Macawber Engineering Inc.

Dome Valve

Dome Valve

Originally patented in the late 1970’s, the Dome Valve® is unique in its ability to open and close with a tight pressure seal in pneumatic conveying systems for abrasive materials. No other valve can achieve as long of a life in harsh environments like the Dome Valve®. We are the original designers and patent holders of the Dome Valve®.

Pressure Valves – The Dome Valve®:

• Pressure – up to 14 barg (200 psi)
• Design code – ASME sect. VIII Div. 1; PED; GB150
• Sizes – 50 – 750 mm (2 – 30 in)
• Material – Iron, Carbon Steel, Stainless Steel
• Temperature – up to 350 ° C (662 ° F)

Key Features:

• Inflatable seal self-compensates for wear as the valve is used.
• Valve can open and close through a static or moving column of material.
• Low-maintenance. Replacement time is quick.
• Temperature capabilities
• Cast or stainless construction available. Teflon®, tungsten carbide or other coatings available depending on customer need.

Cut-Away View

This cut-away view reveals the inner workings of the Dome Valve® including the inflatable seal. The soft seating feature allows the Dome Valve® to operate reliably and repeatedly in harsh, abrasive environments.