UV3-5, 3-5S & 3-5Z LOW FLOW BACK PRESSURE REGULATOR

UV3-5, 3-5S & 3-5Z LOW FLOW BACK PRESSURE REGULATOR

Back Pressure Regulators

Mankenberg Industrial Valves

Self-acting back pressure regulators are simple control valves offering accurate control while being easy to install and maintain. They control the pressure upstream of the valve without requiring pneumatic or electrical control elements.

The UV 3.5, UV 3.5S and UV 3.5Z backpressure regulators are spring-loaded diaphragm-controlled proportional control valves for small volumes. They are manufactured from deep-drawn stainless steel featuring excellent corrosion resistance. The valve cone can be fitted with a metallic or soft seal.

The spring module comprising spring cap, spring, adjusting screw, diaphragm and internal components, is connected to the valve body only by means of a clamp ring and two bolts. Changing the diaphragm or the complete spring assembly for a different control pressure range is extremely simple and does not call for special tools. The same applies to servicing and maintenance.

Changing the control pressure setting does not affect the height of the valve (non rising adjusting screw).

The inlet pressure to be controlled is balanced across the valve seat by the force of the valve spring (set pressure). If the inlet pressure rises above the set pressure, the valve opens. With decreasing inlet pressure the valve control orifice reduces, when the pipeline is depressurised, the valve is closed. Rotating the adjusting screw clockwise increases the inlet pressure.

The UV 3.5S and UV 3.5Z overflow valves require a pilot line (to be installed on-site).

    These valves are no shut-off elements ensuring a tight closing of the valve. In accordance with DIN EN 60534-4 and/or ANSI FCI 70-2 they may feature a leakage rate in closed position in compliance with the leakage classes III or V, optional IV:
  • Leakage class III (metal sealing cone) = 0.1 % Kvs value
  • Leakage class IV (PTFE seal cone) = 0.01 % Kvs value
  • Leakage class V (soft seal cone) = 1.8 x 10-5 x ?p x D* [l/h] *D=seat diameter






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Why choose Boiswood for your UV3-5, 3-5S & 3-5Z LOW FLOW BACK PRESSURE REGULATOR

Fast Turnaround
Fast Turnaround
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Our local stocks allow us to quickly respond to requirements for regulators. Boiswood can evaluate and repair regulators the same day they are returned and despatch back out on a next-day delivery service.
Local Technical Support
Local Technical Support
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Boiswood offer a technical helpline from our HQ as well as having a “man on the ground” for on-site support whenever and wherever this is required.
In-House Repair Centre
In-House Repair Centre
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We can offer manufacturer certified in-house evaluation, repair, testing and assembly of GO regulators from within our Boiswood workshop.
Training Services
Training Services
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We offer a range of educational classes and training seminars that can be delivered from Boiswood HQ or on-site. We can deliver a bespoke seminar tailored for your needs.