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Motor + air actuated valves

Motor + Air Actuated Valves

Motor and air actuated valves for precise open/close or modulating control of liquids, gases, and air. Available in 2-way and 3-way configurations, with options in brass, stainless steel, and UPVC. Models include failsafe return, WRAS-approved, and timer-controlled valves, along with 4–20 mA and 0–10 V modulating units for proportional automation. Each valve assembly is precision-built using ISO 9001 / 14001 certified processes and fitted with reliable electric or pneumatic actuators for long-term performance. Designed for industrial and process control applications, including water treatment, HVAC, food and beverage, and general automation systems. All ranges are stocked in the UK for rapid dispatch with free next-day delivery and full technical support from Connexion Developments Ltd.

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Compact 2-way motor and air actuated valves for on/off control of liquids, gases, and air. Available in brass, stainless steel, and UPVC, with options for electric or pneumatic actuators. Ideal for process automation, water systems, and general industrial use. All valves are ISO 9001 / 14001 certified and supplied ready to install with free next-day UK delivery.

2 Way Actuated Valves

3-way motorised and pneumatically actuated valves for diverting, mixing, or distributing flow in automated process systems. Available in T-port and L-port configurations, with brass, stainless steel, or UPVC bodies and ISO 5211 direct-mount actuation.

Designed for industrial, chemical, and HVAC control applications where flexible direction management is essential. Each unit is built under ISO 9001 / 14001 standards for consistent torque and sealing integrity.
Supplied pre-assembled with electric or air actuators, fully tested, and dispatched from UK stock with free next-day delivery.

3 Way Actuated Valves

WRAS-approved motorised and air actuated ball valves for potable-water and drinking-water systems requiring full compliance with UK Water Regulations. Constructed from lead-free brass or 316 stainless steel, these one-touch automated valves provide safe, corrosion-resistant control for water treatment, utility, and process-supply applications.

Each valve assembly is WRAS certified, fully traceable, and built under ISO 9001 / 14001 quality systems.
Available in 2-way and 3-way configurations, with electric or pneumatic actuators, and stocked in the UK for free next-day delivery from Connexion Developments Ltd.

WRAS Approved Ball Valves

Failsafe actuated ball valves designed to automatically close or open on power or air-supply failure, ensuring safe system shutdown in critical applications. Available with spring-return pneumatic or electrically powered failsafe actuators, in brass or stainless-steel valve bodies.

Perfect for safety, chemical, and process-control environments where reliability and compliance are essential. Each assembly is ISO 9001 / 14001 certified and fully tested before dispatch.
Supplied complete, pre-wired or pre-piped, and available from UK stock with free next-day delivery and full technical support from Connexion Developments Ltd.

Failsafe Return Ball Valves

Precision modulating control valves for proportional regulation of liquids, gases, and air using industry-standard 4–20 mA, 0–10 V, or 0–5 V input signals. Available with electric or pneumatic actuators, these valves provide accurate, repeatable positioning for process, HVAC, dosing, and automation systems.

Constructed in brass, stainless steel, or UPVC with ISO 5211 mounting and feedback-ready options. Each assembly is ISO 9001 / 14001 certified, ensuring consistent performance and long service life.
All models are stocked in the UK, supplied fully tested and configured, with free next-day delivery and technical support from Connexion Developments Ltd.

Modulating control 4-20mA 0-10v 0-5v

Industrial-grade air actuated valves for precise on/off or modulating control in compressed-air, fluid, and process-control systems. Choose from pneumatic ball valves, butterfly valves, or angle-seat valves, available in brass, stainless steel, and cast iron body materials.

Engineered for long service life, consistent torque, and leak-free operation under demanding conditions. Each valve assembly is ISO 9001 / 14001 certified and configured for either double-acting or spring-return actuation.
Ideal for automation, chemical processing, and high-cycle systems, supplied from UK stock with free next-day delivery.

Air Actuated Ball, Butterfly + Angle Seat Valves

UPVC motorised ball valves designed for automatic flow control in water-treatment, irrigation, and chemical dosing systems. Each assembly features a robust electric actuator for open/close, failsafe, or modulating operation (0–10V or 4–20mA control).

Manufactured from industrial UPVC with EPDM or FKM seals, these corrosion-resistant valves provide excellent performance in aggressive or salt-water environments.
Produced under ISO 9001 / 14001 certified processes and stocked in the UK for free next-day delivery.

UPVC Actuated Ball Valves

Fully programmable motorised ball valves with digital timer control, enabling precise automated opening and closing between 1 second and 99 hours. Perfect for timed irrigation, fluid dosing, and water-saving control systems.

Constructed from WRAS-approved stainless steel with EPDM seals and a robust electric actuator, these valves provide reliable performance across a wide range of industrial, agricultural, and process-control applications.
Each unit is ISO 9001 / 14001 certified, available in BSP threaded sizes ¼" to 1", and supplied from UK stock with free next-day delivery.

Timer Controlled Ball Valves

Electric and pneumatic quarter turn ISO5211 valve actuators.

Electric + Pneumatic Valve Actuators

Filters

Price

Valve / Product Type

Air Actuated Valve0

air actuated valves that utilise a compressed air supply to operate.

Angle Seat Valve0

Angle seat piston valves, air actuated globe valves.

Ball Valve0

Motor and air actuated quarter turn 2+3 way ball valves

Butterfly Valve0

Butterfly valves are thin wafer pattern valves that fit between flanges.

Condensate drain0

Automated + time control drain valves

Motor Actuated 0

Pressure Sustaining0

Pressure sustaining / back pressure valve, maintains a minimum preset upstream (Inlet) pressure, valve will close if pressure drops to set pressure and reopens when inlet pressure increases again.

Proportional Modulating0

Flow regulating valves with manual or electric modulating 4-20mA control.

Solenoid Valve0

Valves controlled by electrical signal via a solenoid or electro magnet.

Timed control0

Time control valves can be set to activate according to preset intervals when power is applied.

Port Size

1/8 thread0

valves with 1/8 inch threaded ports

1/4 thread0

valves with 1/4 inch threaded ports

3/8 thread0

valves with 3/8 inch threaded ports

3/8 Flange DN100

1/2 thread0

valves with 1/2 inch threaded ports

1/2 inch Flange DN150

3/4 thread0

valves with 3/4 inch threaded ports

3/4 Flange DN200

20mm0

1 thread0

valves with 1 inch threaded ports

1 inch Flange DN250

25mm0

11/4 thread0

valves with 11/4 inch threaded ports

11/4 inch Flange DN320

32mm0

11/2 thread0

valves with 11/2 inch threaded ports

11/2 inch Flange DN400

40mm0

2 thread0

valves with 2 inch threaded ports

2 inch Flange DN500

50mm0

63mm0

21/2 thread0

valves with 21/2 inch threaded ports

21/2 inch Flange DN65 0

3 thread0

valves with 3 inch threaded ports

3 inch Flange DN80 0

4 Inch0

4 inch Flange DN100 0

5 inch Flange DN125 0

6 inch Flange DN150 0

8 inch Flange DN200 0

10 inch Flange DN2500

12 inch Flange DN300 0

14 inch Flange DN350 0

16 inch Flange DN400 0

18 inch Flange DN450 0

20 inch Flange DN500 0

Media

Air0

Fluid (Non Aggressive)0

Fluid (Slight Acid/Alkali)0

Fluid (Stong Acid/Alkali)0

Fluid Thick 51>500cSt0

Gases (Non Aggressive)0

Gases (Slight Acid/Alakli)0

Gases (Strong Acid/Alkali)0

Oils + Fuels 50cSt Max0

Steam0

Vacuum (Low)0

Vacuum (Medium)0

Water0

Water (RO/Pure/Demin)0

Body Material

Aluminium0

Brass0

Cast Iron0

Ductile Iron0

PVC0

Steel0

Stainless Steel0

UPVC0

Function

2/2 Normally Closed0

2 ports (inlet/outlet) with 2 positions (Open/Closed) - valve stays closed (Failsafe) requires power to open

2/2 Normally Open0

2 ports (inlet/outlet) with 2 positions (Open/Closed) - valve stays open (Failsafe) requires power to close

2/2 Double Acting0

2 ports (inlet/outlet) with 2 positions (Open/Closed) - power or air one side to move - power or air opposite side to return.

3/2 Normally Closed0

3 ports with 2 positions. Power off inlet closed, outlet open to exhaust - power on inlet open to outlet with exhaust closed.

3/2 Normally Open0

3 ports 2 positions. Inlet open to outlet with exhaust closed - power on inlet closed with outlet open to exhaust.

3/2 Universal0

3 ports, 2 positions flow can be in any direction. Can be piped as 3/2 normally closed flow into inlet, 3/2 normally open flow into exhaust, 3/2 diverting flow into outlet.

3 way T Port0

3 way L Port0

Power Open/Power Close0

Valve requires power to open and power to close, no power valves stays in position.

Proportional / Modulating0

Valve opens proportionally according to signal input, either 4-20mA, 0-10v or 0-5 volt. Example 4mA valve closed, 8mA 25% open, 12mA 50% open, 18mA 75% open and 20mA fully open.

Pressure

0.02 Bar (20 mBar)0

0.02 Bar = 20 millibars = 0.29psi = 2 Kpa

0.1 Bar (100 mBar)0

0.1 Bar = 100 millibars = 1.47 psi = 1kPa

0.2 Bar (200 mBar)0

0.2 Bar = 200 millibars = 2.94 psi = 20kPa

0.3 Bar (300 mBar)0

0.3 Bar = 300 millibars = 4.41 psi = 30 kPa

0.4 Bar (400 mBar)0

0.4 Bar = 400 millibars = 4.41 psi = 40 kPa

0.5 Bar (500 mBar)0

0.5 Bar = 500 millibars = 7.36 psi = 50 kPa

0.6 Bar (600 mbar)0

0.6 Bar = 600 millibars = 8.83 psi = 60 kPa

0.7 Bar (700 mBar)0

0.7 Bar = 700 millibars = 10.3 psi = 70 kPa

0.8 Bar (800 mBar)0

0.8 Bar = 800 millibars = 11.77 psi = 80 kPa

1 Bar0

1 Bar = 1000 millibars = 14.71 psi = 100 kPa = 0.1 MPa

1.2 Bar0

1.2 Bar = 1200 millibars = 17.65 psi = 1200 kPa = 0.12 MPa

1.3 Bar0

1.3 Bar = 1300 millibars = 19.12 psi = 1300 kPa = 0.13 MPa

1.4 Bar0

1.4 Bar = 1400 millibars = 20.59 psi = 1400 kPa = 0.14 MPa

1.5 Bar0

1.5 Bar = 1500 millibars = 22.07 psi = 1500 kPa = 0.15 MPa

1.6 Bar0

1.6 Bar = 1600 millibars = 23.54 psi = 1600 kPa = 0.16 MPa

2 Bar0

2 Bar = 2000 millibars = 29.42 psi = 2000 kPa = 0.2 MPa

2.5 Bar0

2.5 Bar = 2500 millibars = 36.78 psi = 2500 kPa = 0.25 MPa

3 Bar0

3 Bar = 3000 millibars = 44.13 psi = 3000 kPa = 0.3 MPa

3.5 Bar0

3.5 Bar = 3500 millibars = 51.49 psi = 3500 kPa = 0.35 MPa

4 Bar0

4 Bar = 4000 millibars = 58.84 psi = 4000 kPa = 0.4 MPa

4.5 Bar0

4.5 Bar = 4500 millibars = 66.20 psi = 4500 kPa = 0.45 MPa

5 Bar0

5 Bar = 5000 millibars = 73.55 psi = 5000 kPa = 0.5 MPa

5.5 Bar0

5.5 Bar = 5500 millibars = 80.91 psi = 5500 kPa = 0.55 MPa

6 Bar0

6 Bar = 6000 millibars = 88.26 psi = 6000 kPa = 0.6 MPa

6.5 Bar0

6.5 Bar = 6500 millibars = 95.62 psi = 6500 kPa = 0.65 MPa

7 Bar0

7 Bar = 7000 millibars = 102.97 psi = 7000 kPa = 0.7 MPa

7.5 Bar0

7.5 Bar = 7500 millibars = 110.33 psi = 7500 kPa = 0.75 MPa

8 Bar0

8 Bar = 8000 millibars = 117.68 psi = 8000 kPa = 0.8 MPa

8.5 Bar0

8.5 Bar = 8500 millibars = 125.04 psi = 8500 kPa = 0.85 MPa

9 Bar0

9 Bar = 9000 millibars = 132.39 psi = 9000 kPa = 0.9 MPa

10 Bar0

10 Bar = 147.1 psi = 1 MPa

12 Bar0

12 Bar = 176.52 psi = 1.2 MPa

13 Bar0

13 Bar = 191.23 psi = 1.3 MPa

14 Bar0

14 Bar = 205.94 psi = 1.4 MPa

15 Bar0

15 Bar = 220.65 psi = 1.5 MPa

16 Bar0

16 Bar = 235.36 psi = 1.6 MPa

17 Bar0

17 Bar = 250.07 psi = 1.7 MPa

18 Bar0

18 Bar = 264.78 psi = 1.8 MPa

20 Bar0

20 Bar = 294.2 psi = 2 MPa

25 Bar0

25 Bar = 367.8 psi = 2.5 MPa

30 Bar0

30 Bar = 441.3 psi = 3 MPa

35 Bar0

35 Bar = 514.9 psi = 3.5 MPa

40 Bar0

40 Bar = 588.4 psi = 4 MPa

50 Bar0

50 Bar = 735.5 psi = 5 MPa

60 Bar0

60 Bar = 882.6 psi = 6 MPa

64 Bar0

64 Bar = 941.4 psi = 6.4 MPa

Seals

EPDM0

EPDM (Ethylene Propylene Diene Monomer) - known as Ethylene Propylene terpolymer, Buna-AP, Dutral, Polysar-EDM, Royalene, Vistalon, Keltan, Epcar, Nordel or Epsyn). Good for hot and drinking water, Steam, Freon refrigerant gas and Air -40°C to +120°C (+150°C steam) Poor resistance to oils + fuels

FKM (Viton)0

FKM Fluoro elastomer (Fluorocarbon) Viton® Dupont registered, known as Tecnoflon, Fluorel, Dai-El. Good for hot water, acid, alkali, oils, hydrocarbons and salt solutions, many aggressive chemicals, diluted acids, weak alkali's, mineral oils, aliphatic and aromatic hydrocarbons, chlorinated hydrocarbons, sunlight and ozone. -26°C to +205°C. Poor resistance to Ketone's and Acetone.

FFKM (Kalrez)0

FF-KM Perfluoroelastomer - known as Kalrez, Chemraz or Perlast. Good most Solvents, Chemicals + excellent resistance to almost every thing, far surpassing FKM. -40°C to +250°C.

NBR0

NBR (Nitrile Buna Rubber) known as Nitrile Butadine, Buna-N, Hycar, Chemigum, Butakon, Breaon, Butacril, Paracil, Nipol, Perbunan, Krynac or Europrene-N. Good for Aliphatic Hydrocarbons, Petroleum, Fuels, Mineral Oil, Vegetable and Hydraulic Oil, Alcohol and many Acids. -35°C to +100°C. Poor for Ozone, Acetone, Methyl ethyl Ketone, Chlorinated Hydrocarbons, Ethers and Esters.

PTFE (Teflon)0

PTFE (Polytetrafluoroethylene) also known as Teflon® Dupont registered. Excellent resistance to almost every fluid or gas. -200°C to +230°C

Voltage

12vDC0

12 volts Direct Current

12vAC0

12 volts 50/60Hz Alternating Current

24vDC0

24 volts Direct Current

24vAC0

24 volts 50/60Hz Alternating Current

36vAC0

36 volts 50/60Hz alternating current

48vAC0

48 volts 50/60Hz alternating current

48vDC0

48 volts Direct Current

110vAC0

110 volts 50/60Hz Alternating Current

110vDC0

110 volts Direct Current

125vDC0

125 volts Direct Current

230VAC0

230 volts 50/60Hz Alternating Current

200vDC0

200 volts Direct Current

380vAC0

380 volts 50/60Hz Alternating Current

Approval: ATEX,WRAS,IP etc

ATEX Zone II GD0

hazardous area classification indicating a potentially explosive atmosphere with gases and dust present, requiring specific equipment for safe operation.

ATEX ExnA0

certifies equipment for use in potentially explosive atmospheres, indicating it is designed to prevent ignition sources, minimizing risk.

ATEX Exm0

ATEX Protection by encapsulation ll 2 G Ex mb ll T4 Gb and ll 2 D Ex tb IIIC T130°C Db IP65

IP400

Protected against solid foreign objects of 1mm diameter and more and no protection against water ingress.

IP540

Dust protected and protected against splashing water

IP650

Dust tight and protected against water jets

IP660

Dust protected and protected against powerful water jets.

IP670

Dust protected and protected against immersion in water

IP680

Dust protected and protected against the effects of continuous immersion in water.

EN12021 Breathing Air0

EN12021 approval certifies compressed air quality for breathing apparatus, ensuring it meets safety standards for human respiratory use.

WRAS0

WRAS approval ensures water fittings meet UK water regulations, safeguarding public health by preventing contamination, waste, and misuse of water supplies.

Orifice

1.6mm0

Valve orifice or sealing face with diameter 1.6mm

2.0mm0

Valve orifice or sealing face with diameter 2mm

2.4mm0

Valve orifice or sealing face with diameter 2.4mm

3.0mm0

Valve orifice or sealing face with diameter 3mm

6.0mm0

Valve orifice or sealing face with diameter 6mm

8.0mm0

Valve orifice or sealing face with diameter 8mm

10mm0

Valve orifice or sealing face with diameter 10mm

11mm0

Valve orifice or sealing face with diameter 11mm

12mm0

Valve orifice or sealing face with diameter 12mm

13mm0

Valve orifice or sealing face with diameter 13mm

14mm0

Valve orifice or sealing face with diameter 14mm

15mm0

Valve orifice or sealing face with diameter 15mm

17mm0

Valve orifice or sealing face with diameter 17mm

18mm0

Valve orifice or sealing face with diameter 18mm

20mm0

Valve orifice or sealing face with diameter 20mm

24mm0

Valve orifice or sealing face with diameter 24mm

25mm0

Valve orifice or sealing face with diameter 25mm

30mm0

Valve orifice or sealing face with diameter 30mm

32mm0

Valve orifice or sealing face with diameter 32mm

35mm0

Valve orifice or sealing face with diameter 35mm

38mm0

Valve orifice or sealing face with diameter 38mm

40mm0

Valve orifice or sealing face with diameter 40mm

45mm0

Valve orifice or sealing face with diameter 45mm

50mm0

Valve orifice or sealing face with diameter 50mm

59mm0

65mm0

Valve orifice or sealing face with diameter 65mm

76mm0

80mm0

Valve orifice or sealing face with diameter 80mm

95mm0

125mm0

Valve orifice or sealing face with diameter 125mm

150mm0

Valve orifice or sealing face with diameter 150mm

200mm0

Valve orifice or sealing face with diameter 200mm

250mm0

Valve orifice or sealing face with diameter 250mm

300mm0

Valve orifice or sealing face with diameter 300mm

350mm0

Valve orifice or sealing face with diameter 350mm

400mm0

Valve orifice or sealing face with diameter 400mm

450mm0

Valve orifice or sealing face with diameter 450mm

500mm0

Valve orifice or sealing face with diameter 500mm

Operation

Direct Acting0

Directly controls flow without external pressure assistance operates from vacuum upwards.

Pressure Assisted0

Operate via pilot pressure control and require a minimum pressure difference between inlet and outlet from 0.5 Bar.

Options required

Anti Water Hammer0

Prevents or reduces water hammer caused by sudden changes in fast moving fluid flow.

Bi-Directional Flow0

Can control flow in both directions

Degreased0

Oil and grease removed typically for oxygen or paint spray use.

Flow Control0

Flow regulation to control the amount of flow.

Manifold0

A group of multiple valves together on one manifold, simple layout streamline control and space saving.

Manual Control0

Valves that require manual input to operate such as lever, button or switch

Manual Override0

A facility to manually move the valve into the fully actuated position via a button, lever or key.

Mounting Bracket0

Valve has the facility to be supplied with a bracket for mounting and securing.

Mounting Holes0

Supplied with additional threaded holes typically in the base, typically for securing to a baseplate.

Outlet - right angle0

The outlet port is at right angles to inlet port, ideal for space efficiency.

Position Feedback Closed0

The valve is equipped with an additional volt free electrical switch that is triggered when the valve is mechanically closed.

Position Feedback Open+Closed0

The valve is equipped with two additional volt free electrical switches that are triggered when the valve is mechanically closed or open position.

Position proximity switch - Open0

The valve is equipped with an additional volt free electrical switch that is triggered as the valve reaches the open position.

Position indication Visual 0

The valve is equipped with clear cover or dome under which an arrow or flag can be seen to confirm either the open and or closed position of the valve.

Y Pattern0

A Y-pattern valve is a valve with a Y-shaped body design, typically used for high-pressure applications to reduce pressure drop and turbulence, often found in steam systems.

Spares (Coils, Connectors, Seals)

Actuator Head Air + Motor0

Air Actuator0

Nuts + bolts + plates0

Only Show Items In Stock

Hide spare parts

Showing 1 - 20 of 117 total products

1 WRAS Stainless ball valve motorised Open/Close + Failsafe £125.77 £94.33 inc VAT

2101 IN STOCK

3/4 WRAS Stainless ball valve motorised Open/Close Failsafe £109.45 £82.09 inc VAT

3041 IN STOCK

1/2 WRAS Stainless ball valve motor Open/Close or Failsafe £101.11 £75.84 inc VAT

2172 IN STOCK

2 WRAS Stainless ball valve motorised Open/Close + Failsafe £405.22 £263.39 inc VAT

117 IN STOCK

1 Stainless ball valve motor actuated Open/Close + Failsafe £138.35 £103.76 inc VAT

73 IN STOCK

11/2 WRAS Stainless ball valve motor Open/Close or Failsafe £348.48 £226.51 inc VAT

227 IN STOCK

1/4-1/2 Stainless ball valve 3 way motor Open/Close Failsafe £124.61 inc VAT

161 IN STOCK

1/2 to 4 BSP Stainless ball valve c/w pneumatic actuator £108.24 £70.36 inc VAT

231 IN STOCK

1/4 WRAS Stainless ball valve motor Open/Close or Failsafe £101.11 £75.82 inc VAT

128 IN STOCK

11/4 WRAS Stainless ball valve motor Open/Close + Failsafe £293.81 £190.98 inc VAT

226 IN STOCK

10 Second Motor actuator Open/Close + Failsafe IP67 ISO5211 £202.93 £121.76 inc VAT

291 IN STOCK

1 Angle seat piston valve stainless 16 Bar +200C N/Closed £189.50 £125.08 inc VAT

192 IN STOCK

1/2 WRAS Stainless ball valve motor timer 1 Sec -100 Hrs £121.62 £80.27 inc VAT

86 IN STOCK

11/2 DN40 UPVC ball valve motor actuated Open/Close Failsafe £330.34 £247.75 inc VAT

51 IN STOCK

1/2 to 2 BSP WRAS brass ball valve c/w pneumatic actuator £106.21 £108.24 inc VAT

286 IN STOCK

3/4 PVC ball valve motor actuated Open/Close or Failsafe £80.00 inc VAT

74 IN STOCK

2 DN50 UPVC ball valve motor actuated Open/Close + Failsafe £365.52 £274.14 inc VAT

58 IN STOCK

3/4 DN20 UPVC ball valve Motor actuated Open/Close Failsafe £245.82 £184.37 inc VAT

58 IN STOCK

3/4 Brass ball valve 3 way motorised Open/Close Failsafe £120.46 £90.35 inc VAT

144 IN STOCK

1 Brass ball valve 3 way motor actuated Open/Close Failsafe £145.02 £108.77 inc VAT

235 IN STOCK

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