The Dominator PRO

The Dominator PRO Flow Management System is a pre-fabricated unit combining the essential control components and connecting pipework associated with terminals units, into one compact, fully-assembled and tested unit ready for simple and fast on-site connection.

The 40mm H-Body

  • The H-Body unit comprising two T-Ported ball valves
  • Allows easy back flushing, forward flushing and isolation.
  • The position of the handles gives clear indication of flow / bypass mode
  • Designed around 3/4" full bore ball for optimum flow.
  • Can be adapted to 1/2" and 3/4" end connections.
  • Simple attachment to existing fan coil units.
Dominator PRO

Key Features of New 40mm Body

1H-body sub-assembly 48% lighter than previous model.

2Six PTFE seats.

31/2" BSPT Taper threaded connections.

43-way chrome plated ball.

51/2" Tailpiece / Seat retainer with Union nut.

6O-ring between body and seat retainer.

Dominator Features

Benefits for Design Engineers

  • A compact design to help with space limitations.
  • Minimal design involvement.
  • All the necessary components supplied as one factory tested unit.
  • Saves time, reduces specification risks and provides maximum value to the client.
  • Known performance of the assembled unit.

Benefits for Installing Contractors

  • Designed with the BSRIA BG29 guidelines in mind to aid flushing.
  • A lightweight design to reduce bracket requirements and ease installation.
  • Purchasing the individual components and assembling on site is time-consuming, repetitive work that requires considerable labour time.
  • The correct flow control valve will be selected for each terminal unit to avoid re-work and delays in project time plans.
  • Reduced risk of joint leaks (all units pre-tested).

Why Dynamic Balancing

To maximise system efficiencies, it is essential that systems are correctly balanced. A dynamic balanced system results in correct, specified flow rates throughout the building, saving energy, reducing costs and is the key to providing a comfortable indoor environment.

Crane FS ProBalance range includes a variety of dynamic balancing valves that use the latest technology to maintain the required design flow rate, even in part load conditions.

The Crane FS ProBalance range of valves includes; DPCVs and PICVs ensuring pressure independent terminal control.

Crane FS manufacture Dominator PRO configurations for Direct Mount and Remote Mount, typically using Flexible Hoses.


Direct Mount

Z40020S - Z40020R

Z4002FS - Z4002FR

Z4003FS - Z4003FR

Z4004FS - Z4004FR

Z4005FS - Z4005FR

Z40030S - Z40030R

Remote Mount

ZM4301

ZM4001FS - ZM4001FR

ZM40010S - ZM40010R

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40mm centres, supply / return helps on mounting directly onto the fan coil unit.

View the Dominator range


All flow control valves are sized by Crane FS to suit each terminal unit flow rate. Every unit is supplied tagged with terminal unit reference for ease of installation.