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POSR-2 PRESSURE REDUCING REGULATOR – PILOT OPERATED

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The Model POSR-2 is a pilot operated regulator primarily for use with steam. The external pilot valve is supplied from a main valve body tapped connection.

Handles pressure drops up to 200 psi (13.8 Bar) with adjust able outlet pressures between 5 and 150 psig (.34 and 10.3 Barg).

Hardened pilot and main valve trim for long life. The pilot uses a bellows as a friction – less seal for the pilot valve plug.

It was incorporated to insure that the pilot maintains its sensitivity and smooth operation in older steam systems that are chemically treated and systems that are used intermittently.

Prevents common “sticking” of pilot valve. Four pilot range springs provide high sensitivity and contribute to the valve’s excellent stability.

Ductile Iron or cast Steel. A 1/4″ (DN8) NPT sensing line and the valve body are the only connections required.

Used on stills, cookers, dryers, presses, pasteurizers, purifiers, sterilizers, mangles, washers, rendering machines, bleachers, vulcanizers, oil heaters, molding machines, steam jacketed equipment, kilns, retorts, heat exchangers, paper and board machines, steam driven auxiliaries, blowers, pumps and centrifuges.

Sizes: 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 3″ and 4″ (DN15, 20, 25, 32, 40, 50, 80 and 100).

  • Specifications
  • Technical Data
  • Advantages
  • Industries
  • Applications
  • Contact

Specifications

Operating Parameters:

 

  • Flows to 565 m³/h (2500 gpm)
  • Heads to 110 m (350 ft)
  • Pressures to 17 bar (250 psi)
  • Temperatures from -30°C (-20°F) to 90°C (200°F)

 

Shaft Metallurgy Options:

 

  • 316 SS
  • Alloy 20
  • Hastelloy
  • Titanium

 

Features:

 

  • Full basket strainer
  • NEMA in-line motor
  • Fiberglass mounting plate
  • Tapered “Polygon” impeller drive
  • “Pull-out” bearing retainers
  • Level controls

 

Options:

 

  • Simplex and duplex pit covers
  • Float switches
  • Particulate separators
  • Non-metallic lubrication lines
  • Tailpipe

Technical Data

  • Engineered Polymer Composite Construction offers cost-effective corrosion-resistance, is lightweight, non-galling, non-sparking, and non-conductive.
  • Unitized Case with Integrally Molded Flanges at the suction and discharge nozzles, fully gusseted for structural soundness.
  • Externally Adjustable, Semi-Open Impeller provides consistently high efficiencies and minimizes maintenance.
  • Shaft/Bearing System operates below the first critical speed for less shaft whip and longer bearing life.
  • Bearings can be lubricated by external flush or self-lubricated by the pump fluid.
  • Single-Piece Column is lightweight, filament-wound, reinforced fiberglass composite for strength and rigidity.

Advantages

  • Lightweight and corrosion-resistant due to engineered polymer composite construction.
  • High efficiency and minimal maintenance with externally adjustable impeller.
  • Long bearing life with low shaft whip and flexible lubrication options.
  • Robust construction with unitized case and reinforced single-piece column.

Industries

  • Leaching Acid
  • Chemical and Liquor
  • Caustic and Chlor-Alkali
  • Bleach Chemicals
  • Auxiliary
  • Acid Transfer
  • OEM
  • Water Treatment
  • Water Supply and Distribution
  • Wastewater Collection and Treatment
  • Polymers
  • Plating, Galvanizing and Other Coatings
  • Pharmaceuticals
  • Automotive and Aircraft

Applications

  • Corrosive Services
  • General Purpose
  • Water Treatment
  • Pulp and Paper
  • Chemical Processing
  • Utility
  • Metal and Steel Industry
  • Pollution Control
  • Plating

Contact Us

Contact our Pump Specialist Team

  • Phil Soltan (External) – mob: 086 185 3782
  • Adrian McSweeney – tel: 021 461 7212
  • Paul-Fox Morris – tel: 021 461 7231
  • Una Long (Pump & Service Support) – tel: 021 431 7200
  • Tel: 021 461 7200

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