Ball valves and actuators
Ball valves with pneumatic actuator
This category contains ball valves with a pneumatic rotary actuator in stainless steel, brass and PVC-U, either double-acting or spring-return in spring-to-close or spring-to-open configuration. The range covers threaded valves G 1/4 to G 4 and Rp 1/2 to Rp 2, 3-piece ball valves with butt-weld ends from 13.5 to 114.3 mm and flanged ball valves DN 15 to DN 200 in PN 16 and PN 40. 3-way ball valves with L-port or T-port are available single-acting and double-acting. Actuators without valve and the Köly PVC-U range are listed in the neighbouring categories.
Quick filters
Choose the actuator function first, then connection and nominal size.
double-actingCompressed air opens and closes the valve, no spring pack in the actuator.no spring return
Spring return (NC)The spring closes the valve as soon as the air supply is lost.spring-to-close
Spring return (NO)The spring opens the valve as soon as the air supply is lost.spring-to-open
single-acting3-way ball valves with single-acting actuator.L-port or T-port
ATEXVersions with ATEX certificate. Marking and zone are stated on each item.Certificate
FlangeFlanged, compact flanged and 3-piece flanged ball valves.PN 16 or PN 40
G 1/4 to G 1Threaded ball valves in small sizes, stainless steel or brass.Threaded connection
DN 125 to DN 200Large nominal sizes as flanged ball valves.Flange
- 843 items
- 2 manufacturers
- Net prices plus VAT
Buying guide
How to choose Ball valves with pneumatic actuator
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Criterion | Options | What to check |
|---|---|---|
| Actuator function | Double-acting, spring return spring-to-close (NC), spring return spring-to-open (NO), single-acting | Define which position the valve has to take if the air supply fails. |
| Valve type | Flanged ball valve, compact flanged ball valve, 3-piece flanged ball valve, 3-piece ball valve, 3-way ball valve, threaded ball valve, PVC-U ball valve, high-pressure ball valve | On 3-piece designs the centre section can be removed without detaching the end connectors from the pipeline. |
| Connection | Flange DN 15 to DN 200, G 1/4 to G 4, Rp 1/2 to Rp 2, butt-weld ends 13.5 to 114.3 mm, solvent socket or female thread DN 15 to DN 100 | For flanges the pressure rating PN 16 or PN 40 matters as well as the nominal size, for weld ends the pipe outside diameter. |
| Body material | Stainless steel, brass, nickel-plated brass, PVC-U, stainless steel 1.4571 | The body material has to suit the medium. Check chemical resistance against the data sheet. |
| Seal | FKM, EPDM, PTFE | The seal also determines media and temperature resistance. |
| Standard and certificate | DIN 3202, DIN EN 331, DIN EN 12982, ATEX | Each of these can be selected in the filter bar. |
| Media temperature | -20 to +160 °C, -30 to +100 °C, -20 to +120 °C, -20 to +150 °C | The permitted range applies per item and depends on body and seal. |