Dual Abrasive Resistant Balls (DARB)
Dual Abrasive Resistant Balls (DARB)
Dual manufactures a comprehensive range of abrasive resistant balls for check valves. All balls are manufactured to the highest international quality standards. Dual balls are manufactured in South Africa, using our own techniques and expertise.
The balls are molded with reinforced materials and are manufactured in sizes varying from 50mm to 1000mm.
DARB Features
Perfect sealing.
Abrasive resistance.
Minimum back pressure for tightness: 0.3 to 0.5 Bar, when installed in check valve.
Maintenance free.
High impact characteristics.
Silent, non-slam, reduces pipe hammer.
Fabricated inserts.
High mechanical strength.
Simple construction.
Stainless steel balls provide maximum hardness, toughness and dimensional strength.
Plastic Balls have very low moisture absorption.
Chemical resistant.
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SIZE RANGE: |
50mm – 1000mm Larger sizes on request. |
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PRESSURE RATING: |
0 to 100 Bar. |
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TYPES: |
High pressure, floating special weight balls. |
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WORKING TEMPERATURES: |
-10C to +120C. |
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BALL MATERIALS: |
Gum, EPDM, Butyl, Nylon, Neoprene, Stainless Steel, Teflon, HDPE, PTFE or Plastic. |
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HARDNESS: |
75 to 95A. |
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COLOUR: |
Natural and all colours. |
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BALL INSERT: |
Fabricated Steel or Cast Aluminium. |
Head Office
166 Rotterdam Road, Apex Industrial, Benoni, Gauteng, South Africa
Call Us
(+27) 11 422 – 4326/7