The Classification of Bi-directional Butterfly Valves
According to the connection ends, there are major four types: flanged ,butt welded , wafer and lug type, of which flanged butt welded types are the most common ones.
According to the operation, the valve can be operated by worm gear, electric actuator, pneumatic actuator, hydraulicactuator, and so on.
According to the pressure rating, there are low pressure (PN ≤ 16), medium pressure (PN25-PN63), and high pressure (PN100-PN800)
According to the structures, there are multi-layer hard sealing (SS304+ graphite, SS316+ graphite, etc.), multi-layer soft sealing (SS304+PTFE, SS304+RPTFE, etc.),
hard to hard sealing (SS304, SS316, etc.)
According to the material , it has cast steel, stainless steel,duplex stainless steel , and etc., among which cast steel is the most common used material.
JONLOO is a professional manufacturer of Bi-directional butterfly valves and can produce bi-directional triple-eccentric butterfly valve with hard sealing and soft sealing.
The pressure rating ranges from PN1 to PN100, 150LB to 600LB, and size ranges from DN50 to DN1600, NPS2 to NPS60. The valves can be zero leakage at both directions.
According to the operation, the valve can be operated by worm gear, electric actuator, pneumatic actuator, hydraulicactuator, and so on.
According to the pressure rating, there are low pressure (PN ≤ 16), medium pressure (PN25-PN63), and high pressure (PN100-PN800)
According to the structures, there are multi-layer hard sealing (SS304+ graphite, SS316+ graphite, etc.), multi-layer soft sealing (SS304+PTFE, SS304+RPTFE, etc.),
hard to hard sealing (SS304, SS316, etc.)
According to the material , it has cast steel, stainless steel,duplex stainless steel , and etc., among which cast steel is the most common used material.
JONLOO is a professional manufacturer of Bi-directional butterfly valves and can produce bi-directional triple-eccentric butterfly valve with hard sealing and soft sealing.
The pressure rating ranges from PN1 to PN100, 150LB to 600LB, and size ranges from DN50 to DN1600, NPS2 to NPS60. The valves can be zero leakage at both directions.
