Open Mine Systems

Open Mine Systems

Mining valves are used to control the ores- eaching process, in mines of various materials. The Automatic valves replace the manual ones in numerous control applications, such as Pressure Reduction, Local Controller-Activated Start / Stop of the leaching, Remote Control, Pipelines Flushing etc. A wide range of control alternatives, enables the user a precise selection of the must- suitable valve for his specific control request.

FEATURES & ADVANTAGES

  • Simple, symmetric pattern
  • Structure materials resistant to strong acids used in the leaching process
  • Large water passages, high clogging resistance
  • Wide selection of control applications:  

– Pressure Reducing valves, maintaining constant pressure in the sprinklers or drippers laterals.  

– Electrically- activated valves- allowing remote, automatic control of start and stop of the      leaching periods.  

– Combination of control functions, pressure control and on / off command  

– Electronic controllers that set fixed timing for the leaching sequence and for laterals flushing.

UPVC VALVES – 95-96 SERIES

Features & Advantages:

  • ​Simple structure, easy maintenance 
  • Resistant Materials 
  • Solvent welding (glue-ing) connection to the pipeline
  • Sizes 3” to 6” (90-160 mm)
  • Extremely low energy losses 

Structure Materials:

  • Body –  uPVC 
  • Bonnet  – PPS 
  • Spring –  SST316 
  • Diaphragm –  ALD70*

* Special mixture of rubbers, developed by Dorot   to resist wide range of acids


View Product Info Sheet (PDF)

RUBBER-LINED, DIRECT-SEALING DIAPHRAGM VALVES, MODEL 77

With its simple and easy to maintain design, the Rubber-Lined, Direct-Sealing Diaphragm Valves –  Model 77 for the Mining Industry comes in a variety of structure materials resistant to strong acids that enable a precise match to the specific request on site.

Features & Advantages

  • Simple structure, easy maintenance
  • Large variety of offered sizes
  • High resistance to any acid used on site due special mixture of rubbers
  • Extremely low energy losses
  • Tailor-made materials structure that enables precise match to site specification and special requests

Technical Specifications

  • Sizes available from:  2” to 24” (50-600mm)
  • The valves can be used in high-pressure (up to 250m, 350psi) conditions.
  • Structure Materials:
    • Part Material Body – Cast iron (47), Ductile iron (67)*Bonnet – Cast iron (47), Ductile iron (67)*
    • Spring – SST316
    • Diaphragm – ALD70**
  • Pressure Range: 1 – 16 bar /  19 – 230 psi

(*other materials are available, such as stainless steel, upon request)

(** Special mixture of rubbers made to resist wide range of acid)


View Product Info Sheet (PDF)


NORMALLY-CLOSED VALVE, MODEL 60 ANC

Features & Advantages:

  • Highly resistant Polypropilene material
  • Sizes: 11/2” (40mm), angle patters
  • Natural Normally-closed structure
  • Pressure Range: 0.4 – 8 bar  / 7 – 115 psi
  • Structure Materials:
    • Body – Polypropilene
    • Bonnet – Polypropilene
    • Spring – SST316 Diaphragm EPDM


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DAV-C- AIR RELEASE & VACUUM BREAK VALVES, FOR CORROSIVE FLUID NETWORKS (SEA WATER AND MINING)

The Air Release & Vacuum Break Valves, for corrosive fluid networks (Sea Water and Mining) are designed to resist corrosion by various liquids in mining, desalinization plants and chemical industry.

Features & Advantages:

  • High resistance to corrosion caused by various liquids
  • Simple structure, easy maintenance
  • Large variety of offered sizes
  • Optimum aero-dynamic performance
  • Variety of Operation Modes:
    • 1st: Venting Air from a filling pipeline
    • 2nd: Vacuum Breaking (Air Intake) of a draining pipeline
    • 3rd: Release of dissolved air from a pressurized pipeline
  •  Custom-made for multiple applications

 

Technical Specifications:

  • Available sizes: 
    • For DAV-CS (High Capacity Combination and Kinetic Valves): 2” / 50mm to 10” / 250mm
    • For DAV-CH (Combination and Kinetic Valve): 3” / 80mm to 12” / 300mm
  • Pressure rating: PN16 (rated 230 psi), PN25 (360 psi) and PN40 (580 psi)
  • Minimal pressure for drip-tight sealing 0.2 bar
  • Temp. Range Operating:    0-60°C / 32-140°F
  • Storage:      -10-70°C / 15-160°F
  • Connections: ISO, ANSI, BS, JIS flanges, BSP, NPT threads (50mm valves only)


View Product Info Sheet (PDF)


DAV-C-SA – SURGE ARRESTING DEVICE FOR DAV VALVES

The Surge Arresting Device for DAV-C-SA valves automatically prevents water hammer pressure surges associated with air release valves operation and offers optimum performance due to its air outlet that can custom-made adjusted to surge analysis results.

Features & Advantages

  • Reliability: Simple, durable mechanism, fabricated from high grade materials.
  • Non-Stop Functionality: Can be serviced without having to put the air valve out of service.
  • Surge Arresting:  Automatically prevents water hammer pressure surges associated with air release valves operation
  • Optimum performance:  Air outlet can be adjusted according to surge analysis results, on site to a required aero-dynamic performance. The SA addition is assembled on user selected valves only (at local high elevated points). The flow through other valves remains unrestricted.
  • Simplicity – Can be easily assembled on any of DAV-C series air valves.

 

Technical Specifications:

  • Available sizes: 
    • DAV-CS-KA-SA (High Capacity Combination and Kinetic Valves): 2” /  50mm to 10” / 250mm
    • DAV-CH-KA-SA (Combination and Kinetic Valve): 3” / 80mm to 12” / 300mm
  • Pressure rating: PN16 (rated 230 psi), PN25 (360 psi) and PN40 (580 psi)
  • Minimal pressure for drip-tight sealing 0.2 bar
  • Temp. Range Operating: 0-60°C / 32-140°F
  • Storage: -10-70°C / 15-160°F
  • Connections: ISO, ANSI, BS, JIS flanges, BSP, NPT threads (50mm valves only)


View Product Info Sheet (PDF)