Design
Double-offset butterfly valve with plastomer seat ring (also in firesafe design) or metal seat ring. With lever or gearbox, pneumatic or electric or hydraulic actuator. Body made of cast steel or stainless steel. Wafer type body (T1) or full-lug type body (T4). Body type T4 is suitable for dead-end service and downstream dismantling. EN, ASME, JIS connections.
Application
Petroleum, gas, chemical and petrochemical industry, nuclear power stations, sugar industry, paper industry, geothermal energy, shipbuilding, low-pressure steam, vacuum service. All applications requiring offset disc butterfly valves.
Overview of technical data
Actuator options available ex works | Hydraulic actuator type DYNACTO; Pneumatic actuator type ACTAIR;Electric actuator type ACTELEC;Pneumatic actuator type DYNACTAIR |
Body design | Lug body; Wafer body |
Valve disc material | 1. 4408;1.4401 |
Dimension standard | EN 558- 1/20 ISO 5752/20;API 609 TABELLE 2 CLASS 150;(DN350 ISO 5752/25) |
Liner material | 1. 4310;PTFE |
Valve disc/plug material | Soft and metal- to-metal seat |
Threaded-end design | Screwed flange design; Wafer-type design |
Body material (EN standard) | 1. 4408;1.0619 |
DN max. | 1000 |
DN min. | 50 |
eClass assignment | 37010301 |
Main applications | Shipping / Shipbuilding;Industry and process engineering;Building services;Oil / Gas;Energy |
Body material | Cast steel; Cast stainless steel |
PN max. | 25 |
Maximum temperature | 260 °C |
Minimum temperature | 50- °C |