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Lubrication Systems

RH-2 Inspecting Volumetric Distributor

Also sold as the RH-2 Inspecting Volume Type Distributor

Pick the code on your nameplate

2-outlet configuration

WhatsApp for a pricequoting RH-22Datasheet PDF ↓Photo of the nameplate is enough; send it with the chat.No part in hand? Tell us the machine, the number of lube points and the interval instead and we will name it.
RH-2 Inspecting Volumetric Distributor

The RH-2 Inspecting Volumetric Distributor is the first-generation inspecting volumetric block for oil circuits. Built with 2, 3 or 5 outlets, each set independently to a dose between 0.03 and 0.3 ml per cycle.

How it works

Oil from the main line charges each piston chamber and compresses its spring, measuring and accumulating the dose. When main-line pressure is taken off, the spring injects that measured dose into the branch tube and on to the lubrication point.

A signal pin on each outlet extends while the chamber is charging and retracts on delivery, so a working circuit can be confirmed by eye without instruments, the same inspecting principle the RH-3 carries forward.

Each outlet is set to its own dose at manufacture, so one block can feed points with different demands. The dose codes are quoted in outlet order as part of the model number.

Specifications

Number of Outlets2 (RH-22) / 3 (RH-23) / 5 (RH-25)
Common Discharge Capacity0.03 / 0.06 / 0.1 / 0.2 / 0.3 cc per outlet, per cycle
Action Guarantee Pressure8 – 12 kgf/cm²
Recommended Viscosity20 – 500 cst
ConfirmationMechanical signal pin per outlet
System TypeVolumetric (inspecting) lubrication

Model matrix by order code

CodeConfiguration
RH-222-outlet configuration
RH-233-outlet configuration
RH-255-outlet configuration

Dimensions

Ask us for the dimensioned drawing before machining a mounting.

How to read the order code

RH-250306102030RH-2 type, five outlets, doses 0.03 · 0.06 · 0.1 · 0.2 · 0.3 ml per cycle in outlet order.
1
Type
RH-2
2
Outlet count
2 = two · 3 = three · 5 = five
3
Dose per outlet, in outlet order
03 = 0.03 ml · 06 = 0.06 · 10 = 0.1 · 20 = 0.2 · 30 = 0.3 ml/cyc
*
One dose code only
Every outlet takes that dose: RH-2503 is five outlets at 0.03 ml

Before you order

  • Specify RH-3 instead for new designs: same principle, higher action pressure (12 – 15 kgf/cm²) and a four-outlet option.
  • The pump must have a pressure take-off mechanism. Without pressure relief the spring never injects and no dose reaches the point.

Warranty

One year against manufacturing defect from date of invoice.

How it pairs

The RH-2 Inspecting Volumetric Distributor is commonly specified alongside the TZ Type Oil Lubrication Pump and the HL Type Oil Lubrication Pump. That is the same recommendation carried on its own datasheet, not a generic same-category suggestion.

Used on

Machine tool ways and screwsLight machinery with few lubrication pointsExisting RH-2 circuits needing replacement blocks