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Design
Double-offset butterfly valve with plastomer or metal seat ring (firesafe design); without gland packing, maintenance-free. With lever or gearbox, pneumatic, electric or hydraulic actuator. Body made of cast steel or stainless steel. With wafer type body (T1), full-lug type body (T4) or single-piece doubleflanged body (T7) with flat or raised faces. Body types T4 and T7 can be used for dead-end service. EN, ASME, JIS connections. Certification to TA-Luft.
Application
Petroleum, gas, chemical and petrochemical industry, nuclear power stations, steam, vacuum service. All applications requiring offset disc butterfly valves.
Overview of technical data
| Actuator options available ex works | Hydraulic actuator type ACTO; Pneumatic actuator type DYNACTAIR;Electric actuator type ACTELEC;Pneumatic actuator type ACTAIR |
| Body design | Lug body; Wafer body;Median rib body |
| Valve disc material | 1. 4401;1.4408;GP240GH+N |
| Dimension standard | EN 558- 1/20 ISO 5752/20;API 609 TABELLE 2 CLASS 150;EN 558-1/13 ISO 5752/13;API 609 TABELLE 2 CLASS 300;ISO 5752/F14 |
| Liner material | NI; PTFE;1.4542;1.4404;CU |
| Valve disc/plug material | Soft and metal- to-metal seat |
| Threaded-end design | Tongue and groove design; Wafer-type design;Flange design |
| Body material (EN standard) | 1. 4408;GP240GH+N;1.4401 |
| DN max. | 600 |
| DN min. | 50 |
| eClass assignment | 37010301 |
| Main applications | Industry and process engineering; Energy;Shipping / Shipbuilding;Building services;Oil / Gas |
| Body material | Cast stainless steel; Cast steel |
| PN max. | 50 |
| Maximum temperature | 380 °C |
| Minimum temperature | 50- °C |
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