Product working principle and use:
Q41N Forged steel flange type high pressure ball valve closure ball around the center line of the valve body for rotation to achieve the opening and closing of a valve, the seal is embedded in the stainless steel seat, the metal seat with a spring at the end, when the sealing surface wear or burn, under the action of the spring to push the seat and the ball to form a metal seal. It has a unique automatic pressure relief function, when the pressure of the medium in the valve cavity exceeds the spring preload force, the outlet end of the valve seat is withdrawn from the ball, to achieve automatic pressure relief effect, and the valve seat automatically returns after pressure relief, suitable for water, solvent, acid and natural gas and other general working media, but also suitable for poor working conditions of the media, such as oxygen, hydrogen peroxide, methane and ethylene, etc. It has been well applied in various industries.
Product structure features:
1. All parts of this product are forgings.
2, the use of bottom-mounted valve stem, set the reverse seal structure, to ensure that the packing place reliable seal and prevent the valve stem out.
3, the use of Mosaic valve seat. The O-ring is arranged behind the seat to ensure that the medium does not leak out.
Product performance parameters:
Nominal pressure PN 16 32 MPa
Strength test pressure PT 24 48 MPa
Low pressure seal test force 0.6MPa
High pressure seal test force 17.635.2MPa
Applicable medium water, oil, steam
Applicable temperature -40 ~ 80℃
Product main parts materials:
Part name Material
GB ASTM
Body, bonnet WCB A216-WCB
Sealing ring nylon nylon
Sphere 1Cr18Ni9Ti SS 304
Seat, stem 2Cr13 A246-416
O-ring rubber rubber
Stud 35CrMoA A193-B7
Product main size:
nominal
Nominal pressure
Diameter main dimensions
L L1 D D1 H W M D2 b Z-Φd
Flange to weld flange to weld flange to weld flange to weld flange
16.0 10 210 150 52 60 95 90 60 18 77 58 220 M24×2 18 20 3-18
15 230 170 62 70 95 100 60 23 85 62 220 M24×2 20 20 3-18
20 240 190 73 80 105 110 68 29 94 75 250 M33×2 28 20 3-18
25 260 205 77 95 105 115 68 36 100 80 250 M33×2 28 22 3-18
32 300 230 100 110 115 150 80 43 120 96 300 M42×2 38 24 4-18
40 260 110 120 165 170 115 49 150 111 400 M52×2 48 30 6-26
50 400 330 130 140 165 200 115 61 165 128 450 M64×3 58 32 6-26
65 490 360 140 150 200 225 145 80 180 180 500 M80×3 74 40 6-29
80 580 380 150 160 225 270 170 105 200 200 600 M100×3 94 50 6-33
100 620 430 178 188 260 320 195 118 245 245 800 M125×4 115 60 6-36
32.0 10 210 150 52 60 95 90 60 18 77 58 220 M24×2 18 20 3-18
15 230 170 62 70 105 100 68 23 85 62 220 M33×2 28 20 3-18
20 240 190 73 80 105 110 68 29 94 75 250 M33×2 28 20 3-18
25 260 205 77 95 115 115 80 36 100 80 250 M42×2 35 25 4-18
32 300 230 100 110 165 150 115 43 120 96 300 M52×2 41 30 4-22
40 350 260 110 120 165 170 115 49 150 111 400 M64×3 47 35 6-26
50 400 330 130 140 200 200 145 61 165 128 450 M80×3 70 40 6-29
65 490 360 140 150 225 225 170 80 180 180 500 M100×3 90 50 6-33
80 580 380 150 160 260 270 195 105 200 200 600 M125×4 112 55 6-36
100 620 430 178 188 300 320 235 118 245 245 800 M155×4 135 65 8-36
Product working principle and use:
Q41N Forged steel flange type high pressure ball valve closure ball is rotated around the center line of the valve body to achieve the opening and closing of a valve, the seal is embedded in the stainless steel valve seat, the metal valve seat is provided with a spring, when the sealing surface is worn or burned, under the action of the spring
