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The Western Enterprises RPB-5-3P (also identified as PV3) is a commercial-grade, industrial one-piece foil and Mylar balloon push valve configured with a 3/8\" Male National Pipe Thread (MNPT) inlet connection. Manufactured by Western Enterprises, this component is designed for gas delivery and manual tactile actuation within helium inflation systems, inert gas manifold drops, and specialty gas testing equipment.
Features
One-Piece Monolithic Design: Integrates the actuator tip and the 3/8\" NPT thread into a single unit to reduce internal leak vectors.
Specialized Foil/Mylar Optimization: Long, tapered probe profile designed to glide past self-sealing flaps of foil or Mylar balloons without tearing.
Instantaneous Positive Shut-Off: High-tension internal spring design seals the flow path immediately upon release of manual pressure.
Corrosion Resistance: Thick-walled brass construction handles moisture and atmospheric contaminants without scaling or oxidizing.
Specifications
Manufacturer: Western Enterprises / Scott Fetzer Co.
Model / Part Number: RPB-5-3P
Alternative Internal MFG Part Number: PV3
UPC / GTIN: 698944084837
UNSPSC Commodity Code: 40141600 (Valves)
Valve Type: Push-actuated linear piston / poppet style (Normally Closed)
Primary Gas Media: Helium (He), Inert Gases (Argon, Nitrogen)
Inlet Connection: 3/8\" Male NPT (MNPT) – Tapered Pipe Thread complying with ANSI/ASME B1.20.1 standards
Outlet Connection: Tapered extension tip for foil/Mylar balloon valves
Flow Configuration: 2-Way, 2-Position directional control flow path
Flow Orientation: Straight-through linear orientation
Return Mechanism: Internal spring-return to Normally Closed (NC) position
Inlet Pressure Rating: Optimized for standard regulated helium inflator outlet pressures (typically 40–100 PSIG)
Main Valve Body Material: Machined C36000 Free-Cutting Brass alloy
Exterior Finish: Natural, clean-machined raw brass finish
Internal Seal Components: Synthetic elastomer / rubber compounds
Actuation Piston/Tip Material: Brass or hard polymer sleeve
Structural Envelope: One-piece compact construction
CGA Compliance: Machined and assessed in accordance with Compressed Gas Association (CGA) design guidelines
Country of Origin: People's Republic of China (PRC) under Western Enterprises US design criteria
Quality Assurance Testing: 100% factory-tested for pressure containment and operational seal integrity
California Proposition 65 Warning: This product can expose you to lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.
Thread Engagement Requirement: Clean industrial-grade PTFE thread-sealing tape or gas-compatible thread sealant paste must be applied to the 3/8\" Male NPT inlet
Installation Method: Use standard open-ended wrench on integrated hex flats of the valve body; do not over-torque
Leak Detection Requirement: Post-installation pressure testing using certified, low-viscosity, non-corrosive gas leak detection fluid
Maintenance Classification: Non-repairable, factory-sealed component; complete assembly must be replaced upon wear or seal degradation
Applications
Commercial Helium Inflation Stations: Integrated directly into high-volume balloon inflation regulators (such as Western RPB series inflators) used by event planning firms, party supply hubs, floral distribution networks, and entertainment venues.
Industrial Gas Manifold Drops: Employed as a quick-actuating, low-volume purge or sampling valve on localized low-pressure branch lines within inert gas systems.
Specialty Gas Testing Equipment: Serves as a momentary manual injection valve within localized test benches or calibration panels managing non-corrosive, non-toxic gas media.
