TPi March 2015

Fi t t ings

Solenoid valve for high- pressure applications

The valve is offered in a direct current version. For devices with alternating current, a rectifier connector socket is included in the standard scope of delivery. Typical applications for the universal type 6027 valve are critical gases and fluids. The high-pressure version offers solutions for the construction of test rigs. One example for this would be filling systems for air conditioners in the automotive industry. This application is relevant, since the EU has defined new limits for the emission of climate- damaging coolants; starting in 2017, air conditioners in new cars can be filled only with coolants having a relatively low global warming potential (below 150).

The type 6027 solenoid valve from fluid technology specialist Bürkert is available in a new high-pressure version for pressures up to 250 bar. The new variant of the type 6027 seals the valve seat with a ceramic ball seal. The seal is self-centring and provides reliable and long-term protection against leaks. The ball material (Al 2 O 3 ) is resistant to abrasion, wear and chemicals. The material used for the seat of the solenoid valve is highly temperature- resistant polyether ether ketone (PEEK). The hardness and chemical resistance of this material fulfil the high requirements with respect to the sealing properties of the solenoid valve. The use of stainless steel and a laser-welded plunger guide tube provides high pressure resistance (five times the nominal pressure) and low leakage.

The new type 6027 solenoid valve variant for high-pressure applications up to 250 bar

for gas applications, where the use of sliding rings reduces abrasion.

Bürkert Fluid Control Systems – Germany info@burkert.de www.burkert.com

In addition to test benches, the new high-pressure valve is also suitable

New nozzle check valve YPS Valves, a designer and manufacturer of valves for the hydrocarbon processing, chemical, nuclear and off-shore industries, has developed a Nozzle Check Valve. The valve is available to order in sizes from

YPS has also invested £120,000 on an improved dye penetrant testing facility at its manufacturing base in Leeds, West Yorkshire, UK. The new facility increases the capacity to conduct additional DPI tests with more efficiency, and is used to confirm the integrity of castings and welds. The on-going investment in equipment has included the recent addition of a new CNC milling machine capable of producing very large high pressure valves particularly for oxygen service, which is now fully operational. A high-capacity ultrasonic degreasing machine is also in use after being commissioned at the end of last year. The machine can degrease valves up to a 16" 900 globe valve, making it suitable for a range of applications, including oxygen service.

0.5" to 2", with larger sizes to be made available later in the year.

The company says that the Nozzle Check Valve has been produced to provide customers with an alternative to swing

check valves. Managing director Rachel Wormald commented, “We have introduced this valve to our range in response to customer demand. As well as being competi- tively priced, they are also very efficient and easily maintained, and can be manufactured from both castings and bar material.” major consignment of the Nozzle Check Valve has been completed and despatched to a client in China, for liquid oxygen fluid service. The first

YPS Valves – UK info@yps-valves.co.uk www.yps-valves.co.uk

YPS Nozzle Check Valve

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Tube Products International March 2015

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