Self-acting Controls

Self-acting controls, the simplest and most reliable solution for controlling temperature.

  • Accurate
  • Reliable
  • Easy to use
  • Easy to install
  • Easy to commission
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Find further information on Self-acting Controls in the sections below, or get in touch for further assistance.

Contact us for advice from our engineers

  • Help on sizing and selection
  • Arrange a visit
  • Answers & advice on products/applications
  • Obtaining quotes & placing orders
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Sales Brochures

Our brochures typically contain the concept, customer benefits and key features of the product.

Title Reference Number Issue File Size
PDF Self-acting temperature controls with 2-port valves SB-F11-07 5 2.76 MB
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Technical Information

Use our technical information sheets for a full technical specification of the product. They typically include:

  • Pressure/temperature limits
  • Materials
  • Sizes & connections
  • Dimensions & weights
  • Capacity charts
  • Ordering information
Title Reference Number Issue File Size
PDF 2-port Self-acting Temperature Control Valve Selection for Heating and Cooling Applications TI-S21-07 1 695 KB
PDF 37D and 37DE Pilot Operated Temperature Control Valve with SG Iron Body TI-P102-01 4 671 KB
PDF BM, BMRA, BMF and BMFRA Self-acting Control Valves TI-P036-01 5 112 KB
PDF BX and BXRA Gunmetal Self-acting Control Valves TI-P036-02 4 124 KB
PDF HL17 High Limit Cut-out TI-P073-11 2 140 KB
PDF KA31, KA33, KB31, KB33 and KC31 Cast Iron Self-acting Control Valves TI-P078-02 10 127 KB
PDF KA43, KB43 and KC43 Steel Self-acting Control Valves TI-P078-06 5 135 KB
PDF KA51, KB51 and KC51 Bronze Self-Acting Control Valves TI-P078-04 6 133 KB
PDF KA61, KA63 and KC63 Stainless Steel Self-acting Control Valves TI-P078-08 5 211 KB
PDF KX31, KX33, KY31 and KY33 Cast Iron Self-acting Control Valves TI-P078-01 8 371 KB
PDF KX43 and KY43 Steel Self-acting Control Valves TI-P078-05 6 228 KB
PDF KX51 and KY51 Bronze Self-acting Control Valves TI-P078-03 9 286 KB
PDF Normally Closed Self-acting Control Valve Body Range TI-S21-04 3 86 KB
PDF Normally Open Self-acting Control Valve Body Range TI-S21-03 3 71 KB
PDF NS and NSRA Gunmetal Self-acting Control Valves TI-P049-01 6 92 KB
PDF SA121, SA122, SA123, SA128 and SA1219 Self-acting Temperature Control Systems TI-P046-01 11 417 KB
PDF SA422 Stainless Steel Self-acting Temperature Control Systems TI-P380-01 3 142 KB
PDF SB and SBRA Gunmetal Self-acting Temperature Control Valves TI-P044-01 8 135 KB
PDF TA10A and TA10P Steam Tracing Temperature Control Systems TI-P350-01 3 128 KB
PDF Temperature Control Ancillaries TI-P033-01 5 101 KB
PDF TW Three-port Self-acting Control Valve For Liquid Systems TI-P047-01 12 726 KB
PDF Type 130 and HL10 'Safeguard High Limit Control' TI-P073-03 6 108 KB
PDF Type 58 Temperature Control Valve TI-P041-02 4 118 KB
PDF Type 58 Temperature Control Valve Capacities and Typical Applications TI-P041-01 2 53 KB
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Installation & Maintenance Instructions

Clear & accurate guidelines on installation & maintenance. They typically include:

  • General safety information
  • General product information
  • Installation
  • Commissioning
  • Operation
  • Maintenance
  • Spare parts
Title Reference Number Issue File Size
PDF 202 Control IM-P035-05 2 124 KB
PDF 205 Control IM-P035-08 2 140 KB
PDF 37D and 37DE Temperature Control Unit IM-P102-08 1 61 KB
PDF 37D and 37DE Temperature Controls IM-P102-04 6 364 KB
PDF 37D Temperature Control Valve Supplementary Safety Information IM-P102-09 1 38 KB
PDF HL17 High Limit Cut -out IM-P073-10 2 287 KB
PDF Manual Actuator - Knob Adjustment IM-P381-02 2 252 KB
PDF MC Temperature Control Systems Types MCO, MC1 & MC2 IM-P046-09 2 42 KB
PDF SA Control Valve Types: BM, BMF, BX, SB, NS, KA, KB, KC, BMRA, BMFRA, BXRA, SBRA, NSRA, KX, KY IM-S21-01 7 356 KB
PDF SA Temperature Control Systems Supplementary Safety Information IM-S20-04 1 28 KB
PDF SA Temperature Control Systems Type 422 and 423 IM-P380-02 2 47 KB
PDF SA121, SA122, SA123, SA128 and SA1219 Self-acting Temperature Control Systems (Dial Adjustment) IM-P382-01 4 229 KB
PDF SA121, SA122, SA123, SA128 and SA1219 Self-acting Temperature Control Systems (Knob Adjustment) IM-P381-01 5 255 KB
PDF SA422 and SA423 Self-acting Temperature Control Systems (Dial Adjustment) IM-P046-12 3 295 KB
PDF SA422 and SA423 Self-acting Temperature Control Systems (Knob Adjustment) IM-P046-11 4 171 KB
PDF Small Water Temperature Control, The Water Baby IM-P103-07 3 96 KB
PDF Spirax Sarco Type DHF2 Cylinder Control IM-P039-02 1 65 KB
PDF TA10A and TA10P Steam Tracing Temperature Control Valves IM-P350-02 2 109 KB
PDF Temperature Control Systems Types 121, 122, 123, 128, 1219 and 422 IM-P046-08 5 78 KB
PDF TW Temperature Control Valve IM-P047-04 7 794 KB
PDF TW Valves Supplementary Safety Information IM-P047-05 1 38 KB
PDF Type 130 and HL10 Safeguard High Limit Control IM-P073-08 6 145 KB
PDF Type 58 Control Valve IM-P041-03 4 169 KB
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Steam Engineering Tutorials

Tutorials explaining the principles of steam and heat transfer, specific to this product section.

Self-Acting Controls

Basic self-acting control theory is discussed, alongside the different types of direct-acting and pilot-operated valves, controllers, and applications for the proper selection of temperature and pressure control of steam and water systems.

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Calculators

The appropriate calculator to help designers and engineers select and size the products they need.

Control Valves

Suitable for steam and water, determine valve Kv, flowrate, or pressure drop using this calculator.

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CAD Drawings

CAD drawings enabling you to see exactly how the product is constructed. You can also drop these into your own schematics.

Self-acting Control Valves - CAD Drawings

Self-acting Actuators & Sensors - CAD Drawings

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Contact us for advice from our engineers

  • Help on sizing and selection
  • Arrange a visit
  • Answers & advice on products/applications
  • Obtaining quotes & placing orders