Valve test benches
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Catalog excerpts

Valve test benches - 1

Systems overview Valve test benches

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Valve test benches - 2

In the past few years WIKA has successfully integrated renowned manufacturers of calibration equipment into the group. With these established brands within the calibration market, we deliver the ideal solution for each measurement task. Among these brands, Scandura enjoys a special reputation for complete calibration systems and for valve test benches. These are available in different designs and levels of automation. A division of the WIKA group

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Valve test benches - 3

Your competent partner for valve testing solutions Industrial valves and safety valves are important elements in the process control and they play a key role in the safe operation of processes. Their task can be to block the pressure, regulate the fluid or protect the equipment. Valves are more and more exposed to increasingly demanding duties where extreme temperatures can be reached and where corrosion, erosion and vibration can reach critical values. It is calculated that still 50 to 60% of the emissions in industrial processes is caused by leaking valves. Consequently the test,...

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The benches are used for the regular and periodic checks of the safety valves to maintain the functional and / or safety performances in accordance with the plant prescriptions. In the standard configuration, the benches are suitable to test safety valves of the following sizes: ■ threaded valves: from /” to 2” NPT male and female ■ flanged valves: from 1/2” to 14” RF The valve tests can be carried our by means of the following fluids: ■ gas up to a pressure of 200 bar (other ranges available on request) ■ water up to a pressure of 420 bar (other ranges available The pneumatic test pressure...

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The two sections are always separated by a safety screen which protect the operator, limiting from accidental contact between the control panel and the pressurized section. All benches are equipped with leak detection and bubble/ dropper counter systems according to international standards such as API 527, API 526 and so on and with analog and/or digital indicators. The test gauges may be accompanied by official calibration certificate issue by an accredited laboratory. The version with digital instruments is provided with indicators having an RS232 interface for connection to a PC. The...

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Manual The manual version consist of four clamps and provides the locking of the valve under test test by means of tie rods and clamping nuts. This version is normally made for threaded and / or flanged valves with a maximum size of 6 “. The bench is usually gas operating and it is suitable to be supplied with detachable parts (clamping system and control panel) in order to be easily transported on a vehicle. Automatic The automated version is proposed with three clamps, with hydraulic thrust and torque adjustable, based on the rating of the valve under test. The test bench is intended for...

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Safety valve test benches Control panel The test control console It is a solid metal structure (2 mm thick steel) finished and painted in RAL 5012. Control and indicating equipment are mounted on its aluminium mimic front panel. Standard digital pressure gauges, class 0,1% accuracy, equipped with peak detector and RS 232 interface are provided according to the request for the valve test. Pressure gauges are properly protected by manual switch-off valves and overrange release valve. Manual pressure regulators for air and water test, and air distribution selectors are also provided along with...

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Control valves test benches are used to test the process control valves according to the international standards such as API 598, API6D, ANSI B16.104 and so on. They are normally present in the plant workshops and they are widely used during the maintenance activities. The series of benches is composed by four models to test valves with size from 6” to 24” and clamping force of max. 300 tons. Depending from the customers' specific requirements, the benches can be provided with leak control systems according to the classes of the tested valves and to the reference standards ANSI/FCI 70.2....

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Control valve test benches In all benches the pneumatic supply (7 bar air) is taken from The operation of the bench requires an electrical power bench with an air compressor. on request) and a pneumatic air supply of 7 bar (others the workshop air circuit or can be generated by the same The hydraulic test pressure is always obtained with re- supply of 400 Vac - 50/60 Hz three-phase (others available available on request). circulating emulsified water adequately accumulated in the Each bench consist of two basic sections, “clamping test. Recirculation is achieved with a filling pump and the...

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The test control console The test control console is similar to the safety valve test benches. It is equipped with digital gauges, selector for air distribution and switches. The clamping system is basically realised with screw unit and by a system able to push hydraulic cylinder with a proportional control of the closing force.

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Service in detail Assistance from the very beginning WIKA / Scandura is your competent partner through all phases of the project: starting with planning the basic and detail engineering through the bench construction to the after-sales assistance. Perfect logistics Whether wooden cases or pallets, container shipment or sea-freight packaging, we will meet your delivery expectations. Our efficient distribution system is supported by both our subsidiaries and representative offices around the world. So you can be sure that the delivery will always arrive at the agreed time and at the agreed...

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WIKA Italia Srl & C. Sas Via G. Marconi, 8 - 20010 Arese (MI) Tel. 02-93861.1 - Fax. 02-93861.74 E-Mail: info@wika.it - www.wika.it IwikaII ^ Part of your business 11/2014 - GB

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