380V SOLENOID VALVE

*380V Solenoid Valve 4.0MPa* = High pressure electric valve – 380V coil, max 40 bar pressure. For compressor, water, steam, air, oil.

4.0MPa = 40 bar = 580 PSI. Very high pressure – Not normal 10 bar valve.

### *380V Solenoid Valve 4.0MPa Specs*
Spec Details
**Voltage** 380V AC – 3-phase coil, 50Hz
**Pressure** 4.0MPa max = 40 bar
**Working Pressure** 0.1 – 4.0MPa = 1 – 40 bar
**Media** Air, water, oil, steam, gas
**Port Size** 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″ – Most common 1″
**Type** Normally Closed (NC) – Closed without power, opens with 380V
**Type 2** Normally Open (NO) – Open without power
**Body** Brass or Stainless Steel 304 – For 40 bar must be SS304 or forged brass
**Seal** PTFE / Viton – For 40 bar + heat
**Temp** -10°C to 120°C (Viton) / 180°C (PTFE)
**Connection** BSP thread female
**Response** 0.05 sec open/close

### *380V vs 220V vs 24V Solenoid – Which?*
Coil Voltage Price Use Lagos Availability
**380V AC** 380V 3-phase ₦85k for 1″ Industrial panel – Direct from 3-phase contactor Less common, order 2 days
**220V AC** 220V single ₦70k for 1″ Most common in Nigeria – Plug to NEPA ✅ Everywhere
**24V DC** 24V DC ₦75k for 1″ PLC / automation, safe Common in automation shops
**12V DC** 12V DC ₦70k for 1″ Battery / solar Less common
*If you can use 220V, buy 220V – 380V coil is harder to find spare. 380V coil alone = ₦25k-₦35k.*

### *4.0MPa vs 1.0MPa vs 1.6MPa – Don’t Buy Wrong*
Pressure Rating Max Bar Price 1″ For What Happens If Wrong
**1.0MPa** 10 bar ₦45k Normal compressor 8 bar **Bursts at 20 bar – Dangerous**
**1.6MPa** 16 bar ₦55k High pressure compressor 15 bar Bursts at 25 bar
**4.0MPa** **40 bar** **₦85k** **High pressure 30-40 bar, PET, steam, hydraulic** **Safe for 40 bar**
*If your system is 30 bar, you MUST use 4.0MPa valve. 1.6MPa valve will explode.*

### *Brass vs Stainless Steel 304 – For 40 Bar*
**Brass 4.0MPa** **SS304 4.0MPa**
**Price 1″** ₦65k ₦85k
**Media** Air, water, oil – OK Air, water, oil, steam, chemical – Best
**Pressure** 40 bar OK if forged brass 40 bar OK
**Corrosion** Rusts in 2yrs with water No rust 10yrs
**For** Air only **Water / steam / compressor drain – Buy SS304**
*For water / steam, buy SS304. Brass corrodes.*

### *NC vs NO – Normally Closed vs Normally Open*
Type Without Power With 380V Power For
**NC – Normally Closed** Closed – No flow Opens – Flow 90% buy this – Compressor drain, water shutoff, safety
**NO – Normally Open** Open – Flow Closes – Stops flow Alarm, bypass
*Buy NC if you are not sure.*

### *Test Before Buying*
1. *Coil resistance*: 380V coil should be 800-1500 ohm. If 0 or infinite = coil burnt
2. *Click test*: Connect 380V briefly – Must click loud. No click = stuck
3. *Leak test*: Connect 10 bar air, close valve, soap water on outlet – No bubbles
4. *Nameplate*: Must write 4.0MPa / 40 bar. If writes 1.6MPa, it’s not 40 bar – Fake

### *Wiring 380V Solenoid*
– *Coil*: 2 wires – L1 + L2 from 380V contactor. No neutral needed for 380V AC coil
– *Power*: 15-25W only – Small current 0.05A
– *Protection*: Add 1A fuse in series – Coil burns if voltage spike
– *Timer*: For compressor auto drain, use timer relay 220V to control 380V contactor – Don’t connect timer directly to 380V coil

### *Key Tips*
1. *Install filter before valve*: 40 bar system – Dirt 0.5mm jams valve. Install Y-strainer before valve ₦12k
2. *Direction*: Arrow on body = flow direction. Reverse install = valve won’t close
3. *Vertical coil up*: Install coil facing up – Water doesn’t enter coil
4. *Spare coil*: Buy extra 380V coil ₦30k – Coil is first to burn in Lagos voltage spike
5. *Don’t run dry steam*: If steam >180°C, need PTFE seal, not Viton – Viton melts at 150°C

*Bottom line*:
For compressor / water / air 30-40 bar → *China AIRTAC 1″ 380V 4.0MPa SS304 Normally Closed ₦85k New* + *Y-Strainer ₦12k* = *₦97k ready*
If you run factory 24hrs, no downtime → *Germany Burkert 1″ 380V 4.0MPa SS304 ₦350k* – Lasts 10yrs

What size pipe are you connecting to – 1/2″, 3/4″, 1″, or 2″? And is it for air, water, steam, or compressor auto drain? I’ll tell you if you need brass or SS304 and NC or NO so you don’t buy valve that leaks at 40 bar.