Pisco RVUM4-4 Pressure Control Valve Union with Regulator Valve

The Pisco RVUM4-4 is a pneumatic pressure control valve union with integrated regulator and inline pressure gauge. It combines compact pressure regulation with direct monitoring capability, delivering stable, adjustable pressure control in confined system layouts. The push-lock knob design enables secure adjustment and prevents accidental drift from vibration or shock.

Operating across 0 to 1.0 MPa, this regulator maintains precise set pressures between 0.1 to 0.8 MPa with the integrated gauge displaying 0 to 0.8 MPa (±5% F.S. tolerance). Clockwise rotation increases pressure; counterclockwise decreases it. After adjustment, the knob must be pushed in and locked to prevent unintended rotation.

– Technical Specifications

• Fluid Medium: Air
• Operating Pressure Range: 0 to 1.0 MPa
• Pressure Setting Range: 0.1 to 0.8 MPa
• Gauge Display Range: 0 to 0.8 MPa
• Gauge Tolerance: ±5% (F.S.)
• Temperature Range: 0 to 60°C (non-freezing)
• Port Size: φ4 mm (both connections)
• Main Body: PBT resin
• Seals: NBR or HNBR rubber options

– Key Features

• Compact Union Integration: Regulator and relief mechanism housed within a single union fitting for space-constrained applications
• Push-Lock Knob: Secure locking mechanism prevents accidental pressure drift during operation
• Improved Flow Performance: Approximately 1.3× higher flow rate versus previous generation with reduced set pressure fluctuation
• Gauge Rotation: Integrated pressure gauge direction is rotatable for optimal visibility
• Check-Type Operation: Functions as a check-type regulator when positioned between solenoid valves and actuators
• Union Mounting Compatibility: Maintains backward compatibility with existing union-type mounting dimensions

– Typical Applications

Pneumatic circuits requiring stable, adjustable pressure regulation in compact spaces. Commonly deployed between solenoid valves and actuators, or in applications where confined geometry limits component spacing.

– Compatibility & Integration

The RVUM4-4 accepts φ4 mm tubing at both inlet and outlet ports. For applications demanding pressure accuracy beyond ±5%, external gauges should be installed in parallel. Note: This is a regulator, not a relief valve. Secondary-side pressure spikes exceeding the set value require dedicated safety devices to protect connected equipment.