Pneumatic O-Type Ball Valve (ZSHO) with pneumatic actuator
Pneumatic O-Type Ball Valve - O-type control ball valve
Pneumatic O-Type Ball Valve - pneumatic actuated ball valve

Pneumatic O-Type Ball Valve

  • Low fluid resistance, PTFE seat sealing
  • DN15–DN300, -28°C to 300°C
  • GB/API/ANSI/DIN/JIS standards, ISO 5211

Category

Overview

ZSHO Pneumatic O-Type Ball Valve is primarily used to isolate or connect the medium in pipelines, and is also suitable for fluid regulation and control. Compared with other valve types, it offers the following advantages:

Valve Features

  • Low fluid resistance – the ball valve offers one of the lowest fluid resistances of all valve types; even reduced-bore ball valves exhibit very low resistance.
  • Thrust bearings reduce the frictional torque on the valve stem, ensuring smooth and flexible long-term operation.
  • Reliable seat sealing – seat rings made of soft-seating materials such as PTFE are inherently easy to seal, and sealing capability rises with fluid pressure.
  • Reliable stem sealing – as the stem rotates without linear movement, the stem packing seal is not easily damaged, and its sealing capability increases with rising fluid pressure.
  • Long service life – materials such as PTFE have excellent self-lubricating properties, minimizing friction loss against the ball.
  • Blow-out-proof stem – the bottom-entry stem with an integral shoulder prevents stem ejection; should fire damage the stem seal, metal-to-metal contact between the shoulder and the body maintains stem sealing.
  • Anti-static design – springs between the ball, stem and body dissipate static electricity generated during switching.

Actuator Features

  • Rack-and-pinion double-piston design delivers high output torque in a compact size.
  • Aluminium alloy cylinder – lightweight with a clean appearance.
  • Manual override can be mounted on either the top or the bottom.
  • Rack-type connection allows adjustment of the opening angle and rated flow.
  • Optional electrical position feedback and various accessories enable fully automated operation.
  • ISO 5211 standard mounting interface facilitates easy installation and replacement.
  • Adjustable end stops provide a ±4° adjustment range at 0° and 90° on standard products, ensuring synchronization accuracy with the valve.

Optional Accessories

  • On/off type: single solenoid valve, double solenoid valve, limit switch box.
  • Modulating type: electro-pneumatic positioner, pneumatic positioner, electro-pneumatic (I/P) converter.
  • Air supply treatment: air filter regulator, FRL (filter-regulator-lubricator) unit.
  • Manual override: HVSD handwheel mechanism.

Design & Manufacturing Standards

  • Design & manufacture: GB12237-89, API 608, API 6D, JPI 7S-48, BS5351, DIN3357
  • Flange dimensions: JB/T74~90, GB9112~9131, HGJ44~76, SH3406, ANSI B16.5, JIS B2212~2214, NF E29-211, DIN2543
  • Face-to-face dimensions: GB12221-89, ANSI B16.10, JIS B2002, NF E29-305, DIN3202
  • Inspection & testing: JB/T 9092, API 598

Performance Specifications

Main Component Materials & Operating Conditions
Item C P R
Body WCB ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
Ball 2Cr13 1Cr18Ni9Ti 1Cr18Ni12MoTi
Stem 2Cr13 1Cr18Ni9Ti 1Cr18Ni12MoTi
Seat Ring Reinforced PTFE / PPL
Packing PTFE / Flexible Graphite
Suitable Media Steam, water Nitric acid Acetic acid
Media Temperature -28°C ~ 300°C
Nominal Diameter DN15 – DN300
Actuator Model AW, DA/SR series, GTE series, TH series, etc.
Air Supply Pressure 0.4 – 0.7 MPa

Overall Dimensions

Actuator models optional: DA/SR, QGSY, SY-CH, GTD/GTE, AW/AWS, SY-YD series (for reference only; select according to actual requirements).

Rating: 1.6 MPa
DN (mm) L D D1 b Z-Ød
15 130 95 65 14 4-Ø14
20 130 105 75 14 4-Ø14
25 140 115 85 14 4-Ø14
32 165 135 100 16 4-Ø18
40 165 145 110 16 4-Ø18
50 203 160 125 16 4-Ø18
65 222 180 145 18 4-Ø18
80 241 195 160 20 8-Ø18
100 305 215 180 20 8-Ø18
125 356 245 210 22 8-Ø18
150 394 280 240 24 8-Ø23
200 457 335 295 28 12-Ø23
Rating: 2.5 MPa
DN (mm) L D D1 b Z-Ød
15 130 95 65 16 4-Ø14
20 130 105 75 16 4-Ø14
25 140 115 85 16 4-Ø14
32 165 135 100 18 4-Ø18
40 165 145 110 18 4-Ø18
50 203 160 125 20 4-Ø18
65 222 180 145 22 8-Ø18
80 241 195 160 22 8-Ø18
100 305 230 190 24 8-Ø23
125 356 270 220 28 8-Ø25
150 394 300 250 30 8-Ø25
200 457 360 310 34 12-Ø25
Rating: 4.0 MPa
DN (mm) L D D1 b Z-Ød
15 130 130 65 16 4-Ø14
20 150 150 75 16 4-Ø14
25 160 160 85 16 4-Ø14
32 180 180 100 18 4-Ø18
40 200 200 110 18 4-Ø18
50 230 230 125 20 4-Ø18
65 290 290 145 22 8-Ø18
80 310 310 160 22 8-Ø18
100 350 350 190 24 8-Ø23
125 400 270 220 28 8-Ø25
150 480 300 250 30 8-Ø25
200 600 375 320 38 12-Ø30

Related products