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The DelVal Series 50 (wafer body) and Series 52 (lug body) Butterfly Valves have been developed with extensive application, design and manufacturing expertise. These products are produced by employing modern manufacturing practices under a robust quality assurance system. These practices ensure consistent product quality and dependable performance.
Unit of Measure

Specifications

Valve Size

 N/A DN500 20 in

Description

 N/A 20" Under Cut Butterfly Valve w/Aroxy Coated Ductile Iron Disc, Cast Iron Body, EPDM Seat, and 410 S.S. Stem
Dimension B1 N/A 5 in127 mm

Dimension E

 N/A 17.24 in438 mm

Top Plate Drilling

 N/A F16

Ø G

 N/A 1.97 in50 mm

Dimension H

 N/A 2.5 in64 mm

Dimension J

 N/A 0.39 x 0.47 in10 x 12 mm

Weight

 N/A 271.0 lb123 kg

Manufacturer

 N/A DelTech Controls, L.L.C.

Installation

N/A

    Valves up to size 12” can be supplied with lever handles for manual operation. Optional accessories for hand-lever operation can be provided for various flow control requirements. Pad locking can also be provided for preventing unauthorized operation.

     

     

     

     

    Valves up to size 24” can be direct mounted with gear operators for manual operation. Gear operators can also be attached with chainwheel operators for opening or closing valves located on pipelines at high elevations.

     

     

     

     

     

    All valves can be direct mounted with pneumatic actuators or electric actuators and accessories for complete automation options such as fail open/close & positioner controlled. Valves can be mounted with manual overrides.
  • 1 Face to Face dimension "B", generally conforming to API 609/BS EN 558-1 / ISO 5752