Both during discharge and suction stroke the diaphragm is balanced by the hydraulic liquid which has been displaced by the piston.

Integrated in the hydraulic chamber are the pressure relief valve and an automatic venting valve.

The valveless forced reflow of the internal oil leakage operates wearfree and guarantees optimum metering accuracy.

The pump check valves are of cone, ball or prismatic type depending on size and design pressure. All wetted parts are fabricated from stainless steel.

Stainless steel diaphragm pump MhS 80/25

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• Hermetically tight
• Pressure up to 4000 bar
• Temperature range -60°C to +200°C
• Accuracy ±0.5%
• Diaphragm rupture control

• Special materials like Hastelloy, zirconia, titanium, Alloy 20
• Multi diaphragm with failure indication
• Heatable or coolable pump head
• Other type of valve arrangements e.g. double valves etc.
• Special nozzles on request
• Other options on request

For additional information, call
HOPKINS TECHNICAL PRODUCTS, INC.
1-800-732-6704