Product name:Manual vacuum butterfly valve
Nominal Diameter：32～400mm
Suitable Temperature: -30～+80℃
Suitable for:
≤1.3x10-5 Pa.L/S(and the positive and)
Gas leakage rate:105～6.7×10-5Pa
The main materials:Cast steel, stainless steel
Next product：Electric vacuum butterfly valve
Backe product：Pneumatic ceramic single gate
