Stemat-Jansen | Robinetterie industrielle

Another specific custom achievement

Problematic :

Under the installation of a pumping station for drinking water supply, the commonly used valves feature an elastomer disc, that cannot resist to pressures over 25 bars. Thus the requirement for gate valves featuring a metallic disc.

Solution :

STEMAT-JANSEN engineers created a valves able to support nominal pressures up to 100 bars, specific to water installations, designed under the EUROFIN sanitary conformity agreement.
Those are the steel gate valves PN25, PN40, PN63 and PN100 featuring a stainless rod, and a stainless dual contact. The inside and outside coating is made through food epoxy. Connection is performed step by step, adjusted to the requested nominal pressure.

A brine resistant gate valve

Problem :

A salting company using brine for pork meat preservation, experienced significant etching problems.

Saturated with salt so particularly corrosive, this medium begins to etch iron parts, particularly when these have not been originally protected with specific coating.

Solution :

In order to meet brine convey requirements, DN350 valve has been enhanced to be able to resist this high medium corrosivity.

STEMAT-JANSEN engineers entirely dismounted a gate valve. All components but wedge and inside-body seats previously protected, have been sand blasted. Then they applied 7 layers of a special paint resisting to high salt density, for a final 700 microns thickness.

Other specific products :
– Limit switch
– Special coating for drinking water
– Bronze internals for sea water
– Special flange manufacturing and drilling
– Special screen for Strainers
– Chainwheels for overhead network
– Electric, pneumatic or hydraulic actuator
– …