Additional information
| Marken | Herberholz |
|---|---|
| Funktion | Control valves, On-off valves |
| Industrie | Energy, Petroleum, chemical, Plant engineering & construction, Pulp & paper |
| Anwendung | High temperature, Steam and energy |
Butterfly valve damper
Related products
On/off and control butterfly valves
Type HRD / HRA (Herberholz)
Pressure: max. 2bar
Nominal size: DN15 - DN1200
The throttle valves HRD and HRA are designed as a wafer type valve with a centric valve disc.
Depending on the choice of material, they are designed for operating temperatures up to 1050°C. In the high-temperature version, they have a welded wafer type housing or a one-piece housing.
The throttle valves are suitable for valves according to DIN EN 1092-1 or ASME B16.5 / ASME B16.47, with lengths according to DIN EN 558-1-R20, as well as from DN400 according to the company standard.
The connecting flange is for actuators according to DIN EN ISO 5211.
Testing according to DIN EN 12266.
SIL approval according to ICE 61508 and ICE 61511
Versions:
HRD without seat (leakage approx. 1% of surface equivalent),
HRA metal seated (leakage approx. 0.5% of surface equivalent), HRA with seal ring (leakage approx. 0.3% of surface equivalent),
HRA with metal travel stop ring with seal ring (leakage approx. 0.1% of surface equivalent)
Double eccentric butterfly valve
Type ROCO wave (ERHARD)
Pressure: '10 / 16 / 25 / 40
Nominal size: 150 - 1600
The double eccentric butterfly valve ROCO wave is designed for water applications.
The valve is characterised by high energy efficiency, a flow-optimised design, minimal pressure losses and continuous corrosion protection.
The connection between the shaft and valve disc is covered by a polygon connection.
The double eccentric butterfly valve has a modular actuator concept through the use of a handwheel, electric actuator, stem extension, weight-loaded hydraulic actuator, pneumatic actuator or chainwheel.
Rectangular swing flap gate penstock
Type RC (Orbinox)
Pressure: 1
Nominal size: 150-1400
"The square flap gate type RC from Orbinox is a valve without a housing that is primarily used for waste water, irrigation, hydropower and similar applications.
It is made of stainless steel with an elastomer seal for tight shut-off.
The valve is available in different dimensions and for different pressures."
Plastic butterfly valve
Type EXTREME series (CEPEX)
Pressure: '6 / 10
Nominal size: 50 - 300
The CEPEX plastic butterfly valves can be used to shut off and control liquids.
The valves made entirely of plastic have the advantage that they are resistant to chemicals. The EXTREME series is designed for special requirements and can therefore be used in steel plants, chemical plants or the oil industry.
The plastic butterfly valve can be operated either manually or also automatically and is available in a wide variety of plastics (PVC-U, CPVC, PP-H, PVDF and ABS).