Zwick – Tri-Con Triple Offset Valves (TOV)Enquire Now

Zwick 8211 TriCon Triple Offset Valves TOVZwick 8211 TriCon Triple Offset Valves TOVZwick 8211 TriCon Triple Offset Valves TOV

BRAND: ZwickCATEGORY: Control Valves, Triple Offset Valves,

The Zwick Tri-Con triple offset valve is a metal seated valve with the widest laminated seal ring in the market today. Also known as triple eccentric valves or triple offset butterfly valves, the unique design and special features guarantee 100% zero-leakage performance even during extreme temperature variation and pressure peaks.

This 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.

The most popular configuration is double flanged even though wafer, lug, but weld and gate valve face to face are all readily available. Zwick’s proven design provides 100% tightness in gas services enabling it to be used for critical liquid and gas services. They are ideal for oxygen service and are available with steam jackets for molten sulphur or applications where media temperature must be kept with specific temperature parameters.

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 brochure to learn more!

Specifications

SeriesTri-Con - Triple Offset Valves
Design

Triple Offset / Triple Eccentric Rotary Valve

Features
  • SIL3 Certified
  • 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 2200mm / 2” to 88”

Pressure
Rating

PN6 – 250 / ANSI 150 – 900

Temperatures-196°C to +815°C
End
Connections		Double flanged / Lug / Wafer / Buttweld / Gate valve face to face
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
Applications

Where you are looking for an isolation, on/off or control valve that provides zero leakage, and has a proven track record with companies like Sasol, Sapref, Engen, Eskom, Sappi, Mondi and many others for applications like,

Brochures

MechChem Africa Cover July-August 2020 (2) Zwick – Company Overview (7 Pages) Zwick – Catalogue & Data Sheets (56 Pages) Zwick – Tri-Con – Vs. Gate & Ball (1 Page) Zwick – Tri-Con Sealed Bearing (3 Pages) Zwick – Tri-Con Cryogenic Valve (2 Pages) Zwick – Tri-Con App. – Molecular Sieve (2 Pages) Actreg – RP Pneumatic Actuators (16 Pages) Actreg – SY Pneu. Scotch Yoke Actuators (20 Pages) PMV – Valve Positioners (8) NAF – Turnex Pneumatic Control Actuator (8 Pages) PMV – D30 Valve Positioner – Specs (8)

Certificates

Zwick – Cert. API-641.pdf (1 Page) Zwick – Cert. DGRL/PED2014/68/EU (2 Pages) Zwick – Cert. TA Luft (2 Pages) Zwick – Cert. ISO15848-1 (1 Page) Zwick – Cert. Fire Test ISO10497 / API607 (4 Pages)

Videos

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