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About Presreg
Pressure Range Summary
Hand Adjusted Pressure Regulation
Dome Loader Pressure Regulation
Pressure Maintaining & Relief Valves
Hand and Pilot Operated Stop Valves
Non-Return Check Valves
Bespoke Design & Project Management
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Non-Return Check Valves

Our standard 500 Series range of high flow, low delta-p, bubble tight shut-off non-return valves are supplied world wide and we can provide bespoke solutions for particular installations..
We are able to supply most models in materials suitable for HIGH PURITY, OXYGEN and N.A.C.E service but please specify this requirement with your enquiry or when placing an order.
HP Non-Return Valve
Series 500  A range of high capacity, positive sealing, low delta-p non-return valves in 1/4", 1/2" & 3/4" nominal bore sizes. Port sizes from 1/4" to 1-1/2"male or female options and suitable for operating pressures up to 414bar.
A selection of l material options is available to suit most applications.


 Please call if you require advice on product selection. 
 Tel: ++44(0)1509 264242      Fax: ++44(0)1509 217346       enquiry