Zwick – Tri-Shark Control ValvesEnquire Now

BRAND: ZwickCATEGORY: Control Valves, Triple Offset Valves,

The Zwick Tri-Shark Control Valve is a patented solution, which combined the Tri-Con Triple Offset Valve with our throttling cartridge to form the Tri-Shark. With this combination it is possible to control the flow even at angles of less than 25°. The ratio is 1:100 in comparison to an ordinary globe valve with a ratio of only 1:30.

Globe valves can be only used in single direction and are limited for shut off applications due to their lower leakage classes. On the opposite, our Tri-Shark solution can be used in both flow directions and with Zero Leakage shut off! The Body design includes a reduced trim, either one or two sizes down from the ordinary pipe diameter, means that the client not only safes the cost for the shut off valve next to his control valve, but also no more pipe reduction or modification is required, that’s the reason why the Tri-Shark control and shut off valve can be installed in the smallest spaces; no matter if in high or low pressure applications or made out of nearly any metallic material grades.

Another great advantage of the Tri-Shark valve is that due to the reduced trim, the actuator size is by far smaller and of course cheaper. Ideal applications are severe and overcritical services, Skids, filling or loading stations, geothermal steam, technical gases ,etc. They are suitable for a wide range of services, from -196°C up to +815°C, including liquids, gases and steam.

Our Valve Repair Centres in Secunda and Durban provide a full valve repair and reconditioning service as well as valve automation to assemble and test your valve packages.

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

Specifications

Series	Tri-Shark - Control Valve Trim
Design	Triple Eccentric / Triple Offset with Throttling Trim Cartridge
Features	SIL3 Certified Stable control with rangeability exceeding 100:1 Field replaceable equal percentage trim cartridge Bi-directional –Class IV, V, VI & Zero leakage Fire-safe design to API 607, BS6755, EN10497 Compact & lightweight 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	80mm to 1800mm / 3” to 72”
Pressure Rating	PN16 – 100 / ANSI 150 – 900
Temperatures	-196°C to +815°C
End Connections	Double flanged / Lug / Wafer
Body Materials	Carbon steel / Stainless Steel / Alloy steels / Special alloys
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	Solid or laminated seal ring High cycle bearings Sealed bearings
Applications	Where you are looking for a control valve with an excellent control range that also offers zero leakage. Severe service for the control of liquids where cavitation control is required and the control of gases and steam where noise attenuation is required.