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GQ47H、GQ47F Type a manual top mounted rail ball valve

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    Usually, in the process of valve opening and closing, due to different environment and pressure rise, the torque of valve opening will be increased, which will cause seat wear and increase of driving device. The spool of rail ball valve is increased by mechanical contraction action device.

Product overview

Usually, in the process of valve opening and closing, due to different environment and pressure rise, the torque of valve opening will be increased, which will cause seat wear and increase of driving device. The spool of rail ball valve is increased by mechanical contraction action device. The valve core of track ball valve is pulled away from the valve seat by mechanical contraction action. When the valve core rotates, it does not contact the valve seat and does friction free transmission. When the valve is closed, it is sealed by mechanical pressurization, which means that the economical driving device can be used and sufficient driving force can be ensured to switch the valve. Due to the unique structure design of the orbital ball valve, the switch has no wear and good shut-off performance, which can meet the requirements of various harsh working conditions. The fireproof design and all metal structure design can adapt to various working temperatures from low temperature - 2001 to Zui high + 600 ° C, as well as the special requirements of working conditions including particles and fibers. For standard sulfur resistant rail valve, the material of valve contact medium is designed according to the requirements of NACE mr01-75, and strict quality control is carried out in the manufacturing process. Features of gq47h and gq47f manual top mounted rail ball valves: for traditional ball valves, whether floating or fixed, the ball and valve seat are always in contact, and the switching torque is large, and the sealing surface is easy to be damaged. When the track ball wheel is opened and closed, the ball first deflects and then rotates. During the whole process of opening and closing, the ball and the valve seat are separated, so the valve seat will not be scratched, and the opening and closing torque is small. Gq47h and gq47f manual top mounted rail ball valves are widely used in urban construction, chemical industry, metallurgy, petroleum, pharmaceutical, food, beverage, environmental protection, etc.

Product overview
GQ47H、GQ47F Material of main parts and components of type a manual top mounted rail ball valve
Part name Material Science
Valve body WVB ZG1Cr5Mo 18-8CrNi 18-12CrNiMo
Valve cover WVB ZG1Cr5Mo 18-8CrNi 18-12CrNiMo
Stem 2Cr13 38CrMoA1 1Cr18Ni9Ti 1Cr18Ni12Mo2aTi
Sphere WCB+HCr 1Cr5Mo 18-8CrNi 18-12CrNiMo
Valve seat PTFE/13Cr/CrNi  SS+STELLITE
Stud B7/35CrMoA 1Cr17Ni2
Nut 2H/45 2Cr13
Filler PTFE/Reinforced flexible graphite
Connection size

GQ47H、GQ47F Main connection dimensions of type-I manual top mounted rail ball valve PN 1.6 ~ 2.5 MPa(mm)
DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500
L 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980 1100 1200 1250
H1 220 230 240 260 307 360 410 483 512 543 581 617 672 723 758 791 828 870
H2 450 486 525 550 610 640 640 675 710 740 820 905 955 990 1050 1100 1270 1450
H3 415 455 500 535 580 605 605 620 640 685 735 850 900 920 1100 1250 1340 1555
H4 370 400 440 460 480 500 550 600 650 713 760 820 875 930 962 1020 1285 1625

 

GQ47H、GQ47FMain connection dimensions of PN4.0MPa manual top mounted rail ball valve(mm)
DN 15 20 25 32 40 50 65 80 100

125

150 200 250 300 350 400 450 500
L 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980 1100 1200 1250
H1 230 240 260 280 320 360 436 492 527 607 649 701 750 750 790 832 875 910
H2 486 525 550 610 640 640 675 710 740 820 905 955 990 105 1100 1270 1450  
H3 455 500 535 580 605 605 620 640 685 735 850 900 920 1100 1250 1340 1550  
H4 400 440 460 480 500 550 600 650 713 777 835 890 950 980 1040 1305 1650  
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