1/8 1/4 solenoid valve 3/2 N/Open 0-8 Bar 1.4mm


£49.00 incl. VAT
£30.09 ex. VAT

Misc Option

Brand: Shako Co Ltd

Model: PU320N

Stock: 89 in stock

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1/8 1/4 inch 3 way solenoid valve Shako PU300 (PU320N)
Function: 3/2 way normally opend
Operation: direct acting
Port: 1/8 or 1/4 BSP, option NPT thread (Top brass port 1/8)
Port option: Sub base mounting (requires mounting kit nuts, bolts + O ring)
Pressure: 0 to 8 Bar
Body: Anodised aluminium
Internals: stainless steel and Brass
Orifice: 1.4mm
Kv flow factor: 1.0 L/min based on water with 1 Bar pressure drop.
Seals: NBR standard, option FKM or EPDM
Media: compressed air, vacuum and inert gases compatible with materials of construction.
Coil: 4.5 Watt Nass Magnet system 8/22 CE IP65 Class F DIN43650B 100% duty rated.
Coil option: ATEX EExmIIT4 Temperature Class T4 T130°C Ex mb IIC T4 and Gb Ex mb tb IIIC T130°C Db for hazardous area 21 and 22.

The PU320 can be assembled into a manifold with single inlet multiple outlets for multiple pneumatic cylinder or actuator control systems and control panels.
If you would like your solenoid valve manifold system supplied assembled just tick and order the mounting kit option and send us a message to assemble when checking out and we will be happy to assemble your manifold system for you at no additional charge.
Note: 2 valves require 1 assembly kit, 3 valve 2 kits, 4 valves 3 kits, etc.

The PU30002-12vdc is a very popular solenoid control valve for the head light vacuum system for Lotus Elan Sprint 1971, 1972 and 1973 and Lotus Elan +2 and +2S 130/5 speed, piped up A to headlight and R to manifold vacuum.

Technical Specification

Brand: Shako Co Ltd

Model: PU320N

Width: 23.00 mm

Height: 83.00 mm

Depth: 33.00 mm

Weight: 0.16 kg

Valve / Product Type: Solenoid

Body Material: Aluminium

Voltage: 110vAC, 12vAC, 12vDC, 230VAC, 24vAC, 24vDC, 48vAC, 48vDC, 6vDC

Port Size: 1/4 Inch, 1/8 Inch

Function: 3/2 Normally Open

Operation: Direct Acting

Pressure Maximum: 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

Seals: EPDM, NBR, FKM (Viton)

Approvals: ATEX Zone II GD, ATEX Exm, IP65

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

Orifice: 1.4mm

Options required: Manifold, Mounting Holes, Outlet - 90 Degree right angle


★★★★★5.0 / 5 1 reviews



Hi, I have now received the valve I ordered (very impressed by the delivery speed) , but I think it will not work for me. I will order again (PU320, 3/2 12v, 1/4"BSP, normally closed) and return the one that I have. Apologies for the length of the email. Following a telephone conversation with one of your colleagues I ordered a PU300 3/2 12v, ¼” BSP normally open valve for my Lotus Elan +2. I think this may be incorrect and that I should have purchased a normally closed type. I think the confusion has been caused because there are two variations of the vacuum system (detailed description below), depending on the age of the vehicle. The changeover point was in 1968/69 depending on where the car was being sold to. I believe the Elan and the Elan +2 share the same components for headlamp operation. Lotus Elan +2 built 1967 - 1969 Lotus Elan +2S [also designated +2S 130 & +2S 130/5 ] built 1968 ? – 1974 All cars have a vacuum system that operates the pop up headlamps. The engine charges a reservoir built into the front of the chassis via a one way valve. A pull switch containing a valve arrangement operates the headlamp position. The headlamp position is changed by a pod (actuator) containing a rubber diaphragm and lever. The two variants (+2 or +2S) have a different arrangement for the headlamp vacuum system, the +2*S* has a *“failsafe system”* , in which the headlamps will pop up (spring assisted) if the vacuum system leaks or fails. The vacuum holds the headlamps in the closed position, I would assume that this requires a normally open valve. This system has a single headlamp actuator pod. *The earlier +2 (mine is one of these) uses vacuum to lift the headlamps against spring pressure. If the system fails/leaks the headlamps will close.* *The 2 position pull switch prevents vacuum flow in the off position and allows air to flow to the pod to lower the headlamp (spring assisted).* * The “on” position connects the vacuum reservoir to the headlamp pod, raising the headlamp. I think this should require a normally closed valve. *This system has 2 actuator pods, one under each headlamp. I have a further question regarding wiring. Can you confirm the wiring for 12v, -ve earth ? Is it just terminals 1 + 2 & does polarity matter ? regards Adrian

Reviewed on 16/10/2020