Kangyuan Fluid Control (Zhejiang) Co., Ltd — KY series

Valve Pressure Test Machines and Hydraulic Valve Test Benches — KANGYUAN KY Series

KANGYUAN builds the KY series of hydraulic valve pressure test benches in Wenzhou, Zhejiang: six machine families covering flange-connected valves from DN15 to DN1000, flanged and wafer butterfly valves, large-caliber power-station valves and vertical loading. Tell us your valve type, size range and test pressure — we engineer the machine around it.

20+Years building valve test equipment
6KY series machine families
DN15–DN1000Covered by the KY bench
10Markets our machines run in
KY series hydraulic valve pressure test bench with clamping jaws, sealing heads and hydraulic power unit
Product range

Six KY series families cover almost every valve test

Every machine integrates hydraulics, electromechanics, pressure testing and test-medium storage and circulation in one unit. Auxiliary machines complete the line: the KY-L hydraulic hammer, the KY hydraulic valve grinder and an automated pipeline clamping machine.

KY series hydraulic valve test benches with clamping frames and control consoles
KY series

KY Series Hydraulic Valve Test Bench

The core of the range. KY-100 to KY-1000 seal flange-connected valves from DN15 to DN1000 on the flange end face and grip the back of the flange with clamp jaws, so the test result is free of external force. Test medium: water, air or kerosene.

KY series valve test bench details →
KY-Z immersed hydraulic valve test bench with blue control console and two red test pools
KY-Z immersed

KY-Z Series Immersed Hydraulic Valve Test Bench

The clamping table lowers the test piece into the water pool and can turn it through 90°, which is what gas-pressure seat testing needs. Pump station, control console and clamping unit are connected on site. Test medium: water or air.

KY-Z immersed bench details →
KY-Z combined small-caliber immersed valve test bench with clamping head and water tank
KY-Z combined

KY-Z Combined Small-Caliber Immersed Test Bench

A compact immersed bench for small-caliber flange valves, arranged as a combined clamping and control unit where floor space is tight and the valve mix changes through the shift.

KY-Z combined bench details →
KY-A large-caliber power-station valve test bench with long clamping frame and hydraulic power unit
KY-A power station

KY-A Series Large-Caliber Power-Station Valve Test Bench

KY-A/100 to KY-A/800 for large-caliber welded and threaded power-station valves, from DN15-100 up to DN400-800. 380 V, 50 Hz; oil pump working pressure 0-6.3 MPa and oil cylinder up to 31.5 MPa.

KY-A power-station bench details →
KY-T hydraulic butterfly valve test bench with synchronous clamping jaws and control cabinet
KY-T butterfly

KY-T Series Hydraulic Butterfly Valve Test Bench

KY-T300 to KY-T2000 for flanged and wafer butterfly valves: shell and seat pressure testing plus disc opening and closing and electric actuator torque testing, with synchronous clamp-jaw clamping in single or combined form.

KY-T butterfly bench details →
KY-B vertical hydraulic valve test bench with green control cabinet and red hydraulic cylinder
KY-B vertical

KY-B Vertical Hydraulic Valve Test Bench

Vertical machine for flanged, welded and threaded valves. It works with clamp-jaw or top-pressure clamping, the upper cross-beam swings back 90° for loading, and the medium is water, air or kerosene.

KY-B vertical machine details →
Built into every KY machine

Shell, seat and gas tests with the medium circulating in a closed system

A valve pressure test is not a single operation — it is a sequence set by the standard your customer quotes. The KY series is configured so the operator can run that sequence, and turn the valve, without re-plumbing the rig between stages.

  • Flange end-face sealing — the valve is sealed on its flange end face and clamp jaws grip the back of the flange, so no external force influences the test result.
  • 90° turnover — the clamped valve can be turned through 90° during the test, the feature that makes gas (air) seat-tightness testing practical.
  • High- and low-pressure pump supply — a high-pressure pump and a large-flow low-pressure water pump are built into the machine, with a 0-6.3 MPa regulating range and 3.0-31.5 MPa boost pressure on the KY bench.
  • Test-medium storage and circulation — the test medium is stored and recirculated from the machine's own tank. The KY bench runs on water, air or kerosene; the KY-Z immersed benches on water or air.
  • Integrated hydraulics and electromechanics — hydraulic power, electromechanical clamping and control, pressure testing and medium circulation in one unit, on 380 V, 50 Hz electrics with 2.2-7.5 kW drives on the KY bench.
  • Optional computerised test-data management — pressure sensors, PLC, liquid-crystal touch screen, printing and CF-card storage can be ordered to record each test.

Test pressures, hold times and acceptance criteria always follow the standard or factory procedure you specify. Kangyuan states that it works to GB/T13927-92 (general valve pressure test), API 598 and the ISO 9000 quality management system, among other relevant standards. KANGYUAN builds and configures the machine; the valve specification and the acceptance decision stay with you and your inspector.

KY-Z immersed valve test benches with clamping tables and hydraulic power units
Why buyers choose KANGYUAN

A valve testing equipment factory in Wenzhou, Zhejiang

Six KY series machine families

KY hydraulic benches, KY-Z immersed benches, KY-Z combined small-caliber benches, KY-A power-station benches, KY-T butterfly valve test benches and the KY-B vertical machine — plus the KY-L hydraulic hammer, the hydraulic valve grinder and an automated pipeline clamping machine.

Equipment in service in ten markets

The company states that its machines are in use in the USA, Germany, Canada, Spain, the Netherlands, the UAE, Japan, South Korea, Indonesia and Taiwan region.

Built to the standard you quote

Kangyuan states that it works to GB/T13927-92 (general valve pressure test), API 598 (valve inspection and test) and the ISO 9000 quality management system, and configures each machine to reach and hold the pressures your specification requires.

One integrated machine, not a collection of parts

Hydraulics, electromechanics, pressure testing and test-medium storage and circulation are designed as one system, with the optional computerised test-data management package for recording results.

诚信通天下,质量保未来 — Integrity connects the world, quality ensures the future.

Operator running a vertical hydraulic valve test machine at a customer's works

A vertical valve test machine in operation at a customer's works.

Valves waiting to be pressure tested in batches in a customer's workshop

Valves lined up for batch pressure testing in a customer's workshop.

Applications

Industries and valves the KY series is built for

The company states that its equipment serves valve manufacturers, petrochemical plants, natural gas engineering, power plants and water supply and drainage — with machines working in the USA, Germany, Canada, Spain, the Netherlands, the UAE, Japan, South Korea, Indonesia and Taiwan region.

  • Flange-connected gate valves
  • Globe valves
  • Check valves
  • Flanged and wafer butterfly valves
  • Welded and threaded valves
  • Large-caliber power-station valves
  • Small-caliber valve batches
  • Valves tested on air or gas

See applications in detail →

Wide view of a valve pressure testing workshop with test benches along the bay

Send us your valve data, get a machine proposal

Kangyuan Fluid Control (Zhejiang) Co., Ltd · No.137, SanPu road, HouYang, OuBei town, WenZhou, Zhejiang, China · Tel +86 577 6797 7299 · Fax +86 577 6737 7299 · After-sales +86 133 3577 3099.

kangyuangroup@gmail.com WhatsApp +86 187 5776 5223