Zwick

Zwick – Tri-Jack Triple Offset Jacketed Valves

The Zwick Tri-Jack is the Tri-Con triple offset valve fitted with steam jackets for process where media may solidify or chrystalize if the product temperature drops below a specific point. Also known as triple eccentric...

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About Zwick – Tri-Jack Triple Offset Jacketed Valves

The Zwick Tri-Jack is the Tri-Con triple offset valve fitted with steam jackets for process where media may solidify or chrystalize if the product temperature drops below a specific point.

Also known as triple eccentric valves or triple offset butterfly valves, the unique design offers zero leakage which is made possible by true cone-in-cone seating design which ensures frictionless opening and closing with lowest torques and without a break-away torque. The robust design makes the Tri-Con the ideal rotary solution for isolation, on/off and control in today’s demanding process industry.

Full repair and reconditioning facilities are available at our Vereeniging and Durban branches. There are hundreds of valves installed in South Africa today in industries like synthetic fuels, oil & gas, chemical and power generation.

Contact one of our technical specialists for a quote today or download the Tri-Jack brochure to learn more!

Series	Tri-Jack Steam Jacketed Valves
Design	Triple Offset / Triple Eccentric Rotary Valve
Features	ZERO leakage bi-directional shut-off Resilient metal to metal seats Quarter turn friction free operation – No seat rubbing Self-centering torque seated disc – True cone in cone sealing Temperature compensating – No shaft to disc pins Supported bearing bushing for optimal shaft support Anti blow-out shaft
Size Range	50mm to 900mm / 2” to 36”
Pressure Rating	PN6 – 160 / ANSI 150 – 900
Temperatures	-196°C to +815°C
End Connections	Double flanged
Body Materials	Carbon steel / Stainless Steel / Alloy steels / Special alloys
Disc Materials	Carbon steel / Stainless Steel / Alloy steels
Seat Materials	Resilient metal to metal
Standards	Material and/or pressure test reports with cert. to EN 10204 / 3.1 Fire Safe acc. API 607 4th ed. and B.S. 6755 for both directions CE-Certificate acc. to 2014/68/EU Anti blow-out shaft API 609 Leakage testing to API 598 and/or DIN EN 12266-1 Fugitive emissions to TA-LUFT 1 & 2 / VDI 2440 BAM-Approval for Oxygen Mounting bracket acc. to ISO 5211
Options & Accessories	Manual, pneumatic actuators or electric actuators Valve Positioners Solid or laminated seal ring Sealed bearings High cycle bearings
Applications	Where you are looking for an isolation, on/off or control valve that provides zero leakage, and has a proven track record on media like molten sulphur, sulphur tail gas, tar and bitumen, that needs to be kept at specific temperatures so it does not solidify or crystalize.