The Salamander AccuBoost Flow Restrictor Kit (FLO-RES-KIT) is a genuine Salamander Pumps accessory for adjusting the flow rate from any AccuBoost accumulator vessel. It contains 7 colour-coded flow restrictor inserts covering the full AccuBoost vessel range (60L, 120L, 180L, 300L and 450L) and 2 non-return valves for fitting into the brass vessel connectors. The flow restrictor controls how quickly stored water is released from the vessel — a higher value increases peak flow (shorter boost duration); a lower value reduces peak flow but extends the period of boosted pressure. The correct restrictor for each vessel size is specified in Table 2 of the AccuBoost Installation Manual (page 18), reproduced in the sizing table below. Orientation of the non-return valves and restrictor is critical — always follow the installation manual.
7
Flow Restrictors
2
Non-Return Valves
5 sizes
Vessel Compatibility
Genuine
Salamander OEM Part
ℹ AccuBoost Compatibility: These accessories are designed exclusively for use with Salamander AccuBoost accumulator vessels. Always refer to the AccuBoost Installation and Warranty Manual before fitting. Installation must be carried out by a qualified and competent person.
Source: Salamander AccuBoost Installation and Warranty Manual, Table 2 (page 18). Total output flow = factory pump output (12 l/min) + tank discharge at the restrictor value shown.
Key Features
Adjusts Flow Rate to Match Your Vessel Size
Each AccuBoost accumulator vessel is factory-set to a default flow rate. The FLO-RES-KIT allows this to be adjusted to a higher or lower rate, directly changing the balance between peak flow and boost duration. A higher restrictor value increases peak flow — useful where burst demand is the priority — but the tank depletes faster and the boosted period is shorter. A lower restrictor value reduces peak flow but extends the time that AccuBoost delivers elevated pressure — useful where sustained boosting matters more than peak rate. The correct starting point is the factory-matched restrictor for your vessel size, shown in the sizing table below.
7 flow restrictorsAdjustable flowAll vessel sizes
7 Flow Restrictors Covering All AccuBoost Vessel Sizes
The kit includes 7 colour-coded flow restrictor inserts covering the full AccuBoost vessel range. Restrictors are identified by colour: Green (2 l/min) for 60-litre vessels, Pink (4 l/min) for 120-litre, Grey (6 l/min) for 180-litre, and Pink (18 l/min) for 300-litre. The 450-litre vessel is not restricted at the factory setting. Having 7 restrictors in the kit means you can trial different values above or below the factory setting if fine-tuning is needed for specific system characteristics.
Colour-codedGreen / Pink / Grey2–18 l/min range
2 Non-Return Valves — Correct Orientation is Critical
The kit includes 2 non-return valves (NRVs) for fitting into the brass vessel connectors. Salamander's installation manual states explicitly: correct orientation of the non-return valves and flow restrictor is crucial for AccuBoost correct operation. The NRVs ensure water flows in the correct direction through the accumulator system — preventing backflow into the vessel during tank re-pressurisation and ensuring the restrictor functions as intended. Always refer to the AccuBoost installation manual (Table 2, page 18) for correct assembly orientation before fitting.
2 non-return valvesOrientation critical
Genuine Salamander Part — Fits All AccuBoost Accumulator Models
The FLO-RES-KIT is a genuine Salamander Pumps OEM accessory, designed and supplied to fit the brass vessel connectors used across the full AccuBoost range — 60L, 120L, 180L, 300L and 450L models, pumped and unpumped. Using genuine Salamander parts ensures dimensional compatibility with the brass connectors and maintains the original sealing integrity of the vessel port assembly.
AccuBoost accumulator range — all sizes (60L, 120L, 180L, 300L, 450L)
Pumped / Unpumped
Both
Part Number
FLO-RES-KIT
Supplied By
Salamander Pumps (genuine OEM)
Frequently Asked Questions
Why would I need to change the flow restrictor?
AccuBoost vessels leave the factory with a restrictor matched to their size. You might need to change it if: (1) You want higher peak flow for demanding outlets like power showers — fit a higher-value restrictor (the tank empties faster but delivers more l/min); (2) You want longer boost duration — fit a lower-value restrictor (reduced peak flow but the tank lasts longer per draw); (3) A restrictor has been damaged, lost or is missing from an existing installation; (4) A replacement vessel was installed without the correct restrictor.
Which restrictor colour do I need for my vessel?
Refer to Table 2 in the AccuBoost Installation and Warranty Manual (page 18), reproduced in the sizing table on this page. In summary: 60L = Green (2 l/min); 120L = Pink (4 l/min); 180L = Grey (6 l/min); 300L = Pink (18 l/min); 450L = unrestricted. Always check the manual before fitting — orientation of the restrictor and non-return valves is critical for correct AccuBoost operation.
Does the 450-litre vessel need a restrictor from this kit?
No — the 450-litre AccuBoost vessel is not restricted at the factory setting. The FLO-RES-KIT does not include a restrictor specifically designated for the 450L. If you wish to restrict the flow on a 450L installation, contact Salamander Pumps for advice on the appropriate value for your system requirements.
Can fitting the wrong restrictor damage the AccuBoost?
Fitting an incorrect restrictor will not directly damage the vessel, but it will affect system performance and can lead to warranty issues if the installation deviates from the specification in the manual. More importantly, incorrect orientation of the non-return valves can cause the system to malfunction — Salamander's installation manual specifically flags orientation as critical. Always follow Table 2 and the assembly diagrams in the AccuBoost installation guide.
Is this kit suitable for the AccuBoost Combi and Unvented ranges?
Yes — the FLO-RES-KIT is compatible with the full AccuBoost accumulator vessel range, including Combi and Unvented variants, in both pumped and unpumped configurations. The restrictor fits into the brass vessel connector port, which is consistent across all AccuBoost models.
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