Absolutely tight, versatile, durable and safe
- Reliably tight - even in harsh industrial environments
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Performance features at a glance
Maximum closing force with minimum effort because the contact angles are optimised with our special geometry optimisation software.
Self-aligning sealing ring facilitates thermal compensation and ensures leak-tightness regardless of temperature variations.
Laminated stack made of stainless steel and graphite lends additional elasticity to the sealing ring. Double sealing mechanism in the form of a special, spiral-wound gasket made from a heat-resistant elastic material.
Triple offset design guarantees a frictionless swivel movement of the sealing ring into the seat.
The ZETRIX® process valve seals according to the area seating principle; the required contact pressure is applied via the actuator, which can be switched off as a function of the torque.
The ZETRIX® process valve is extremely versatile. It can be used as a pipe-end valve on both sides. The bracket for mounting the actuator is defined according to ISO 5211. The neck length allows insulation thicknesses in line with industrial standards.
Optimal durability because even the standard version has a stellited seat.
- Technical profile
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Modern development methods
Finite element method
The finite element method (FEM) is a numerical calculation technique that was used to simulate the stresses and their distribution occurring in the ZETRIX® process valve. The aim was to achieve the required strength at pressure load levels in combination with an optimal weight and a flow friendly shape.
State-of-the-art flow simulations
The twofold objective of uniform flow and high flow capacity was realised with the aid of special flow software. The software simulations enable the flow velocity, flow direction and pressure distribution to be visualised. Due to the optimised ZETRIX® geometry, turbulences are reduced to a minimum and pressure loss optimized.
Rigorous tests
“Firesafe” is a basic stipulation in many of the environments where the ZETRIX® process valve is used. As a triple offset 90° process valve with a tight metal seal, ZETRIX® meets all requirements before, during and after the fire. The test was performed according to ISO 10497, API 607 6th Edition
Characteristic measurements
The flow values at different opening angles were measured in an accredited testing laboratory. The resulting curves were used to determine the control characteristic of the ZETRIX® process valve.
Contact angle calculation
The peripheral closing angle was optimised to ensure that the valve opens and closes without sticking and without friction. Our sizing software allows the contact angle at the perimeter of the ZETRIX® process valve seat to be visualised.
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High-precision manufacturing
The valve bodies are manufactured on fully automatic, CNC controlled machining centres. Our CNC programs are written on the basis of CAD data and transferred to the control online. The workpieces are clamped in specially designed fixtures that guarantee maximum machining stability and short set-up times.
The sealing surface is armoured with Stellite® by a fully automatic welding robot with an integrated measuring system. All CNC programs are developed by our expert in-house programmers. Synchronising the eight axes of the welding system represents a particularly challenge.
The three-dimensional measuring system allows the process valves to be compared with 3D data, which is subsequently evaluated and saved on a PC. The measurements are carried out directly in the machine to ensure reliable production processes.
Every ZETRIX® process valve is leak-tested according to DIN EN 12266. The test pressures and times are stored on our computer aided test bed. Special tests can also be performed at the customer’s request.
- Design
- Durability
- Safety
- Options
- Video: Quick closing in 0,6 sec
ARI-Armaturen Albert Richter GmbH & Co. KG