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Bidirectional Flow Rotary Ball Valve

Bidirectional Flow Rotary Ball Valve

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  • Bidirectional Flow Rotary Ball Valve
  • Bidirectional Flow Rotary Ball Valve
  • Bidirectional Flow Rotary Ball Valve
  • Bidirectional Flow Rotary Ball Valve

Bidirectional flow Hard-seal Rotary Ball Valve is the lasts product we developed to meet the market need based upon our many years experience in valve manufacturing, using and servicing.

Its advantages include:

1. Bidirectional flow Hard-seal Rotary Ball Valve Can be cut off under the positive pressure and be cutt off too under the negative pressure when negative pressure is stronger than the positive pressure ;

2. Bidirectional flow Hard-seal Rotary Ball Valve was developed based on the ball valve’s advantage and butterfly valve’s construction performance which have the ball valve’s outstanding features. dual sealing, adjustable,long service time as well as butterfly valve’s characters. small volume, light weight.

Bidirectional flow Hard-seal Rotary Ball Valve essence is butterfly type eccentric half ball valve.
Bidirectional flow Hard-seal Rotary Ball Valve sealing principle combined trunnion ball valve’s front seal and eccentric butterfly valve’s compulsory seal so that it can be closed under the condition of high pressure and low pressure.

3. To meet with different need for hardness, two seal faces of the seal pair can be applied with plasma coating, vacuum protective penetration surfacing, or other advanced processes to form martensitic stainless steel, austenitic stainless steel, carbide, cermet, and artificial diamond functionally gradient materials;

4. Self-centering and automatic wear compensation over distance;

5. Make full use of the energy of medium inside the valve for valve closing, and add extreme high sealing pressure automatically to achieve reliable zero leakage at the seal pair;

6. Instant closing and opening of the seal pair without friction in between. When being opened, the spool projected cross section contracts and retracts continuously, with a higher retracting speed than the contracting speed at the beginning stage of opening. When being closed, the spool projected cross section expands and advances continuously, with a higher expanding speed than the advancing speed at the beginning stage of closing and higher advancing speed than expanding speed at the final stage of closing. This valve combines the characteristics of eccentric half-ball valve, globe valve and wedge gate valve.

7. Mainly similar to butterfly valves, it features short construction and compact size, and therefore can be made to have large bore, extra-large bore and super-large bore.

8. This valve combines the functions and advantages of butterfly valve, semi-ball valve, gate valve and globe valve in addition to absolutely different strengths unique to it. Due to compact size, light weight, easy and convenient transportation, installation, maintenance and repair, and reliable operation, this valve becomes another major technical revolution in valve industry.


Drive Mode
1:Handle
2: Gear
3: Actuator
4:Pneumatic
5:Hydraulic

Seal surface material
1: Stainless steel
2: Alloy

Connection types
1: Flange
2: Wafer

Pressure
0.6Mpa, 1.0 Mpa, 1.6Mpa, 2.5Mpa, 4.0Mpa
Body material
Cast iron, ductile iron, WCB, Stainless steel,1Cr18Ni13MoTi, 1Cr18Ni12MoTi

Test Pressure
Size Normal pressure (Mpa) Test pressure Temperature Medium
shell  positive seal negative seal
DN50-DN3000 0.6 0.9 0.66 0.66 0-80℃ /          0-200℃ clear water, Sewage,oil
1.0  1.5 1.1 1.1
1.6  2.4 1.76 1.76
2.5  3.75 2.75 2.75
4.0  6 4.4 4.4


Standard
Flange  GB/T9113-2000
ASME B16.5
Length of face to face GB/T12221-2005
ASME B16.10
Pressure test GB/T13927-1992
API
Design & production GB/T12237-1989/GB/T 12238-1989
API


Size Information
Flange connection, 0.6Mpa pressure, GB standard
Size(mm) Length Flange OD Distance of flange hole
50 88 140 112
65 108 160 115
80 124 190 120
100 144 210 138
125 174 240 164
150 199 265 175
200 254 320 200
250 309 375 230
300 363 440 260
350 413 490 300
400 463 540 340
450 518 595 350
500 568 645 380
600 667 755 450
700 772 860 480
800 878 975 530
900 978 1075 580
1000 1078 1175 650
1200 1295 1405 760
1400 1510 1630 850
1600 1710 1830 1030
1800 1918 2045 1230
2000 2125 2262 1350
2200 2340 2485 1380
2400 2540 2685 1400
2600 2740 2905 1500
2800 2960 3020 1610
3000 3160 3220 1720
Bidirectional flow Hard-seal Rotary Ball Valve can be used on the pump exit and other places which needs bidirectional valves, such as the Pipe network system, water recycling system, high sink, Sewage system which is easy to flood, anti-backflow system etc.

Application field: Metallurgy, Mine, petrochemical, Electric, Environmental protection, Municipal.

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