Treloar Products

We specialise in engineering and supplying reliable critical fluid transfer equipment for tank trucks, service stations, terminals, depots, gas production plants and more.

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  • Tank Truck Equipment
  • Service Station Equipment
  • Nozzles & Dispensing Equipment
  • Terminal & Depot Equipment
  • Fluid Transfer Fittings
  • Valve Products
  • Projects

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Order codes Spares









7HL-1K: Nozzle kit

7HL-2K: Kit seal spout 7HL-25

7HL-HI-BLK: Insulator hand black







OPW 7HL for heavy duty high flow truck, bus & fleet service.
If you operate a full service truckstop, refuel your own fleet, or manage a cardlock refuelling location, the low cost, long life and durability of the OPW 7HL high flow nozzle can help increase your productivity, sales and profits.


Even, smooth spray pattern minimises diesel foaming and false shut-offs.
Extra long anchor spring keeps the OPW 7HL securely in most large fill openings.
To help reduce spills, a unique lever design assures positive shut-off, even if held wide open.
Three-position hold-open device with one hand latching means easy setting of flow rate.
Rugged cast aluminium body is light weight and easy to handle.
Dash-pot action for smoother closing action and reduced line shock.
Dual poppets, easy to open nozzle against high inlet pressure.
Shut-off mechanism is in a dry air chamber, giving better repeatability and eliminating the need for a filter, which may clog and reduce flow rates to unacceptable levels.
Outlet check valve significantly reduces spillage.
Fail safe poppet closes with the flow in compliance with
UL 842, preventing discharge with excess pressure.
Listed by Underwriters Laboratories, Inc. Complies with N.S.C. General Supplementary Certificate S 3/0 & the requirements of AS1940-1993 including the provision of an attitude valve.
Readily repaired in the field, seven nozzle repair kits are available for nozzle service


Inlet Thread: 25mm (1”) BSP Parallel Female
Max. Static Pressure: 350 kPa (50psi)
Weight: 1.5kg

Latest news

Jun 20, 2022
A nitric acid transfer solution for Malindra Group
We often get called in by customers who are using a product that hasn’t been working for them. There’s nothing more we love than problem-solving and finding a solution that works!  

Jun 02, 2022
Problem-solving for the Koppers Australia - Newcastle Plant
The team at the Koppers Australia - Newcastle Plant recently approached us with a tricky challenge. They advised they have a need to load and unload ships with products that are quite difficult to deal with without damaging the ship loading hoses and spilling product. 

May 04, 2022
Unique design solution to onsite mining challenge
Treloar was recently approached by engineering firm, Aspec, to come up with a structural solution for BHP for an onsite mining challenge.

Apr 04, 2022
Progress Update: Wesfarmers-CSBP liquid ammonia loading arms
In December 2021 we shared our initial case study on our project for Wesfarmers-CSBP who had successfully been using a Treloar solution for their liquid ammonia transfer system since 1998. In 2021 Wesfarmers approached Treloar with a need for emergency breakaways, which led to a plan to address ...

Dec 08, 2021
Case Study: Wesfarmers-CSBP liquid ammonia loading arms
Wesfarmers-CSBP has been using a Treloar solution for their liquid ammonia transfer system since it was originally installed in 1998 when Treloar worked with an international supplier to deliver many cutting edge projects and introduce new technologies to Australia. In this case, it was for Ammonia ...