed matter as much as peak pressure.
LPG Cylinder Requalification
Bottling plants and service contractors run scheduled LPG cylinder requalification before cylinders return to filling. Stable hold times and printed or exported records support customer and authority checks.
Industrial Gas Factories
Oxygen, nitrogen, argon and mixed-gas sites use hydrostatic testing for fleet cylinders that serve welding, medical and manufacturing customers.
New Cylinder Acceptance
Importers and cylinder makers run proof tests before stock enters commercial fleets or local distribution.
Many growth-market plants combine inspection with cleaning and exterior repair in one filling plant inspection line. In that case the hydraulic pressure testing machine sits after a cleaning and drying machine and before painting or return to gas cylinder filling equipment. Staged buying is common: secure testing first, then add surface stations when cash flow allows. See a typical LPG cylinder testing plant layout before you finalize station order and floor space.
A practical cylinder refurbishment line sequence looks like this: receive and de-valve with a valve loading and unloading machine; clean and dry internals; run hydrostatic inspection on this machine; restore exteriors with shot blasting and spray painting when needed; then calibrate safety valves and move approved cylinders to filling. If you need that path as one project, open the cylinder refurbishment line page and share workshop size plus target cylinders per day.
Compliance & Safety Standards
UnitycH hydrostatic pressure testing machines are designed to support ISO-aligned hydrostatic test procedures and periodic requalification documentation for export plant safety requirements. ISO standard compliance in daily operation depends on your approved method, hold times and record-keeping—not brochure claims alone.
ISO Standard Compliance
Use stored PLC recipes and pressure-time test records so auditors can review the same hydrostatic test procedure across shifts. Print or export options help maintenance centers keep audit-ready inspection reports for fleet contracts and authority checks.
Plant Safety Interlocks
- Over-pressure protection: Limits unsafe peaks during cylinder hydrostatic test cycles.
- Safety interlock doors: Reduce exposure while the hydro-test rig is pressurized.
- Emergency stop: Plant-floor control for immediate shutdown.
After valve installation, many plants also use a safety valve calibration stand or helium leak detector before dispatch. Keep body testing and valve checks as separate gates so failures are easy to classify. Water circuits, sealing points and electrical protection are arranged for repeated industrial use, with remote commissioning guidance when local technicians finish setup.
FAQ & Inquiry for Hydro-Test Equipment
What cylinder sizes can the hydraulic pressure testing machine handle?
The YSY series covers common industrial ranges from about Φ219 mm to Φ800 mm depending on model. Share cylinder diameter and working pressure for quotation so we can recommend YSY-600, YSY-800 or YSY-1000.
Is this machine suitable for LPG cylinder requalification?
Yes. LPG plants and cylinder maintenance centers use this hydro-test equipment for periodic LPG cylinder hydrostatic checks before cylinders return to filling service.
What test medium and pressure range are used?
Water is the standard test medium. Typical maximum test pressure is 45–50 MPa depending on model. Demineralized water is recommended where corrosion control matters.
Can the machine work inside a cylinder refurbishment line?
Yes. It is usually placed after cleaning and drying and coordinated with valve handling, calibration and filling stations in a cylinder refurbishment line.
What information do you need for a quotation?
Send cylinder diameter and length, working pressure, gas type, target cylinders per day, and voltage for export projects. Drawings or photos of existing fixtures help us confirm clamping and cycle time for a customized industrial quotation from UnitycH.
Request a Quote
Send cylinder size, test pressure and daily output. We will recommend the right YSY hydro-test equipment model within 24 hours.
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