2" Pilot Operated Solenoid Valve
Availability: In Stock
Technical Details
SKU
UBP-50
Position
Normally Closed
Port Size
2" NPT Female
Available Voltage
Select Above
Body Material
Brass
Components
Stainless Steel
Seal Material
NBR
Orifice Size
50 mm
Pressure Range
4.5 - 230 PSI
Flow Rate
Cv 50 (Approx 380 GPM @60 PSI)
Power (AC Coils)
110V AC: 22 VA | 220V AC: 23 VA | 24V AC: 22 VA
Power (DC Coils)
12V DC: 18 W | 24V DC: 18 W
Coil Connection
DIN43650A
Coil Class
Class H (356° F)
Duty Cycle
100% ED (Continuous)
Response Time
Fast Acting (Less than one second)
*Suitable Media
Water - Liquid - Air - Light oil (Viscosity ≤ 20 cst)
Weight
8.71 lbs
Length
6.50" port to port
Width
4.72"
Height
6.50"
Certification
UL Recognized
CAD Files
Available Upon Request
Product Overview
The UBP-50 is a 2" normally closed, pilot-operated solenoid valve designed for high-flow water, air, and compatible liquid applications. Its brass body, stainless steel internal components, and NBR seals provide reliable on/off flow control in industrial water systems, utility lines, and larger fluid distribution systems. With a 50 mm orifice, Cv of 50, and a flow rate of approximately 380 GPM at 60 psi, this valve is suited to applications that require high flow capacity and consistent system pressure.
This 2-way valve remains closed when de-energized and opens when the solenoid coil is energized. Its pilot-operated design uses system pressure to assist operation and requires a minimum differential pressure of 4.5 psi. It is not suitable for gravity-fed systems or applications that cannot maintain the required pressure differential.
The UBP-50 is available with 24V AC, 110V AC, 220V AC, 12V DC, and 24V DC coils. It supports continuous-duty operation within its rated voltage and ambient temperature limits, with a response time of less than one second. The valve is designed for water, air, compatible liquids, and light oils with a viscosity of up to 20 cSt, subject to material compatibility.
Common Applications
- Industrial water supply and utility water lines
- High-flow water distribution systems
- Water treatment and filtration equipment
- Cooling tower water control
- Compressed air distribution systems
- Boiler feedwater and auxiliary water isolation
- Process water distribution and recirculation loops
- Industrial manifolds and main utility lines
- Fluid-handling systems in OEM machinery
- Skid-mounted process equipment and automated control systems
Installation
- Install in a pressurized system that maintains the required minimum differential pressure of 4.5 psi for reliable pilot operation.
- Do not use in gravity-fed systems or low-head applications that cannot maintain the required pressure differential.
- The valve can be mounted in either a vertical or horizontal orientation.
- Follow the flow direction and installation requirements specified for the valve.
- Confirm that the selected coil voltage matches the available power supply before installation.
- Check compatibility of the brass body and NBR seals with the operating fluid before installation; do not assume compatibility with all chemicals or oils.
Why UL Recognition Matters
UL Recognition confirms that the electrical components have been tested to meet UL safety benchmarks. This supports smoother inspection processes and improves acceptance in regulated installations.
*Always follow proper installation practices and confirm material compatibility with your fluid, pressure, and temperature requirements.
