Based on your search for a 2-inch solenoid valve, I found a well-documented and versatile option, as well as a more general-purpose alternative. Here is a detailed comparison:
| Feature | WIC Valve 2BCR-2-D | OLDAJNGK 2W Valve |
|---|---|---|
| Primary Source | Manufacturer Website-1 | Amazon-2 |
| Valve Type | Pilot diaphragm, normally closed-1 | Direct-acting, normally closed (likely)-3 |
| Pressure Range | 4.5 PSI to 230 PSI-1 | Not specified (data incomplete) |
| Media | Air, inert gas, liquid, water-1 | Water, air, gas-2 |
| Flow Rate (Cv) | 48 (for 2" model)-1 | Not specified |
| Electrical Options | AC/DC, 12V/24V/110V/220V-1 | AC/DC, 12V/24V/110V/220V-2 |
| Connection | 2″ NPT Female-1 | NPT or BSP threads available-2 |
| Estimated Price | Not listed | ~$210.51 (list price)-2 |
???? Key Technical Considerations
For your application, the two main types of valves have important performance differences, as discussed in an engineering forum-4.
For High Flow/High Pressure: The Pilot Diaphragm valve (like the WIC 2BCR) is generally preferred. It uses system pressure to assist opening, allowing for higher flow with a smaller, more energy-efficient solenoid-1-4.
For Low Pressure or Simplicity: Direct-Acting valves (likely the type of the OLDAJNGK) use the solenoid's force directly to open and close. They can work from 0 PSI but typically handle lower flow rates for a given size and require more power-4.
Coil Duty: The WIC valve features a 100% duty cycle (ED 100%) coil, meaning it can be energized continuously without overheating-1. This is critical for long-duration operation.
???? How to Choose the Right Valve
To make the best choice, you need to define your specific operating conditions. Consider the following:
| Selection Factor | Critical Questions | Why It Matters |
|---|---|---|
| Operation | Is the valve open for short bursts or long periods? | Determines required coil duty cycle. |
| Pressure | What is the exact minimum and maximum pressure? | Ensures the valve will open reliably and not be damaged. |
| Media | What specific gas or liquid? Is it compatible with NBR seals? | Material compatibility prevents seal failure. |
| Voltage | What power supply (AC or DC) and voltage is available? | Must match the coil voltage exactly. |
| Performance | Is a high flow rate more important than operating at very low pressure? | Decides between pilot diaphragm or direct-acting types. |
⚠️ Important Warnings Before Purchase
Verify Port Standard: Ensure the valve's NPT (National Pipe Thread) matches your system's threads. An incompatible standard like BSP (British Standard Pipe) will not seal properly-2.
Confirm Seal Material: Both listed valves use NBR (Nitrile) seals-1-3. While suitable for air, water, and oils, verify compatibility if your media is a special chemical, fuel, or has extreme temperatures. https://store.unigulfsupply.com/product/electric-solenoid-valve-2inch-for-water-air-gas/