Valve Testing Machines and Valve Test Benches

The machine follows the valve, not the other way round

Buyers often ask for a price first and a specification second. That order does not work for valve testing machines, because two factories testing the same nominal valve size can need completely different equipment. The machine is derived from the valve: its type and body geometry, the size range you actually run, the test pressure the standard demands, the test media, the number of test stages in one cycle, and how many valves pass across the bench in a shift. A DN80 soft-seated ball valve tested on air at low pressure and a DN300 cast steel gate valve tested hydrostatically at 1.5× rating are not the same machine with a different paint colour. They differ in clamping force, platen travel, sealing arrangement, pump duty, pipe bore, instrumentation class and safety guarding.

KANGYUAN has built these machines for more than 20 years as a factory-direct manufacturer, so we start every enquiry from your valve data and work outwards. In practice that leads to one of three machine configurations, each with a clear job:

• Valve pressure test machine — a vertical hydraulic press frame that clamps the valve between two sealing platens and applies shell, seat and backseat test pressure. Best suited to gate, globe, check and other valves that are tested upright, particularly larger and heavier bodies.
• Valve test bench — a horizontal bench with one or two independent stations, a compact hydraulic power unit and a digital pressure console. Suited to smaller valves, higher throughput and workshop bays with limited headroom.
• Valve testing equipment — skid-mounted multi-station systems that combine pump, tank, manifold, instrumentation, controls and data logging in a single package. Suited to production testing, safety valve work and customers building a new test bay from scratch.

Everything that touches the valve — platen size, sealing plate, flange adapters, clamping stroke, clamping force and control level — is made to your drawings. Send us the data and we will tell you which series fits, and why.

What is not in the standard package

A clear scope boundary saves arguments later. The machine arrives complete and function-tested in our workshop, but a few items sit outside the standard supply because they depend on your building, your utilities or your inspector. These are quoted as options when you want us to arrange them, or handled by you or your local contractor.

• Foundation and pit work — civil design, excavation, concrete and anchor grouting for larger frames and skids, usually carried out locally to our foundation drawing.
• Water supply and drainage — filling the tank, topping up, and routing the drain from the test area.
• Compressed air — a clean, dry air supply at the pressure and flow the pneumatic clamps or air test circuit require.
• Three-phase power — the supply to the machine, including the isolator and cable from your distribution board, sized to the motor and control ratings in the proposal.
• Third-party inspection — where your customer appoints an inspection agency, the agency's fees and attendance are arranged and paid by the buyer, and we support the inspection with test records and access.
• On-site commissioning travel — installation guidance and remote support are included; if you want our engineer on site for commissioning or operator training, travel, accommodation and labour are quoted separately.

Listing these openly is not a limitation of the machine. It means the quotation you receive covers the equipment, and the items that depend on your site are visible from the start rather than appearing later.