LR-CAL LPP 30 Pneumatic Hand Pump Kit

LR-CAL LPP 30 Pneumatic Hand Pump Kit Pressure Calibrator Hand Measuring Pump

The LR-CAL LPP 30 Pneumatic Hand Pump Kit is a portable calibration test pump engineered for rigorous testing, adjustment, and verification of mechanical and electronic pressure-measuring instruments. As a marine engineer operating in high-vibration, corrosive shipboard environments, maintaining absolute accuracy across pneumatic control loops—such as main propulsion air start lines, pneumatic automation controllers, HVAC duct pressure switches, and ballast tank pressure transmitters—is critical for regulatory compliance and vessel safety.

The LPP 30 unit is dual-functional, capable of seamlessly switching between positive pressure generation up to 35 bar (500 PSI) and vacuum generation down to -0.95 bar (-28 inHg) via an integrated change-over switch. Built with robust anodized aluminum, brass, and ABS sub-components, this hand measuring pump offers field-ready durability without requiring an external power source or electrical supply.

Model Details

• Manufacturer: LR-CAL (Druck & Temperatur Leitenberger GmbH)
• MPN (Manufacturer Part Number): LPP-30 / LPP 30 Kit
• Equipment Classification: Portable Pneumatic Pressure Calibrator & Hand Test Pump

Key Features

1. Dual Pneumatic Mode: Easily switchable configuration supports both positive pressure generation up to 35 bar and vacuum down to -0.95 bar.
2. Micrometer Fine Adjustment: Features an ultra-precise control valve enabling micro-adjustments for stable, drift-free calibration setpoints.
3. Direct Top-Mount Reference: Allows direct screw mounting of reference pressure gauges or digital calibrators onto the pump body.
4. Self-Contained Portability: Lightweight, compact body with no external power requirements, ideal for remote on-site or machinery space servicing.
5. Modular Adapter Integration: Supplied with flexible test hoses and compatible thread adapter sets (BSP, NPT, or Metric options) for fast instrument hookup.

Applications

• Calibration and loop-checking of pneumatic pressure transmitters in engine control rooms.
• On-site verification of mechanical pressure gauges, manometers, and differential pressure units.
• Testing safety pressure switches, automation control loops, and pneumatic valve actuators.
• Laboratory benchtop testing and workshop quality control routines.
• Marine auxiliary plant instrumentation diagnostics (fuel oil, lube oil, and compressed air systems).

Compatible Equipment Models

• Reference Gauges & Calibrators: LR-Cal LPP-MANO Analog Reference Gauges (DS 63), TLDMM Digital Precision Gauges, TDMC Digital Gauges, and LPC 300 / LPC 200 Electronic Pressure Calibrators.
• DUT Instrument Types: Industrial pressure transmitters, digital manometers, pressure switches, and Bourdon tube pressure gauges with standard threading.

Part Number Cross-References & Accessories

• LPP-30: Base Pneumatic Calibration Test Pump
• LPP-ADAPTER-BSP: Thread Adapter Set (1/8″, 3/8″, 1/2″ BSP with seals)
• LPP-ADAPTER-NPT: Thread Adapter Set (1/8″, 1/4″, 3/8″, 1/2″ NPT with seals)
• LPP-SCHLAUCH: Replacement Test Hose with 1/4″ BSP Female Port
• LPP-WARTUNG: Routine Maintenance Service Kit (O-rings and internal seals)

Frequently Asked Questions

Can the LR-CAL LPP 30 handle both pressure and vacuum testing?

Yes. The unit features an integrated change-over switch that instantly shifts the operational mode between vacuum generation down to -0.95 bar and positive pressure generation up to 35 bar.

Is an external power source required to operate the pump?

No. The LPP 30 is a completely manual, hand-operated pneumatic pump requiring no external electrical power, batteries, or external gas bottles, making it completely self-sufficient for field use.

What thread standards are supported for connecting the unit under test?

The test hose comes standard with a 1/4″ BSP female rotating port. Optional adapter kits are available for NPT, metric (M12x1.5, M20x1.5), and alternative BSP thread formats.

How do I maintain the internal valves if pressure drop occurs over time?

Pressure decay is typically caused by microscopic particulate contamination or worn O-rings on the check valves. You can easily service the unit using the official LPP-WARTUNG service kit containing replacement O-rings and internal seals.