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
PTFE lined butterfly valve
Type Typ CST economyLine (ChemValve-Schmid)
Pressure: 10 (16)
Nominal size: 25 - 1200
The ChemValve-Schmid butterfly valve CST is the world’s leading modular PTFE lined butterfly valve.
The PTFE lined valve is produced to the highest quality standards for the safe handling of aggressive media. It is designed for the use with highly chemical media and is therefore used in almost all industries.
Spherical structural elements reduce friction and therefore increase the service life.
Soft seated, butterfly valve
Type GRW (Zwischenflansch) / GRL (Anflansch) (Emerson)
Pressure: 16bar (DN20-DN300) 10bar(DN350-DN900)
Nominal size: DN20-DN900
“The Emreson resilient seated butterfly valve is a centric butterfly valve with a split shaft (up to DN300), rounded polished disc edge, centring bores on the valve housing and an extended valve neck allows for pipe insulation.
The type GRW is designed as a wafer type valve and the GRL as a flanged type valve according to EN558 series 20, with a spheroidal cast iron housing and a disc in 1.4408 steel. “
Butterfly valve Hydromat®
Type Hydromat® (Tröger + Entenmann)
Pressure: '10 / 16
Nominal size: 150 - 1400
Der HYDROMAT® ist eine extrem robuste Absperrklappe mit zentrisch gelagerter Klappenscheibe, die durch bewährte konstruktive Merkmale eine jahrzehntelange Betriebssicherheit gewährleistet und somit Kosten spart, da keine unnötigen Reparaturen anfallen.
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)