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Ball Valves

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Ball Valves

Ball valves are quarter-turn valves designed for fast and reliable shut-off in fluid systems. They use a spherical disc (the “ball”) with a central hole (bore) that controls flow. When the ball’s bore is aligned with the pipeline, the valve is fully open, allowing unobstructed flow. A simple 90° turn of the handle or actuator rotates the ball, positioning the bore perpendicular to the line and completely stopping flow.

This design provides excellent sealing, minimal pressure drop, and easy operation, making ball valves one of the most widely used valves in industries such as oil & gas, water supply, chemical processing, and power generation. They are especially valued where tight shut-off, frequent operation, and low maintenance are required.

Exceed Ball Valves are built with precision-engineered balls and seats for bubble-tight sealing, smooth operation, and long service life. With robust construction and options for manual, pneumatic, or electric actuation, Exceed ensures reliable performance across demanding applications.

 

Standards:

Manufacturing Std.: BS EN ISO 17292 / ASME B16.34

Testing & Inspection Std.: API 598

Face to Face: ASME B16.10

End Connections: ASME B16.5 RF

 

Engineering Options:

  • Pneumatic / Electric Actuation: Pneumatic or electric actuators available for reote and automated valve operation.
  • Extended Spindle: Extended spindle arrangement for applications requiring additional clearance or remote operation.

The operation of a ball valve is based on a quarter-turn mechanism:

  1. Open Position
    When the handle or actuator rotates the ball so that its bore is aligned with the pipeline, fluid flows freely through the valve. The straight-through flow path results in very low pressure drop, preserving system efficiency.

  2. Closed Position
    Rotating the ball 90° moves the bore perpendicular to the pipeline, blocking flow completely. The solid surface of the ball presses against the valve seats, creating a tight seal even under high pressure.

  3. Intermediate Position (Throttling)
    Although ball valves are primarily designed for shut-off, they can be partially opened to regulate flow in some cases. However, extended throttling service may reduce seat life, so they are best used for on/off applications.

Because of this simple design, ball valves are easy to operate, quick to actuate, and reliable in both manual and automated systems.

Ball valves are commonly used:

  • In pipelines requiring tight shut-off – to ensure zero leakage in oil, gas, and chemical transfer lines.

  • At system isolation points – for quick and reliable shut-off during maintenance or emergencies.

  • In utility services – such as water distribution, compressed air, and steam lines, where durability and ease of use are essential.

  • With automation systems – when paired with pneumatic or electric actuators for remote or frequent operation.

  • Tight Sealing
    Ball valves provide bubble-tight shut-off, preventing leakage even in high-pressure systems.
    Exceed uses precision-machined balls and resilient seats to achieve superior sealing performance.

  • Low Pressure Drop
    The straight-through flow path results in minimal resistance and energy loss.
    Exceed designs its valves for maximum flow efficiency and reduced turbulence.

  • Quick Operation
    Only a 90° turn is needed to fully open or close the valve, making it ideal for rapid shut-off.
    Exceed offers smooth-operating stems and actuation options for easy handling and automation.

  • Durable and Versatile
    Ball valves are suitable for a wide range of fluids, pressures, and temperatures.
    Exceed selects high-quality materials and robust construction to ensure long service life in demanding conditions.

  • Automation Ready
    Ball valves are easily adapted to automated control systems.
    Exceed provides ball valves with optional pneumatic or electric actuators for reliable remote operation.

No Part Name Qty Materials
1 Body 1 ASTM A216 Gr. WCB

ASTM A351 Gr. CF8

ASTM A351 Gr. CF8M
2 Ball 1 ASTM A216 Gr. WCB

ASTM A351 Gr. CF8

ASTM A351 Gr. CF8M
3 Stem 1 ASTM A276 Type 202

ASTM A276 Type 304

ASTM A276 Type 316
4 Gland Bush 1 ASTM A276 Type 202

ASTM A276 Type 304

ASTM A276 Type 316
5 Seat Ring 1 PTFE / CFT
6  Stem Seal 2 PTFE / CFT
7 Body Seal 2 PTFE / CFT
8 Gland Nut 1 ASTM A307 / ASTM A276 Type 202
9 Lock Nut 1 ASTM A307 / ASTM A276 Type 202
10 Stopper Pin 1 ASTM A216 Gr. WCB

ASTM A351 Gr. CF8

ASTM A 351 Gr. CF8M
11 Stud - Nuts Req. ASTM A276 Type 202 - ASTM A276 Type 202
12 Handle 1 ASTM A36
Service Rating Test Pressure
Material Class Working Pressure @ 38°C Max Temp. Shell Test High Pressure Closure Test (Water) Low Pressure Closure Test (Air)
WCB

150

300

19.6 bar

51.1 bar

100°C

29.4 bar

76.7 bar

21.6 bar

56.2 bar

 7 bar
CF8/CF8M

150

300

19 bar

49.6 bar

100°C

28.5 bar

74.4 bar

20.9 bar

54.6 bar

 7 bar

Important Notes:

1) Temprature shown is the maximum service temprature of the valve. The allowable working pressure decreases as temprature increases. Always refer to the ASME B16.34 pressure-temprature ratings for the exact value at the required temprature.

2) Hydrostatic test pressures are based on API 598 requirements:

  • Body (shell) test = 1.5 x rated working pressure
  • Seat (closure) test = 1.1 x rated working pressure
Size DN F to F ØD ØRF PCD ØM N T
15 108.00 89.00 35.00 60.40 16.00 4 11.00
20 118.00 98.50 43.00 70.00 16.00 4 11.00
25 127.00 108.00 51.00 79.20 16.00 4 11.00
40 165.00 127.00 73.00 98.50 16.00 4 14.20
50 178.00 152.00 92.00 120.60 19.00 4 15.70
65 191.00 178.00 105.00 139.70 19.00 4 17.50
80 203.00 190.50 127.00 152.40 19.00 4 19.00
100 229.00 229.00 157.00 190.50 19.00 8 24.00
125 254.00 254.00 186.00 215.90 22.00 8 24.00
150 267.00 279.00 216.00 241.30 22.00 8 25.00
200 292.00 343.00 270.00 298.40 22.00 8 28.50
250 330.00 406.00 324.00 362.00 25.00 12 30.00

(Dimensions above 250mm available on request)

All dimensions are in mm

Size DN F to F ØD ØRF PCD ØM N T
15 140.00 95.00 35.00 66.50 16.00 4 14.30
20 152.00 117.00 43.00 82.50 19.00 4 15.70
25 165.00 124.00 51.00 89.00 19.00 4 17.50
40 190.50 155.40 73.00 114.30 22.00 4 20.50
50 216.00 165.00 92.00 127.00 22.00 8 22.00
65 241.00 190.50 105.00 149.30 22.00 8 25.00
80 282.50 209.50 127.00 168.10 22.00 8 28.5
100 305.00 254.00 157.00 200.10 22.00 8 32.00
125 381.00 279.40 186.00 234.90 22.00 8 35.00
150 403.00 317.50 216.00 269.70 22.00 12 36.5
200 419.00 381.00 270.00 330.20 25.00 12 41.00
250 457.00 444.50 324.00 387.30 29.00 16 48.00

(Dimensions above 250mm available on request)

All dimensions are in mm

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