• HOPKINSONS® UNIFLOW SLIDE VALVE horizontal view (2)
  • HOPKINSONS® UNIFLOW SLIDE VALVE left side view
  • HOPKINSONS® UNIFLOW SLIDE VALVE horizontal view (1)
  • HOPKINSONS® UNIFLOW SLIDE VALVE right side view
  • HOPKINSONS® UNIFLOW SLIDE VALVE top view
  • HOPKINSONS® UNIFLOW SLIDE VALVE left angled view

Hopkinsons®

Uniflow Slide Valve

The Hopkinsons® Uniflow Slide Valves are specially designed for one way isolation and blowdown duties where there is no possibility of reversal flow.

The Hopkinsons® Uniflow Slide Gate Valve has been used for many years on drain, blow-down, and other auxiliary services, especially in medium and high pressure installations. It is manufactured in sizes up to and including 1 1/2 inch bore with flange or butt weld connections according to temperature and pressure requirements. As the name implies, the design is for one-way flow only and when there is any possibility of a reverse flow, it can be used in series with a non-return valve fitted at the outlet.

The Hopkinsons® Uniflow valve is an adoption of the parallel slide valve principle using only one disc, which slides over the face of the seat, where it is firmly held by fluid pressure in normal working conditions, and by a light spring when not under pressure. The valve is fully opened or closed by a half turn of the handle or hand-wheel. To prevent rotation beyond these limits, stops are incorporated in the index plate. This plate is large, clearly marked, and easy to read and can be engraved to suit foreign language requirements. No lubrication is required with this type of valve. Maintenance and the fitting of replacement parts are easily carried out as the valve can be easily dismantled without the aid of special equipment. In addition, there are no welded joints to be broken in order to gain access to the internal components.

DESIGN STANDARD

  • ASME B16.34.
  • Alternatively, valves can be supplied to other national standards
  • ASME section IIIRCC-M

SIZE RANGE & DIMENSIONS

  • 10 – 50 mm (3/8 – 2 inches)

TEMPERATURE RANGE

  • 29°C – 550C (-20°F – 1022°F)

DESIGN RATINGS

  • ASME Class 2500 to 3100

MATERIALS

  • ASTM A105
  • ASTM A182-F22

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