2" Pilot Operated Solenoid Valve N/O
Availability: In Stock
Technical Details
SKU
UBP-50K
Position
Normally Open
Port Size
2" NPT Female
Available Voltage
Select Above
Components
Stainless Steel
Seal Material
NBR
Orifice Size
50 mm
Temp Range
15°F - 175°F
Pressure Range
AC: 4.5 - 115 PSI | DC: 4.5 - 85 PSI
Flow Rate
Cv 50 (Approx 385 GPM @ 60 PSI)
Power (AC Coils)
110V AC: 22 VA | 220V AC: 23 VA | 24V AC: 21 V
Power (DC Coils)
12V DC: 18 W | 24V DC: 18 W
Coil Connection
DIN43650A
Coil Class
Class H (356° F)
Response Time
Fast Acting (Less than one second)
Weight
8.82 lbs
Height
6.89"
Length
6.50" port to port
Width
4.72"
CAD Files
Available Upon Request
Certification
UL Recognized
Product Overview
The UBP-50K is a 2" Pilot Operated Solenoid Valve with NBR seals. It operates in a normally open state and maintains flow during power loss. The valve is UL Recognized (certifications are available upon request.)
This model fits large diameter piping where uninterrupted flow is required. Typical uses include main utility bypass lines and safety driven systems.
The piloted design supports high flow capacity when pressure differential is present. The brass body and stainless steel internal components support continuous duty use with non-corrosive fluids.
Each valve includes a mounted solenoid coil with multiple voltage options. A DIN electrical connection allows integration into demanding control panels.
The piloted design enables the valve to manage substantial flow rates when adequate pressure differential is available. The brass valve body provides durability for non-corrosive fluids, while stainless steel internal components support reliable operation in continuous-duty environments. When properly applied, the valve is suitable for water, air, compatible liquids, and light oils commonly found in industrial and commercial systems.
A minimum of 4.5 PSI inlet pressure is necessary for proper operation due to the pilot-operated design. Ensure consistent pressure levels, particularly in high-elevation or reduced head height installations. Gravity-fed systems are not recommended.
Each valve is supplied as a complete assembly with a mounted solenoid coil, available in multiple voltage options to match standard industrial power supplies. The standard DIN electrical connection and robust coil design support integration into demanding control panels and automated equipment.
The UBP-50K is frequently selected for main distribution and high-capacity control applications where maximum flow must be maintained during power interruption without compromising operational reliability.
Why UL Recognition Matters
UL Recognition confirms that key electrical components have been evaluated for safety and compliance with applicable UL standards. This reduces the risk of electrical failure, insulation breakdown, and overheating in controlled systems, particularly in panel-integrated or continuous-duty applications.
Always follow proper installation practices and confirm material compatibility with your fluid, pressure, and temperature requirements.
