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Unitary Pneumatic High Temperature Ball Valve

manufacturer: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 0086 (021) 3652 8716
Mob: (0086) 138 1635 6498

product drawing

Q641 pneumatic unitary high temperature ball valves
Q641 pneumatic unitary high temperature ball valves

Structural features and active principle

The ball and the sealing ring of this type ball valve, use special processing technology and the latest sealing material, to make the ball surface roughness and roundness achieve the standard requirement. Thereby enhancing the sealing performance and service life, high temperature resistance capability. Clockwise moving the handle to promote stem-driven ball rotation, so that the media passs smoothly.

Structure

Q641 pneumatic unitary high temperature ball valve structural diagram
Q641 pneumatic unitary high temperature ball valve structural diagram
model specification dimensions
L D D 1 D 2 z-φd H b
QQ641PPL -16 15 115 95 65 45 4-14 85 14
20 130 105 75 55 4-14 95 16
25 140 115 85 65 4-14 103 16
32 165 135 100 78 4-18 105 18
40 180 145 110 85 4-18 120 18
50 200 160 125 100 4-18 195 20
65 220 180 145 120 4-18 195 20
80 250 195 160 135 8-18 215 22
100 280 215 180 155 8-18 255 24

Technical parameter

model nominal pressure(MPa) intensity test pressure (MPa) sealing test pressure (MPa) suitable temperature (℃) applicable medium
QQ641M/F -16C 1.6 2.4 1.8 -28~+300 (M/F) Heat-conducting oil, water, steam, gas, oil, nitric acid corrosive medium, acetic acid corrosive media
QQ641M/F -25C 2.5 4.0 2.8 -28~+350 (PPN)

The materials of main parts

No. part name material
1  body ductile iron, carbon steel, cast stainless steel
2  sealing ring (M/F) high strength waer-resistant carbon graphite≤300℃ (PPN) PPL, temperature≤350℃
3 ball stainless steel
4 packing PTFE
5 packing gland QT450-10 ductile cast iron
6 stem carbon steel, Cr stainless steel
7 handle carbon steel
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