Industry: Power Generation
HP Valves – FS Stop-Check (SDNR) Fig 03.3 PN160-640
Accutrak – 2200-2600 Valve Switch Box Ex
HP Valves – FS Blow Down Fig 09.3 PN160-640
HP Valves – FS Gate Fig 06.6 DN10-100 PN160-500
HP Valves – FS Check Fig 05.2 DN10-50 / PN160-640
HP Valves – FS Globe Fig 01.1 PN160-640
HP Valves – FS Globe Fig 01.3 Angle PN160-640
HP Valves – FS Blow Down Fig 09.3.9 PN160-640
HP Valves – FS Globe Fig 02.1 Throttle PN160-640
HP Valves – FS Stop-Check (SDNR) Fig 03.6 PN160-640
HP Valves – FS Check Fig 00.6 DN65-100 / B160-5000
HP Valves – FS Check Fig 04.6 DN10-50 / PN160-640
HP Valves – FS Check Fig 04.1-04.2 PN160-640
JC Valves – Fig 6000FB / 7000RB Trunnion Valve
JC Valves – Fig 2500 CS Trunnion Ball Valve
JC Valves – Fig 800/81500 3 Piece FS Ball Valve
Arca – ANGLEVENT VALVE 340 / 350 / 380
Richter – RMI / RMA Lined Magnetic Drive Pump
Richter – MNK Magnetic Drive Pump
Richter – SCK Lined Mechanical Sealed Pump
Zwick – Tri-Check Large Bore Check Valves
Zwick – Tri-Con Gate Valve Replacement
Zwick – Tri-Shark Control Valves
Actreg – SY Hydraulic Scotch Yoke Actuators
Actreg – RP Pneumatic Valve Actuators
Zwick – Tri-Con Triple Offset Valve
Engineered for absolute shut-off in the most demanding gas and liquid applications.
The Zwick Tri-Con triple offset valve is engineered for zero-leakage performance, even under extreme temperature variations and pressure peaks. With the widest laminated seal ring in the market, it provides unmatched durability and long-term sealing integrity, ensuring leak-free operation in critical gas and liquid services.
For technicians, engineers and production managers, this means:
- Longer production runs, with fewer shutdowns
- No costly or dangerous leaks, protecting the environment and process efficiency
- Reduced seat wear, thanks to frictionless cone-in-cone sealing for smooth, low-torque operation
- Lower installation costs—lighter weight and smaller installation envelope, reducing the need for large cranes, extended rigging crews, or costly modifications when replacing older gate valves
The frictionless triple offset seating design eliminates break-away torque, reducing actuator wear and enabling smooth operation—minimising maintenance and extending valve life.
With proven installations across synthetic fuels, oil & gas, chemical, and power generation industries in South Africa, the Tri-Con is available in double flanged, wafer, lug, butt weld and gate valve face-to-face configurations. It’s also ideal for oxygen service and steam-jacketed applications such as molten sulphur.
Our Valve Repair Centres in Secunda and Durban provide full valve reconditioning, automation, and testing services, keeping your Zwick Tri-Con in peak operating condition.
NAF – Setball Ball Sector Control Valve
NAF – Torex H.P. Butterfly Valve
NAF – D30 Intelligent Valve Positioner
Zwick – (SIL 3) Emergency Shutdown Valves (ESD)
Stafsjö – HL and HG Through Going
HP Valves – FS Gate Fig KJP DN80-600 PN250-500
Actreg – SY Pneumatic Scotch Yoke Actuator
Schroeder – SMA Automatic Recirculation Valve
Schroeder – SSD Multi-port Throttle
Schroeder – SDV Back Pressure Device
Stafsjö MV Standard Knife Gate Valve
JC Valves – Fig 515/530 ANSI 150-300 FB Ball Valve
JC Valves – Fig 3515/3530 Metal Seat Ball Valve
Pibiviesse – Cage Ball Control Valve
Pibiviesse – Top Entry Trunnion Mounted
Richter – KN PFA Lined Ball Valve
Heavy-Duty Corrosion Protection and Shut-Off
The Richter KN PFA-lined ball valve is engineered for reliable shut-off and control in aggressive, corrosive and metal-reactive chemical duties where metallic valves cannot maintain long-term sealing integrity. Its thick fluoropolymer lining, robust ductile iron or steel body, and ENVIPACK stem sealing system deliver dependable performance under thermal cycling, vacuum conditions and high-corrosion environments.
Designed as a modular valve family—including KN, KNA, KNR, KNAR and KA-N variants—the series supports shut-off, control and drain duties from a single platform. This allows engineers to standardise on one system while specifying different body configurations, end connections and automation options to suit process requirements. PFA or antistatic PFA-L linings provide proven permeation resistance and protect wetted parts in applications involving strong acids, halogenated compounds, pickling solutions and high-purity chemicals.
Its low operating torque, high dimensional stability and actuator compatibility help maintain operational reliability across chemical production, minerals processing and high-purity manufacturing environments.
With decades of proven performance in acid, HF, HNO₃, pickling, and ultrapure chemical services, the Richter KN series is the go-to choice when standard materials fall short.
For technicians, engineers and production managers, this means:
- Longer service life — Thick PFA/PFA-L lining and ENVIPACK stem sealing reduce chemical attack and minimise wear in corrosive or metal-reactive media.
- Reliable shut-off and control — Precision ball and seat geometry maintain tight isolation and stable throttling under varying process conditions.
- Lower maintenance effort — Zero-adjustment stem sealing and corrosion-resistant construction reduce intervention frequency and maintenance downtime.
- Improved plant availability — Durable lining anchoring and robust body design limit failures caused by blistering, permeation or thermal distortion.
- Operational flexibility — Modular variants (KN, KNA, KNR, KNAR, KA-N) allow one valve family to cover shut-off, control and drain applications across the plant.
- Reduced environmental risk — ENVIPACK low-emission stem sealing supports fugitive-emission compliance in hazardous and regulated areas.
- Simplified automation — Low torque requirements ensure compatibility with pneumatic and electric actuators without compromising sealing integrity.