The KY-B is the vertical hydraulic valve test bench in the KANGYUAN range, for flanged, welded and threaded valves. This page also covers the specialist machines built alongside it: the KY-L hydraulic hammer, the hydraulic valve grinder and the automated pipeline clamping machine.
The KY-B is built for pressure performance testing of valves with different end connections on the same machine: flanged valves, welded valves, and valves with internal or external threads. A single bench therefore covers work that would otherwise need several sealing arrangements, which suits factories and workshops whose valve programme is not limited to one connection type.
Clamping is available in both of the forms KANGYUAN builds: clamp jaws that grip the valve, and top pressing, where the valve is pressed onto the sealing arrangement from above. The upper crossbeam can be swung back through 90 degrees, which clears the working area so the valve can be loaded and positioned without working around the beam. The control cabinet carries the pressure gauges, the button panel and a timer.
High and low pressure water pump units are built into the machine, and the test medium is stored and recirculated. The medium is water, air or kerosene, selected by the user at the time of order. As with the rest of the KY range, a computer test data management system can be fitted as an option.
Model designations for the KY-B bench are confirmed with KANGYUAN at quotation. The table below identifies the three sizes by nominal diameter range; the corresponding model designation is confirmed against your valve data at quotation.
Parameters from the KANGYUAN catalogue page for the KY-B vertical hydraulic valve test bench. Dimensions and options are confirmed against your valve data at quotation. The three columns are identified by the nominal diameter range each one covers, and the model designations for this bench are confirmed at quotation.
| Parameter | DN15–100 * | DN50–200 * | DN80–300 * |
|---|---|---|---|
| Nominal diameter DN (mm) | 15–100 | 50–200 | 80–300 |
| Nominal pressure PN (MPa) | 1.6–32 | 1.6–32 | 1.6–32 |
| Maximum clamping spacing (mm) | ≤450 | ≤600 | ≤850 |
| Minimum clamping spacing (mm) | ≤100 | ≤170 | ≤230 |
| Axial stroke (mm) | ≤60 | ≤70 | ≤85 |
| Radial stroke (mm) | ≤120 | ≤160 | ≤200 |
| Pressure-regulating range (MPa) | 0–6.3 | 0–6.3 | 0–6.3 |
| Flow rate (L/min) | 16 | 16 | 25 |
| High pressure / booster stage (MPa) | 3.0–31.5 | 3.0–31.5 | 3.0–31.5 |
| Oil pump pressure (MPa) | 0–5.0 | 0–5.0 | 0–5.0 |
| Voltage (V) | 380 | 380 | 380 |
| Frequency (Hz) | 50 | 50 | 50 |
| Power (kW) | 2.2 | 2.2 | 3 |
| Number of poles (P) | 6 | 6 | 6 |
| Overall length L (mm) | 1750 | 1850 | 2050 |
| Overall width B (mm) | 800 | 1100 | 1100 |
| Overall height H (mm) | 1850 | 1850 | 1850 |
| Weight (kg) | 1500 | 2000 | 2500 |
* Confirmed against your valve data at quotation. The three parameter columns are reproduced as printed and are identified by the nominal diameter range each one covers. The clamping and top-press arrangement, not the model number, is what determines whether the bench suits a given valve.
The bench works with both clamping methods. Clamp jaws grip the valve body or flange, and the top-pressing arrangement holds the valve down onto the sealing face from above. Which method is used depends on the valve: a flanged valve is normally sealed on the flange faces, while a welded or threaded valve body needs the pressing arrangement to hold it against the seal.
The upper crossbeam can be swung back through 90 degrees, which opens the working area above the sealing position. Loading and removing a valve is therefore done in clear space, and the beam is swung back over the valve only when it is in place and ready to be clamped.
The bench is built for flanged, welded and internally or externally threaded valves. Sealing parts are made for the end connection of the valves you actually test, so one machine can serve a valve programme that includes more than one connection type instead of being tied to a single flange standard.
The control cabinet carries the pressure gauges, the push-button panel and the timer used for the pressure hold. The gauges are read directly by the operator during the test, and the timer is what makes the hold time repeatable between valves rather than estimated.
Both pump stages are built into the machine: the low pressure stage fills the valve quickly and the high pressure stage takes it up to the test pressure. The test medium is stored in the machine and recirculated rather than drained away after each cycle.
The test medium is water, air or kerosene, selected by the user when the machine is ordered. The medium and the circuit arrangement for it are confirmed with the quotation together with the sealing parts for your valve ends.
A computer test data management system can be ordered with the bench, as on the rest of the KY range: pressure sensors, a PLC, an LCD touch screen, printing of the test record and CF card storage of the data.
Fill, raise to test pressure, hold, read, drain, release and record — the vertical bench follows the same sequence as the KY and KY-Z benches, so an operator who has run one KANGYUAN machine can run the others.
A pressure-test safety protection device is listed by KANGYUAN for its test benches, and the catalogue states it explicitly for the KY-A power-station bench. On the KY-B vertical bench the protection arrangement is part of the machine configuration and is confirmed with the quotation, together with the clamping and sealing arrangement for your valves.
Three machines in the KANGYUAN range support valve testing and valve reconditioning work. The catalogue names them but publishes no parameter table for them, so each one is quoted as custom equipment against the job it has to do.
KY-L 型锤式液压机. A hydraulic hammer press supplied alongside the test benches. Built to order for the job it has to do; the catalogue gives no parameter table for it, so the specification, force and working range are confirmed at quotation.
KY 型液压阀门研磨机. A machine for grinding and lapping valve seating surfaces as part of valve reconditioning. Built to order; the catalogue gives no parameter table for it, so the sizes it covers and the drive arrangement are confirmed at quotation.
自动化流水线装夹机. An automated clamping machine for pipeline work, used where clamping has to be repeated as part of a production flow. Built to order; the catalogue gives no parameter table for it, so the clamping range and the degree of automation are confirmed at quotation.
Because no parameters are published for these three machines, nothing about their size, force or capacity is stated on this page. Send us the valve or pipeline work they have to handle and KANGYUAN returns a specification with the quotation.
KANGYUAN states that it works to the standards and systems below. They are quoted here as the manufacturer's own quality statement, and each machine is configured so that the pressures and hold times your procedure requires can be reached and held.
Test procedures follow GB/T13927-92, API 598 and whatever standard your own specification names.
The machines are used by valve manufacturers, in oil and petrochemical plants, natural gas engineering, power stations, and water supply and drainage works. Units from the KANGYUAN range are in service in the United States, Germany, Canada, Spain, the Netherlands, the United Arab Emirates, Japan, South Korea, Indonesia and Taiwan region, as well as elsewhere in Southeast Asia, the Middle East, India and Europe.
The KY-B vertical bench is published in three sizes covering DN15 to DN100, DN50 to DN200 and DN80 to DN300, each at a nominal pressure of 1.6 to 32 MPa, and those parameter columns are on this page as they are printed in the catalogue. Model designations for this bench are confirmed against your valve data at quotation.
The KY-B works with both clamping methods: clamp jaws that grip the valve, and top pressing, where the valve is pressed onto the sealing arrangement from above. The upper crossbeam can be swung back through 90 degrees, which clears the working area for loading and unloading. The bench is built for pressure performance testing of flanged, welded and internally or externally threaded valves.
The test medium is water, air or kerosene, selected by the user when the machine is ordered. The catalogue lists a nominal pressure of 1.6 to 32 MPa for all three columns, a pressure-regulating range of 0 to 6.3 MPa, an oil pump pressure of 0 to 5.0 MPa and a high-pressure (booster) stage of 3.0 to 31.5 MPa, with high and low pressure water pump units built into the machine and the test medium stored and recirculated.
They are separate machines in the KANGYUAN range, built alongside the test benches: the KY-L hydraulic hammer, the hydraulic valve grinder and the automated pipeline clamping machine. The catalogue names them but publishes no parameter table for them, so each one is quoted as custom equipment against the job it has to do. Tell us what the machine must handle and KANGYUAN returns the specification with the quotation.
Yes. A computer test data management system is available as an option on the KY-B, as on the rest of the KANGYUAN KY range. It covers the pressure sensors, a PLC, an LCD touch screen, printing of the test record and CF card storage of the data. Without that option the machine is operated and read from the panel instruments.
Eight models from KY-100 to KY-1000 covering DN15 to DN1000, with the full catalogue parameter table published: spacing, strokes, pump pressures, power and machine weight for every model.
KY series details →
The KY-Z range tests the valve while it is submerged in a water pool on a clamping table that can be raised, lowered and turned through 90 degrees. Suited to gas pressure testing and to workshops where a visible leak path matters.
KY-Z series details →Tell us the valve type, the size range, the test pressure, or what the auxiliary machine has to handle. Email, phone or WhatsApp — technical questions are answered by the people who build the machines.
