A 2-port pneumatically actuated on /off bronze valve for use on water, air, oil and gases. It can also be used on lower specification steam applications.

A pneumatic signal acts on the actuator piston to open or close the valve with a spring return action. The valve plugs have a PTFE soft seal ( G ) to provide a tight shut-off. A valve position indicator is included on standard and flow regulator models.

With increasing pressure on industry to reduce carbon emissions and save energy, a reduction in the running costs of plant comes as a welcome opportunity. Therefore, we have listened to customers' concerns regarding compressed air waste and have designed the SP400 to have negligible running costs; typically consuming less than 1% of the air of a traditional electropneumatic positioner.The SP400 has been designed to ensure ease of commissioning with its simple user interface and straight forward set-up procedure. No specialist skills are required to get your digital valve positioner up-and-running soyou can be confident that it will be right, first time.The SP400 has an adaptive action that compensates for fluctuations in supply pressure and valve stem friction, thus enabling guaranteed process stability.Non-contact magnetic feedback eliminates hysteresis and ensures accuracy. Unlike traditional feedback arms, the innovative non-contact feedback system is unaffected by corrosion that can cause positioners to stick orgive inaccurate readings. Fewer components in the overall design mean guaranteed long-term reliability and reduced lifecycle running costs saving maintenance time.

The SP500 is a fully featured communicating smart valve positioner for demanding applications that has been designed for easy commissioning with its user-friendly interface and straightforward set-up procedure.Reliability and accuracy are paramount with all instrumentation and the SP500 takes these aspects to a new level; the use of piezo-electric technology at the heart of the positioner means accurate conversion of signal-to-position and gives it unrivalled reliability when compared to traditional positioner technology. With increasing pressure on industry to reduce carbon emissions and save energy, a reduction in the running costs of plant comes as a welcome opportunity. Therefore, we have listened to customers' concerns regarding compressed air waste and have designed the SP500 to have negligible running costs; typically consuming less than 1% of the air of a traditional electropneumatic positioner.The SP500 has an adaptive action that compensates for fluctuations in supply pressure and valve stem friction, thus enabling guaranteed process stability.Non-contact magnetic feedback eliminates hysteresis and ensures accuracy. Unlike traditional feedback arms, the innovative non-contact feedback system is unaffected by corrosion that can cause positioners to stick or give inaccurate readings. Fewer components in the overall design mean guaranteed long-term reliability and reduced lifecycle running costs saving maintenance time.

The EL3500 series actuators are suitable for on / off control, modulating control with valve motor drive controller or modulating control with its integral valve positioner electronics.

EL7200 series electric actuators are available for use with the following supply voltages: 230 Vac, 115 Vac and 24 Vac. This range of electric actuators has three user-configurable control modes as standard:

• (VMD) Valve Motor Drive,
• (0 / 4 - 20 mA) modulating control or
• (0 / 2 - 10 Vdc) modulating control.

When they have been fitted to a control valve they provide modulating control or on / off action

The EL5060 and EL5061 series actuators are reversible actuators having a linear output with power fail, spindle extend. These actuators are suitable for either two position or modulating control dependent on the controller or other switching device providing the input signal.

The EL5600 series electric actuators are reversible having linear output.

The EL5600 series electric actuators are reversible having linear output.

The AEL5 series electric actuators are reversible having linear output.

Available types

AEL5 actuators are available with 4 supply variants, 230 Vac , 115 Vac , 24 Vac and 24 Vdc all being suitable for a VMD (Valve Motor Drive) input power signal. At extra cost, actuators can be fitted with a positioner input card that can accept a 4 - 20 mA or 2 - 10 Vdc control signal - Please note that this option is not available for the 24 Vdc supply variant.

AEL5 actuators can be ordered with or without a potentiometer, those ordered with will be fitted with a 1 kΩ potentiometer as standard. The potentiometer can be used in conjunction with the positioner for a 2 - 10 V or 4 - 20 mA input signal, or as feedback for VMD. Also available are auxiliary limit switches and anti-condense heater. See TI-P358-28 for further details on the accessories

The series A electric actuators are suitable for control of two and three port globe valves. There are four types offering on /off or regulating control using either external motor contactors or integral motor controls (switched logic).

The BVA300 series are pneumatic rotary actuators which automate Spirax Sarco ball valves in a wide range of industrial applications. BVA300 actuators are provided with bi-directional travel stops that allow a rotation of 90º ± 5º. Linkage is made with the new BVL_X kits with extended stem.

The range of PN1000 and PN2000 series pneumatic actuators are single spring linear actuators (with exception to the PN1700 and PN2700 series) having 5 diaphragm sizes for matching the requirements of different control valves at various differential pressures.

Each actuator is fitted with a combined mechanical stroke indicator and anti-rotation guard. These actuators are designed to be used with the C series 2-port control valve.

Valve actuator that moves according to the amount of air pressure applied to a diaphragm.

Comprehensive selection of pneumatic actuators to meet every application.

The PN9000 series actuators are a compact range of linear actuators that are available in 3 diaphragm sizes for matching the requirements of valves at various differential pressures.

Each actuator is fitted with a mechanical travel indicator and incorporates a fully-rolling diaphragm, which provides good linearity over the operating stroke.

The PN9400 series actuators are a compact range of linear actuators that are available with a single operating diaphragm size for matching the requirements of DN125 to DN200 SPIRA-TROL valves at various differential pressures. Each actuator is fitted with a mechanical travel indicator and incorporates a fully-rolling diaphragm, which provides good linearity over the operating stroke.

The TN2000 series pneumatic piston actuators are designed for use with DN125 to DN200 SPIRA-TROL control valves. There are three versions available: Single-acting (with spring), Double- acting (with spring) and Double-acting (no spring) for matching the requirements of valves at various differential pressures and in a variety of applications.

The AEL6 series electric actuators are reversible having linear output.

A range of compact linear actuators having 6 diaphragm sizes for matching the requirements of different valves at various differential pressures. Each actuator is fitted with mechanical stroke indicators and incorporates a rolling diaphragm to give linearity over the full operating stroke. For precise valve positioning on modulating applications and when using higher pressure spring range actuators a positioner must be used. The actuators are designed for easy conversion to spring retract spindle operation (and vice versa) in the field using the same components and without the need of special tools.

A range of compact linear actuators for matching the requirements of DN125 to DN200 valves at various differential pressures. The actuators are fitted with a mechanical stroke indicator and incorporate a semi-rolling diaphragm to produce good linearity over the operating stroke.

A range of compact linear actuators for matching the requirements of DN125 to DN200 valves at various differential pressures. The actuators are fitted with a mechanical stroke indicator and incorporate a semi-rolling diaphragm to provide good linearity over the operating stroke.

A range of compact linear actuators having 5 diaphragm sizes for matching the requirements of different valves at various differential pressures. Each actuator is fitted with a mechanical stroke indicator and incorporates a semi-rolling diaphragm which gives good linearity over the operating stroke. For precise valve positioning on modulating applications and when using higher pressure spring range actuators a positioner must be used. A manual handwheel is available as an optional extra for the PN4300, PN4400, PN4500 and PN4600 series actuators.

The PM6 is a 2-port pneumatically actuated modulating stainless steel control valve designed for use on steam, water, air, oil, gases and vacuum applications. As standard it is fitted with a PEEK plug seal for operation up to 180° C, and both the body and shaped-plug have undergone a hardening treatment.

A 2-port pneumatically actuated on / off stainless steel valve for use on steam, water, air, oil and gases. A pneumatic signal acts on the actuator piston to open or close the valve with a spring return action. A valve position indicator is included on standard and flow regulator models. Standard versions have PTFE stem seals for operation up to 180° C. Optionally, high temperature stem seals ( H ) can be provided for operation up to 190° C.