斯派莎克SpiraxSarco截止阀 斯派莎克SpiraxSarco波纹管截止阀 斯派莎克SpiraxSarco蒸汽截止阀 斯派莎克SpiraxSarco法兰截止阀 英国斯派莎克SpiraxSarco截止阀 英国SpiraxSarco斯派莎克波纹管截止阀BSA1、BSA2、BSA3、BSA6T、BSA64T、A3S 、HV3截止阀、DBB3双流双关波纹管密封截止阀。 Gate valvesGate valves are probably the most common valves in use today due to their widespread use in domestic water systems, but it should be noted that their popularity in industry has declined in recent years. However, they are still used where an uninterrupted flow is required, because the gate fully retracts into the bonnet, creating a minimal pressure drop, when the valve is in an open position. Gate valves are specifically intended for use in isolation applications. Fig. 12.1.1 Typical wedge gate valve
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供应斯派莎克SpiraxSarco截止阀