Drayton TRV4 Balancing Key and Gland Seal Kit (1x Key & 2x Seals) - 07 35 009

Description

The Drayton TRV4 Balancing Key and Gland Seal Kit (MPN 07 35 009) is a dual-purpose servicing tool for the TRV4 range, combining a presetting key for balancing radiator flow rates with a pair of replacement gland seals for routine maintenance.

The key is used to adjust the presetting function built into TRV4 two-pipe valve bodies, letting an installer balance a radiator's flow rate directly from the TRV rather than relying solely on the lockshield at the far end. The same key is also used to remove and replace a worn gland seal in the valve body, extending the working life of the valve without needing to replace the whole unit.

1

Balancing Key

2

Gland Seals

Dual-Purpose

Tool Function

TRV4

Compatible Range

07 35 009

MPN

On-Site

Servicing Tool

ℹ Good to Know: A free Drayton balancing key is also available by joining The Drayton Community Facebook group and completing the balancing key request form, as an alternative to purchasing this kit.

Accurate Flow Balancing

Balancing system flow rates from the TRV itself is more reliable and accurate than balancing solely via the lockshield, and the setting is preserved across the system once set.

No Risk of Balancing Being Undone

Because the presetting sits inside the valve body rather than an externally visible lockshield, there's no risk of the balancing setting being bumped or turned by accident after commissioning.

Gland Seal Replacement

The same key is used to remove worn gland seals from the TRV4 valve body, allowing the double gland seal to be replaced without draining down the heating system.

Extends TRV Working Life

Replacing a worn gland seal rather than the whole valve extends the working life of the existing TRV4, reducing maintenance cost and disruption.

Compatible Across the TRV4 Range

Works with TRV4 Classic, Chrome, White and Anthracite two-pipe valve bodies that include the presetting facility.

Complete Kit

Supplied as 1x balancing key and 2x replacement gland seals in a single pack, covering both a balancing job and a subsequent seal replacement.

General

MPN

07 35 009

Product type

Balancing key and gland seal kit

Pack contents

1x Drayton balancing key, 2x replacement gland seals

Compatibility

Drayton TRV4 range with presetting facility

Uses

Balancing radiator flow rate from the TRV; removing and replacing worn gland seals

What is the balancing key used for?

It's used to adjust the presetting function inside a TRV4 two-pipe valve body, allowing the installer to balance the flow rate to a radiator directly from the TRV during system commissioning.

Can the key also be used to replace a gland seal?

Yes — it's a dual-purpose tool also used to remove a worn gland seal from the valve body, and this kit includes 2x replacement gland seals for that job.

Why balance from the TRV instead of the lockshield?

Balancing via the TRV's presetting facility is reliable and accurate, and the setting is preserved across the system with no risk of it being undone by an accidentally bumped or turned lockshield.

Is the balancing key available for free?

A free balancing key is available by joining The Drayton Community Facebook group and completing the balancing key request form, as an alternative to purchasing this kit.

Which TRV4 valves is this compatible with?

It's compatible with TRV4 two-pipe valve bodies across the Classic, Chrome, White and Anthracite finishes that include the presetting facility.

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