HIR Panel and Bracket Mounting: Check the Drawing Before Ordering

Choose the drawing before choosing the mounting hardware

The HIR catalogue has separate drawings for the standard handle-adjusted groups and the air-operated HIR3120 and HIR4120 configurations. [1] A quotation described only as “HIR3000 size” leaves the drawing selection incomplete. Record the complete proposed supply code, setting type, port and accessory selection on the drawing request. Where the catalogue uses an unfilled square in a model label, retain that unresolved choice instead of turning the figure label into an order code. The existing control-selection guide covers the difference between manual and air-operated setting; this checklist begins with the mechanical drawing review.

• Select the HIR setting configuration
• HIR precision-regulator product and catalogue

Read panel dimensions independently of bracket dimensions

Printed page 78 shows panel-mounting sketches for the three standard handle-adjusted groups. Each sketch labels a panel-hole diameter and maximum panel thickness; the nearby bracket views show a different mounting-hole spacing. [1] Keep these measurements in separate fields. The following transcription is for comparison against the original figure, not a complete drilling template. It omits other dimensions, tolerances, mounting loads and assembly instructions, all of which must be resolved on the selected drawing before fabrication.

• Open the HIR dimensional drawings, printed page 78

A shared panel-hole size does not establish a shared bracket

The HIR30 and HIR40 standard sketches both show a 12.5 mm panel hole, yet their bracket hole-centre spacings are 36 mm and 60 mm. [1] Checking only the panel opening would miss that difference. As a hypothetical review, suppose an existing plate has a 12.5 mm opening and a 36 mm bracket pattern, and the proposed replacement belongs to the HIR40 standard group. The panel-hole match alone cannot clear the replacement: the bracket pattern requires a separate decision. This is a drawing comparison, not approval to modify the plate or a claim that the regulators have equivalent pneumatic performance.

Distinguish the regulator bracket from modular assembly hardware

Printed page 77 lists B2-IR, B3-IR and B4-IR in the regulator specification table. A separate modular-combination table uses B210L/B310L/B410L for L brackets and B210T/B310T/B410T for T brackets. [1] Those are different catalogue references with different contexts. Ask the supplier to itemize which bracket, connection parts and gauges belong to the offered assembly. The modular table names AF and AFM components; it does not establish that an HDA or similarly named component can be connected with the same hardware.

• Check both accessory tables on printed page 77

Do not extend a manual panel sketch to an air-operated version

The HIR3120 and HIR4120 drawings have an upper control connection where the standard configurations show the hand-setting arrangement. Their drawings are presented separately on page 78; that page does not provide the same panel-mounting sketch for them. [1] A shared body group or bracket reference is therefore insufficient evidence for copying the manual panel arrangement. Request the chosen air-operated unit’s mounting drawing and control-connection identification. The catalogue’s setting-type note and model rows also contain an inconsistency, discussed in the control-selection guide; obtain the current supply code before approving the drawing.

Reserve the space the bare drawing does not settle

A component outline is only one part of an installed assembly. Put the selected gauge, adjustment access, fittings, tubing path and access for the agreed service task on the proposed layout. Ask the responsible designer and supplier to confirm their required space; this article provides no universal clearance distance. The catalogue distinguishes a pilot vent from the main vent, but those labels do not specify a permitted exhaust route, back pressure or connection method. Keep the selected model’s venting and installation instructions as an open document requirement instead of treating a port label as permission to connect piping.

• Pressure-regulator selection and performance requirements
• General FRL installation handover checks

Attach a drawing-review sheet to the quotation

Give purchasing and the mechanical designer one revision-controlled sheet. It should show what has been checked, which source supports it and who must close the remaining items. Do not replace an unresolved field with a guessed value simply to release the order. A bracket photograph is not a confirmed bill of materials, and receiving a dimension drawing is not evidence that the pneumatic duty has been approved.

• Send the HIR model and drawing-review requirements

Catalogue basis and limits of this checklist

All HIR dimensions and accessory references above are transcribed from the customer catalogue dated 21 June 2025, printed pages 76–78. [1] The original catalogue and its published HIR extract were visually checked for this article. These are catalogue references rather than a model-specific installation manual. Confirm the current drawing and supplied configuration with XMC. No mounting torque, exhaust arrangement, clearance allowance, interchangeability or application certification is established here.

• [1] XMC HIR catalogue, printed pages 76–78