Key Features

  • Automatic condensate drain assembly
  • SVT11 repeat-cycle timer included
  • 0.5–10 sec ON / 0.5–45 min OFF
  • Direct acting from 0 Bar pressure
  • Up to 20 Bar with AC voltage
  • Up to 13 Bar with DC voltage
  • 1/4" BSP brass solenoid valve
  • Optional 1/4" NPT connection
  • Compact 1.2mm valve orifice
  • Low power 4.5 Watt solenoid coil
  • 100% continuous duty rated
  • IP65 protection with connector
  • Manual timer override / TEST function
  • LED power and valve indication
  • Alternative timing ranges available
  • Large UK stocks available
  • Free next working day UK delivery

Description

1/4" Automatic Condensate Drain Valve with Timer


The Shako PU220AR-021 automatic condensate drain valve combines a compact 2/2 way normally closed brass solenoid valve with an adjustable SVT11 electronic repeat-cycle timer for reliable automatic drainage of compressed air systems.

Supplied as a complete ready-to-install assembly, the timer automatically energises the valve for a preset ON period before switching OFF for the selected interval. This provides regular condensate discharge from compressors, receivers, filters and other compressed air equipment without requiring a PLC or external controller.

The compact direct-acting valve operates from zero pressure differential and is suitable for pressures up to 20 Bar with AC coils or 13 Bar with DC coils.

Valve Specification

Model: Shako PU220AR-021
Function: 2/2 way normally closed
Operation: Direct acting
Port size: 1/4" BSP
Optional thread: 1/4" NPT
Pressure range AC: 0 to 20 Bar
Pressure range DC: 0 to 13 Bar
Orifice: 1.2mm
Kv flow factor: 0.7 L/min based on water with 1 Bar pressure drop
Mounting: M4 × 0.8 mounting holes

Construction & Materials

Body: Brass
Internal components: Stainless steel
Standard seals: NBR
Optional seals:
FKM (Viton®)
EPDM
HNBR

Media

Compressed air
Water
Vacuum
Light oils
LPG
Diesel
Petrol
Propane
Inert gases
Nitrogen
Carbon dioxide
Argon
Oxygen
Kerosene
Fuel
Other compatible gases and fluids below 40 cSt
Important: Media compatibility depends upon the selected seal material and compatibility with all valve materials.

Coil & Electrical Specification

Coil power: 4.5 Watts
Insulation class: Class F
Duty cycle: 100% continuous duty
Electrical connection: DIN43650B
Protection: IP65 with connector fitted

Voltage Options

24V DC
48V DC
110V DC
24V AC
48V AC
110V AC
230V AC

SVT11 Repeat Cycle Timer

The supplied SVT11 solid-state electronic timer automatically switches the solenoid valve ON and OFF at adjustable intervals, providing automatic condensate drainage without an external controller.
Function: Adjustable ON/OFF repeat cycle
Mounting: DIN43650B / Form B
Supply voltage: 24–240V AC/DC
Optional supply: 12V and other voltages available
Indication: LED power and valve ON indication
Manual control: TEST / manual override
Standard Timing Range
ON time: 0.5–10 seconds
OFF time: 0.5–45 minutes
Both ON and OFF periods are independently adjustable.
Alternative SVT11 timing ranges are available for applications requiring different drain intervals.

Operating Sequence

When electrical power is applied, the SVT11 timer controls the solenoid valve automatically.
The valve opens for the selected ON period to discharge accumulated condensate and then closes for the selected OFF period.
This ON/OFF sequence repeats continuously while electrical power is supplied.

Typical Applications

Air compressors
Compressed air receivers
Refrigerated air dryers
Compressed air filters
Moisture separators
Aftercoolers
Air distribution systems
Automatic condensate drains
Industrial pneumatic equipment
OEM compressor systems

Benefits

✓ Automatic condensate removal
✓ Operates from zero pressure
✓ Suitable for high-pressure systems
✓ Adjustable drainage frequency
✓ No PLC or external controller required
✓ Compact ready-to-install assembly
✓ Low power consumption
✓ Reduces manual drain maintenance
✓ Simple timer adjustment
✓ Reliable continuous operation

Related Products & Categories




View Technical Specification

Technical Specification

Brand: Shako Co Ltd

Model: PU220021A+TEC11

Width: 43.00 mm

Height: 95.00 mm

Depth: 80.00 mm

Weight: 1.00 kg

Valve / Product Type: Condensate Drain, Solenoid Valve, Timed Control

Body Material: Brass

Voltage: 110vAC, 110vDC, 200vDC, 230VAC, 24vDC, 48vAC, 48vDC

Port Size: 1/4 thread

Function: 2/2 Failsafe Closed

Operation: Direct Acting from 0 Pressure

Pressure: 0.02 Bar (20 mBar), 0.1 Bar (100 mBar), 0.2 Bar (200 mBar), 0.3 Bar (300 mBar), 0.4 Bar (400 mBar), 0.5 Bar (500 mBar), 0.6 Bar (600 mbar), 0.7 Bar (700 mBar), 0.8 Bar (800 mBar), 1 Bar, 1.2 Bar, 1.3 Bar, 1.4 Bar, 1.5 Bar, 1.6 Bar, 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar, 9 Bar, 10 Bar, 12 Bar, 13 Bar, 14 Bar, 15 Bar, 16 Bar, 17 Bar, 18 Bar, 20 Bar

Seals: EPDM, HNBR, NBR, FKM (Viton)

Approvals:: IP65

Media: Air, Fluid (Non Aggressive), Gases (Non Aggressive), Oils + Fuels 50cSt Max, Water

Options required: Manual Override, Mounting Holes

Orifice: 1.2mm

Reviews

★★★★★5.0 / 5 1 reviews

★★★★★ Verified Purchase

GREAT

Reviewed on 27/03/2026 by Shaun D - NOTTINGHAM, United Kingdom

1/4 BSP Compressor drain timer 0.5-10Sec ON / 0.5-45 Min OFF

★★★★★ 5.0 / 5 (1 review)

£81.85 incl. VAT £68.21 ex. VAT

-37% Was £129.61 incl. VAT

Brand: Shako Co Ltd

Model: PU220021A+TEC11

Stock: 17 in stock

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