Pressure Gauges

Les Cooke Instrument Co Manufactures a broad range of diaphragm seals for different applications and from a variety of materials. We are able to provide seals with flush welded diaphragms as well as those that use the conventional clamped diaphragms. Some examples are shown below.We can custom manufacture seals to suit your specific requirements in any quantity. We also repair and recondition other manufacturer’s seals.Systems are filled under the strictest of conditions to ensure that all air is excluded from the filling fluid and from inside the system. Various fluids are used for filling and they include media that is compatible with food processing and special high temperature applications.

Glycerine filled gauge

Case AISI 304 Stainless
Steel Bezel Stainless Steel (Bayonet type).
Weatherproof Construction
Socket +Element Brass
Thread 1/8”, 1/4”, […]

Petro Chemical Stainless Steel

Case AISI 304 Stainless Steel Bezel Stainless Steel (Bayonet type).
Weatherproof Construction Socket + Element AISI 316 Stainless […]

Safety Pattern Gauge

Case AISI 304 Stainless Steel Solid front between bourdon tube and dial.
Bezel Stainless Steel (Bayonet type) Weatherproof Construction Socket […]

Heavy Duty Bolted Seal

Heavy duty bolted seals with
P.T.F.E. wetted parts fitted to 100mm Pressure and compound gauges.¾” BSP female process connection. Available […]

Low Cost Diaphragm Seal

Low cost diaphragm seal fitted
to 100mm pressure gauge.
Welded 316 s/steel
construction.
Available in sizes from 1½” to
3”(nom.)

3″ Flange Seal

3” flange seal, with welded 316
s/steel diaphragm, and 1 metre
armoured capillary tube fitted to a
pressure transmitter.
Available in sizes to […]

Mud Pump Pressure Gauge

A rugged totally waterproof and built to operate in the harsest environments.
It comes with a heavy duty steel […]