Imer Small 50 Injection Pressure Meter Unit, 1107515

Features

• Injection control relay switch maintains consistent pressure to ensure material works its way through the void being filled

The Imer Small 50 Injection Pressure Meter Unit is a dedicated pressure‑control accessory for the IMER Mighty Small 50 / Small 50 EVO pump that lets you monitor and automatically regulate injection pressure during grout and injection work. Designed specifically for controlled pressure grouting and injection applications, this unit helps maintain a consistent pressure so material reliably fills voids, joints, cracks, and cavities without over‑pressurizing or starving the pump.

What is the Imer Small 50 Injection Pressure Meter Unit?

The Imer Small 50 Injection Pressure Meter Unit (commonly listed under IMER part numbers in the 11075xx range) is a pressure‑meter and control assembly that mounts on the discharge side of the Mighty Small 50 pump. ContractorsDirect and other dealers describe it as a “pressure meter unit” or “injection pressure meter unit” for the Small 50, with a built‑in injection control relay switch.

Key functional description:

• It includes a pressure gauge and pressure switch group to measure and control the injection pressure in the material line.

• The injection control relay switch maintains consistent pressure, helping ensure the grout or injection material works its way fully through the void being filled.

• It is part of the IMER injection kit for the Small 50 EVO, which IMER lists as including a “pressure meter and pressure switch group” plus hoses, gun, and reducer fittings.

This makes the Imer Small 50 Injection Pressure Meter Unit the core pressure‑control element of the Small 50’s injection configuration.

How the Pressure Meter Unit Works with the Small 50

The IMER Small 50 is a rotor/stator (progressive cavity) pump commonly used for grout injection, tuck‑pointing, and controlled pressure applications. When set up with an injection kit, the flow and pressure need to be controlled to avoid blowing out joints or leaving voids unfilled.

The pressure meter unit provides:

• Real‑time pressure readout

  • A pressure gauge mounted on the unit shows the material pressure during pumping.

  • This allows the operator to visually monitor injection pressure and adjust motor speed or flow as needed.

• Pressure switch / relay control

  • A pressure switch is integrated with the unit and wired through an injection control relay.

  • When the set pressure is reached, the relay can signal the pump to stop or idle, maintaining a consistent pressure rather than continually increasing.

• Consistent injection pressure

  • The relay‑controlled system helps ensure the material “works its way through the void being filled” at a controlled pressure, which is particularly important for structural and repair work.

In IMER’s Small 50 EVO documentation, the “Injection kit for A1 panel” (115V/230V) is described as including:

• Pressure meter and pressure switch group

• Brass reduction fittings (M 1" to F 3/4")

• Small 50 gun with deflector Ø 16

• 10 m + 5 m material hoses Ø 25 with camlock couplings

The Imer Small 50 Injection Pressure Meter Unit is the “pressure meter and pressure switch group” portion of this kit.

Features and Components

Based on IMER’s injection kit description and reseller listings, the main features of the Imer Small 50 Injection Pressure Meter Unit include:

• Injection control relay switch

  • Controls the pump based on pressure, maintaining a set injection pressure.

  • Helps prevent over‑pressurizing voids, joints, or cracks.

• Pressure gauge (material pressure)

  • Provides an analog pressure reading close to the pump outlet or injection line.

  • Gives visual feedback to the operator during injection.

• Pressure switch

  • An adjustable switch that triggers at a set pressure level.

  • Integrated with the Small 50’s control panel logic (A1 inverter panel on EVO models) for automatic start/stop or alarm behavior.

• Fittings and mounting

  • Typically combined with brass reductions and camlock connections to integrate into the material line (e.g., M 1" to F 3/4" reducer).

  • Designed to mount securely on the pump outlet manifold or immediately downstream.

Because it is part of the OEM injection kit, the unit is calibrated to work with the Small 50’s inverter‑driven control panel and rotor/stator flow ranges.

Where the Pressure Meter Unit is Used

IMER and its distributors specifically tie the pressure meter unit to:

• Small 50 EVO injection setups

  • IMER’s Small 50 EVO datasheet lists the “Recommended setup for pressure‑controlled injections” as Small 50 EVO with injection kit, which includes the pressure meter and pressure switch group.

• Grout injection kits

  • IMER’s general mortar spraying & conveying catalog describes injection kits (for various pumps) as including a pressure meter unit and pressure gauge, spray/injection gun, hoses, and deflector.

  • StoneTooling and Master Wholesale list IMER grout injection kits that use the Small 50 as the pumping machine, relying on the pressure meter for control.

• Mighty Small 50 pump‑only packages

  • Some “pump‑only” SKUs for the Mighty Small 50 list “pressure meter unit” as part of the standard components included with the pump.

In all of these, the Imer Small 50 Injection Pressure Meter Unit is a critical component for pressure‑controlled injection work, turning the Small 50 into a controlled‑pressure grout injection system instead of a simple open‑flow pump.

Advantages of the Imer Small 50 Injection Pressure Meter Unit

Adding or using the Injection Pressure Meter Unit with the Small 50 provides several important advantages:

1. Controlled, consistent pressure

   • The injection control relay switch maintains consistent pressure, preventing sudden spikes that can damage substrates or blow out joints.

   • Consistent pressure improves penetration of grout into voids and cracks.

2. Improved quality of injection work

   • Visual pressure feedback via the gauge allows operators to stay within manufacturer‑recommended pressure ranges for specific grout systems.

   • Helps ensure voids are filled and material is not simply bypassing through the easiest path.

3. Safer operation

   • Automatic cutoff via the pressure switch reduces the risk of over‑pressurizing structures, particularly in sensitive repair applications.

   • Reduces some of the burden on the operator to manually judge when to stop pumping.

4. Better integration with Small 50 controls

   • The pressure switch and meter are designed to work with the A1 inverter‑driven control panel on the Small 50 EVO, which can vary rotor RPM and flow.

   • This allows a smooth blend of flow control (via rheostat/inverter) and pressure control (via meter unit).

5. OEM design and reliability

   • As an OEM(IMER) accessory, the pressure meter unit is built and specified to handle the pressures, materials, and flow rates produced by the Small 50.

Typical Applications

The Imer Small 50 Injection Pressure Meter Unit is most valuable in:

• Controlled pressure grout injection

  • Injecting non‑shrink or cementitious grout into masonry or concrete walls, beams, and slabs.

  • Filling voids behind CMU, stone facings, or structural elements.

• Tuck‑pointing and joint filling

  • When combined with a tuckpoint or injection gun, it can help control pressure into mortar joints and bed joints without damaging the facade.

• Void filling and crack injection

  • Low‑pressure filling of larger cracks or cavities that require controlled, monitored pressure.

• Specialty repair and restoration

  • Structural repair projects where engineering specs call for defined injection pressure ranges.

Whenever the goal is to inject material into a confined space at a specific pressure, this unit helps convert the Mighty Small 50 from a simple pump into a pressure‑controlled injection system.

Relationship to Other Small 50 Accessories

The Imer Small 50 platform supports several accessories, and the injection pressure meter unit works alongside them:

• Injection kit for A1 panel (Small 50 EVO)

  • Includes the pressure meter and pressure switch group (this unit), injection gun, hoses, and reducers.

• Vibrating hopper (1107015)

  • Helps keep slow‑moving grout pumpable in the hopper, particularly for tuck‑pointing and grout injection.

• Dual diaphragm compressor

  • Used when spraying; provides air for spray guns and can also be integrated with the Small 50’s logic to control pump start/stop based on air valve position.

• Grout injection guns and hose kits (1107006, etc.)

  • Provide the right nozzles, deflectors, and hose lengths for injection work.

The pressure meter unit is thus one part of a broader, integrated injection system for the Small 50.

Why Choose the Imer Small 50 Injection Pressure Meter Unit?

If you use the IMER Mighty Small 50 / Small 50 EVO for grout injection, tuck‑pointing, or any application where injection pressure matters, the Imer Small 50 Injection Pressure Meter Unit is a key upgrade. By combining a pressure gauge, pressure switch, and injection control relay, it maintains a consistent pressure so injected material can properly fill voids and joints while protecting the structure from over‑pressurization.

Because it is the OEM pressure meter and switch group engineered to work with the Small 50’s A1 inverter panel and rotor/stator pump, it integrates cleanly with existing controls and accessories like the injection gun, hoses, and vibrating hopper. For contractors performing professional grout injection and controlled‑pressure work, the Imer Small 50 Injection Pressure Meter Unit is an essential component that transforms the Small 50 into a precise, pressure‑managed injection system rather than just a basic pump.