I unit production of all kinds of butterfly valves classified

Release time：2012-10-27 19:42:52 Source：Zhengzhou Butterfly Valve Factory Co., Ltd. Browsing times：get_hits(162,1,0,"show_i_hits")

The unit production of valves can be classified into the following categories:
One, the midline butterfly valve
1 clip on butterfly
2 double flanged butterfly valve
The 3 telescopic butterfly valve
Two, eccentric butterfly valve
1 double eccentric two-way sealed butterfly valve flange
The 2 telescopic double eccentric two-way sealed butterfly valve
3 eccentric metal sealing butterfly valve
The 4 telescopic double eccentric metallic sealing butterfly valve
5 eccentric metal sealing butterfly valve and double flange
The 6 telescopic eccentric metal sealing butterfly valve and double flange
7 pairs of clamp type metal sealing butterfly valve
8 eccentric hard seal ball valve
Three, check valve
1 swing check valve
The 2 check valve on the clip-on
3 Butterfly micro-resistance slow-closing check valve
4 hydraulic slow closing check valve
A 5 accumulator type night slow closing check valve
6 weight type hydraulic slow closing check valve
Four, flue gas butterfly valve
1 high temperature ventilating butterfly valve
2 air valve
The 3 shutter valve
4 electro-hydraulic push rod butterfly valve
Five, telescopic device
1 small thrust type telescopic device
The 2 ends of the flange disc type limit expansion joint
3 sets of telescopic Street
4 limit expansion joint
5 load transfer joint
6 flexible rubber joint
Six, the sewage treatment equipment
1 manual hoist
2 electric hoist
3.SYZ, SYTZ, SFZ, SFTZ cast iron ( with copper ) gate
A 4 diaphragm type hydraulic angle type exhaust valve
The 5 tide gate ( gate )
6 pairs of clamp type knife gate valve
Seven, other types of valves
The 1 cut-off valve
The 2 gate
The valve has the following classification:
1, in the form of the structure classification
( 1) the center sealing butterfly valve ( 2) single eccentric sealing coal valve ( 3) double eccentric seal butterfly valve ( 4) three eccentric sealed off valve
2, in the form of the structure classification
( 1) of soft sealing butterfly valve
1) seal by non-metal soft material on non-metal soft material.
2) seal consists of a metal hard material on non-metal soft material.
( 2) metal hard seal butterfly valve sealing pair consists of a metal hard material on metal hard materials.
The 3 seal according to classification
( 1) forced sealing butterfly valve
1) flexible sealed butterfly valve. Sealing pressure by a valve closing valve plate extrusion seat, seat or valve plate elastic production.
2) external torque seal butterfly valve. Sealing pressure from the outside to the valve shaft torque produced.
( 2) pressurizing sealing butterfly valve. Sealing pressure is composed of a valve seat or on the valve plate elastic component sealing element pressure generation.
( 3) automatic seal butterfly valve. Sealing pressure by the pressure of the medium automatic generation.
4 by working pressure classification
( 1) vacuum butterfly valve the working pressure is lower than the standard pressure butterfly valve
( 2) low nominal pressure PN<1.6MPa butterfly valve butterfly valve
( 3) medium pressure valve nominal pressure PN 2.5--6.4MPa butterfly valve
( 4) and pressure valve nominal pressure PN 10. 0--80.0MPa butterfly valve
( 5) super high pressure valve nominal pressure PN>100MPa butterfly valve
By 5 working temperature classification
( 1) t>450℃high temperature butterfly valve butterfly valve
( 2) in 120℃temperature butterfly valve
( 3) a 40 ℃temperature butterfly valve
( 4) a 100 ℃low temperature butterfly valve
( 5) t< 100 ℃cryogenic butterfly valve butterfly valve.
6 by connection classification
( 1) of the wafer butterfly valve
( 2) the flange type butterfly valve
( 3) supporting lug type butterfly valve
( 4) welded butterfly valve
7 according to the driving form
Manual, worm gear drive, electric, pneumatic, hydraulic, electro-hydraulic linkage actuator.