UK Product Handbook 2026 - Volume 1

Control systems Self-acting controls

4

Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2025

TI-P036-02 CTLS Issue 7

BX and BXRA Gunmetal Self-acting Control Valves

Description The BX range of two-port valves are used in conjunction with Spirax Sarco SA control systems to provide a self-acting temperature control unit. Available types BX Normally open, single seat with four different orifice sizes: BX2, BX3, BX4 and BX6. BXRA Normally closed, single seat.

Sizes and pipe connections ½" screwed BSP (BS 21 parallel) or NPT.

4.5 21

BX

BXRA

TI-P036-02 CTLS Issue 7

Page 1 of 5

BX and BXRA Gunmetal Self-acting Control Valves

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