June 2019

HYDRAULICS Manifold valves for improved ergonomics and reliability Emerson has introduced a new manifold product family for its Rosemount pressure transmitters. Manifolds shut off or equalise pressure at the transmitter and provide the critical mounting mechanisms required in many installations. The Rosemount R305 Integral Manifolds and Rosemount R306 In-line Manifolds have been designed to offer significant user improvements on these basic functions. The most important improvement for both manifolds is the new Pressure-Lock Valve design which simplifies high- pressure operation, increases safety and enhances reliability. New features include: Two-piece stem does not rotate in the seat, providing solid closure with minimal wear Easy to turn while delivering positive shut-off Adjustable packing nut simplifies valve maintenance Back seating prevents blowouts for increased user safety Stem and bonnet threads are fully isolated from the process fluid to minimise potential corrosion Modular packing ensures only the stem and body are exposed to the process fluid Larger internal passages to enhance reliability The Rosemount R305 is designed for both differential or gauge pressure applications and mounts directly to any Rosemount Coplanar Transmitter for a complete solution. This reduces the number of potential leak points by 50% compared with traditional biplanar transmitter set-ups. Two-, three- and five- valve configurations are available. The Rosemount R306 is designed for in-line pressure transmitters for gauge or absolute pressure applications. When a Rosemount R305 or R306 is selected with a transmitter, the components are fully assembled, and high-pressure leak-tested at the factory. This allows the transmitter Accurate and reliable, pulse-free pumping of liquids is essential in many laboratories and critical low flow applications, and a new combined drive and control module provides users with a simple touch control option of controlling miniature, positive displacement pumps. The MZR Touch Control module introduced by HNPM Mikrosysteme complements the six series of MZR micro-annular gear pumps which are available through UK pump specialists Michael Smith Engineers. The Touch Control Module features a simple and clear graphical user interface which supplements the present control of MZR dosing pumps via a laptop or PC and can be used for most MZR pump sizes and series with low to medium power drives. This compact, yet robust module is constructed from high quality diecast aluminium measuring just 147mm (L) x 141mm (W) x 37mm (H) and enables easy and versatile operation of micro-annular gear pumps. Users can select dosage volumes ranging from 0.25µl and flow rate ranges of 1µl / min up to 288 ml / min. A range of accessories is also available which enables users to adapt the controller and pump performance to suit specific application requirements. For example, a holder for MZR Touch Control and low-pressure pump assemblies, pump assemblies with filters and valves, a manual switch which can be operated by hand or foot, an input pen and a stand clamp. The Touch Control Module further enhances the performance and adaptability of MZR micro-annular gear pumps which are ideally suited to handling a variety of different liquid media and viscosities, delivering accurate, pulse-free pumping. Applications include challenging roles in chemical, medical and pharmaceutical processing, biotechnology. Ink and paint dosing, portable power sources, fuel cells and aerospace. ENDS www.michael-smith-engineers.co.uk/products/hnpm/controllers 28 HYDRAULICS & PNEUMATICS June 2019 www.hpmag.co.uk to be installed right out of the box, saving time and money. “Pressure transmitter manifolds often don’t get much attention, but users understand how vital they are for effective operation,” said Scott Nelson, vice president and general manager for Emerson’s Rosemount pressure products. “Emerson takes all these elements seriously and introduced this improved offering to make this critical operation easier and safer for technicians who work with these products every day.” www.Emerson.com/RosemountR306 The new Rosemount manifold product family offers simplified operation, increased safety and enhanced reliability New control option for MZR micro-annular gear pumps