RIEGER ESV hygienic single-seat valves are used whenever maximum productivity, safety and quality are required. They can be found in plants in the dairy industry, the food industry, the pharmaceutical and chemical industries and biotechnology.
The advanced valve concept, proven a thousand times over in daily use, guarantees a high degree of flexibility within the individual series. RIEGER ESV hygienic single-seat valves guarantee our customers the perfect problem solution for their liquid products.
Thanks to the modular system, the conversion from hygienic to aseptic design, from “air-opening” to “air-closing” is possible without any problems. The dimensions can also be adapted to the conditions on site.
Material | product touched optional not in contact with the product |
1.4404/AISI316L 1.4435/AISI316L 1.4301/AISI304 |
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Seals | O-rings/seals | EPDM (others on request) |
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Temperatures | maximum | EPDM | |
Continuous operating temperature
Sterilization temperature |
130 °C*
150 °C* short term |
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Press | Closing pressure
Control air pressure |
max. 6 bar
min 6 bar – |
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Surfaces | product touched optional not in contact with the product |
Ra ≤ 0.8 µm e-polished, other surfaces on request Ra ≤ 1.6 µm |
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Connections Standard Pipe classes |
DIN 11850-R2 (DIN 11866 A) O.D. tube (DIN 11866 C) DIN EN ISO 1127 (DIN 11866-B) |
Absolute product protection |
Technically vacuum-safe
Securely chambered profile seal on the spindle of the hygienic single-seat valves Axial sealing with O-rings in the valve seat No migration behind the O-rings due to unique O-ring groove No screw connections in the product chamber thanks to one-piece valve discs
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Service friendliness |
Gasket replacement without special tools Drives completely maintainable Actuators can be converted from spring-closing to spring-opening and vice versa Low control air requirement Valve insert can be removed upwards
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Economic efficiency | Upgrade to aseptic version possible
Low pressure loss Spherical housing prevents dome and sump in the valve Full-stroke design shortens cleaning time with viscous media |
The Rieger control head was developed in collaboration between AWH and Rieger together with Bürkert.
Rieger thus offers you a tailor-made solution for your in-house hygienic and aseptic process valves so that they can be used even more efficiently and accurately.
NON-CONTACT INDUCTIVE VALVE POSITION DETECTION (TEACH FUNCTION)
The FlowStar is available in 24 V DC, AS-I bus, IO-Link (Port Class A) or Ethernet IP versions.
All versions are available as the following alternatives:
Mounting kit integrated in the control head – no separate mounting kit required. Exception for LCV valves, ESV valves.
All valves are available in special materials such as Hastelloy® C-22, 1.4539/904L, 1.4529, AL-6XN® and others .
Please contact us directly:
sales@rr-rieger.de
Phone: +49 7361 5702-0