Fan coil unit central air conditioning Johnson style electric two-way valve 6 minutes DN20

Cast iron flange vertical soundproof check valve, tap water one-way valve

Stainless steel flange electric regulating ball valve

Z11 pressure self tightening forged steel gate valve threaded connection

Forged steel hard seal gate valve threaded connection

Forged steel flange connected gate valve

HVAC pressure differential dynamic balance valve, water flow control, electric regulating valve

Electric differential pressure control bypass valve

Steam self operated temperature regulating valve

Stainless steel flange steam solenoid valve

Steam electric temperature regulating valve

Proportional integral electric two-way valve