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-P078-06 CTLS Issue 9
KA43, KB43 and KC43 Steel Self-acting Control Valves
Description The KA, KB and KC 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 KA43
Normally open with flanged connections.
Normally open with phosphor bronze pressure balancing bellows with flanged connections. Normally open with stainless steel pressure balancing bellows with flanged connections.
KB43
4.5 33
KC43
Note: Pressure balancing bellows enables the valve to operate against higher differential pressures. Standards These products fully comply with the requirements of the European Pressure Equipment Directive 2014/68/EU and carry the mark when so required. Certification As standard these products are available with a manufacturers’ Typical Test Report. Additionally, at extra cost, certification to EN 10204 3.1 can be supplied. Note: All certification / inspection requirements must be stated at the time of order placement.
KA43
Size and pipe connections KA43 DN15, DN20, DN25, DN32, DN40 and DN50 (½", ¾", 1", 1¼", 1½" and 2") KB43 DN25, DN32, DN40 and DN50 (1", 1¼", 1½" and 2") KC43 DN32, DN40 and DN50 ( 1¼", 1½" and 2")
Standard flanges : EN 1092 PN25 and EN 1092 PN40, ASME 300 and BS 10 Table H. The following flanges are available on request:
- ASME 150 - JIS/KIS10 - JIS/KIS20
KB43 and KC43
TI-P078-06 CTLS Issue 9
Page 1 of 5
KA43, KB43 and KC43 Steel Self-acting Control Valves
Powered by FlippingBook