Parker Hannifin has extended its range of B Series industrial control valves. The latest development includes mechanical spring return versions for applications where the security of this return method are preferred - for example, in applications which have to ‘fail safe’ on air failure or require valves to have a known position when air supplies are re-instated after shut down.
The B Series Range of valves features Parker’s Wear Compensating System (WCS), with each valve being fitted with dynamic bi-directional spool seals that are designed for operating on vacuum or pressure of up to 10 bar. The seals have a specially developed profile so that valve pressure causes them to expand radially to maintain optimum sealing contact with the valve bore; this is carefully controlled so that friction and thus wear are minimised, while response times are increased.
The B Series valve range offers compact dimensions and is designed for ease of fitting and use. For example direct body porting and integral mounting holes are standard, allowing the valves to be easily mounted, either individually or together on compact modular manifolds, which can be extended to accommodate changes in a machine’s control system. Additionally, manifolds can be DIN rail mounted and manifold bases are also available with built in flow controls, providing integrated cylinder speed control.
All of the valves in the range are compliant with the requirements for component reliability in accordance with EU Machinery Directive standards EN292-2 and EN983. In addition, they do not require lubrication, helping to reduce operating and maintenance costs still further.
As well as simplicity of installation, the B series has a wide range of solenoid options to suit general industrial automation, food processing applications and mobile applications requiring wide band voltage tolerances and low power consumption. The solenoid operators are fitted with an interface that accepts a 15 or 22 mm wide solenoid and Form C or Form B connectors, depending on model, and gives protection to IP65 when fitted with a standard cable plug. All are available with or without manual overrides.