Double offset butterfly valve (high performance)
80 - 1 200 mm | 39004 series
MASONEILAN
The Dresser Masoneilan 39000 Series features a double offset disc design that moves the disk away from the seal ring as the valve opens. Consequently, friction and operating torque requirements are reduced. What's more, rugged guiding ensures reliable, long term shut-off and throttling accuracy. High Cv ratings provide high capacity capability at low pressure differentials, and flangeless (wafer) or single flange (lugged) body constructions are available to suite installation requirements. TFE, RTFE and flexible metal seals provide Class IV (metal) or Class VI (PTFE / RTFE) shut-off.
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