The Hydrocore™ timer operated valve opens or closes the water and compressed air lines to allow for mining operations to resume, on a predetermined weekly timing schedule. The valve can be actuated by various means: hydraulically, pneumatically or electrically.
The implementation of the timer activated valves has a three month payback period when applied as air/water isolating valves in the gold and platinum mining industries.
Preventing mud rush
Automatic isolation of the water lines in the workings prevents the occurrence of mud rush in the ore-passes, which is typical to pipe bursts during blast shifts or off-mining shifts.
Principles of Operation
The control system consists of two timer switches, operating as follows:
START - Within Normal Shift
Pressing the START button causes both valves to open from this moment to the end of the shift as programmed by timer T1.
START - Out of Normal Shift
Pressing the START button causes both valves to open from this moment to a fixed duration as pre-programmed by timer T2.
STOP - At any time
Pressing the STOP button causes both valves to close at any time
FLOW COEFFICIENTS & FLOW RATES
Sizes 50NB ~ 100NB: 250 bar (max)
Sizes 150NB ~ 300NB: 160 bar (max)
Up to 85ºC with standard seals.
Liquid and gas with low content of suspended solids.
2” (50 NB) to 16” (400 NB)
SABS 1123, BS4504, BS10, ASME B16.34, ANSI B16.5
pH levels & chlorides
Parts of the valve are made from stainless steel and can withstand a low level of chlorides.
The valve can be installed in any position
Seat Leakage - B16.104 class III, IV, V or VI, depends on valve type and application.
Cv/Kv: 50 | Flow (max): 9 ℓ/sec
Cv/Kv: 97 | Flow (max): 25 ℓ/sec
Cv/Kv: 132 | Flow (max): 38 ℓ/sec
Cv/Kv: 325 | Flow (max): 117 ℓ/sec
Cv/Kv: 648 | Flow (max): 152 ℓ/sec
Cv/Kv: 871 | Flow (max): 233 ℓ/sec
Cv/Kv: 1500 | Flow (max): 337 ℓ/sec
DIMENSIONS AND WEIGHTS
203mm / 16kg
267mm / 23kg
292mm / 31kg
356mm / 109kg
495mm / 245kg
622mm / 465kg
699mm / 705kg
267mm / 18kg
318mm / 28kg
356mm / 41kg
445mm / 131kg
559mm / 275kg
622mm / 498kg
711mm / 755kg
292mm / 19kg
356mm / 31kg
432mm / 53kg
559mm / 162kg
660mm / 316kg
787mm / 585kg
838mm / 839kg
368mm / 33kg
381mm / 41kg
457mm / 64kg
610mm / 187kg
737mm / 358kg
838mm / 636kg
965mm / 954kg
368mm / 33kg
470mm / 51kg
546mm / TBD
705mm / TBD
832mm / TBD
991mm / TBD
1130mm / TBD