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ISO COUPLINGS
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ISO.A SERIES
PULL BREAK HYDRAULIC COUPLINGS
Va" - 2" Poppet Valve Types to ISO 7241 Séries A
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INTRODUCTION
Holmbury ISO.A Séries couplings are the ideal choice where a tough, durable product of superior quality is required. They are perfectly suited to industrial and agricultural applications. A poppet valve is used to minimise the pressure drop characteristics and provide a positive sealing arrangement.
COMPARISONS
In comparison to ISO.B couplings the ISO.A Series are:
1. Smaller.
2. Easier to connect and release. FEATURES
★ Positive, quick connection ensured by the snap together locking ball system.
★ When connected the male and female halves can rotate, even under pressure, thus avoiding any torsional stress in the flexible hoses.
★ Designed to withstand high pressure peaks and pulses.
★ Poppet valves have balanced springs and calibrated oil flow passages to minimise the pressure drop.
★ Poppet valve seals have shockproof protective edges.
MATERIALS
Zinc plated, heat treated carbon steel. Nitrile 'O' ring seals are fitted as standard. VITON seals are available on request.
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ISO.A SERIES COUPLINGS FLOW GRAPH
Q L/min 2500 2000
1500
1000 900 800 700 600 500
 3 2.5
2 1.5
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0.1 0.15 0.2 0.25 0.3 0.4 0.5 0.6 0.8 HYDRAULIC OIL VISCOSITY 30 cSt
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1.5 2 2.5 3
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4 5 6 7 8 9 10 AP BARS
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Tel : 01732 357333 Fax; 01732 357666
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