ANGLE SEAT VALVE / PISTON VALVE 1/2" ASCO E290A393

06/06/2022
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ANGLE SEAT VALVE / PISTON VALVE 1/2" ASCO E290A393
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* NORMALLY CLOSE - FLUID ENTRY UNDER THE DISC (1-->2)
* RECOMMENDED FOR RAPID CYCLING STEAM APPLICATION
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FEATURES
* High flow due to angled seat design
* Anti-waterhammer design (fluid entry under the disc)
* Vacuum operation up to 10-2 mbar
* Wide range of piston-type operators (32 - 50- 63 - 90 -125 mm dia.) rotatable through 360°, for maximum performance at different minimum pilot pressures
* High performance, maintenance-free stuffing box
* The valves satisfy Pressure Equipment Directive 97/23/EC, category 1 (DN > 25) or article 3.3 (DN ≤ 25)
• The valves in conformity with IEC 61508 Standard (2010 route 2H version) certified with integrity levels: SIL 2 for HFT = 0
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SPECIFICATION
Function : 2/2 NC FLUID ENTRY UNDER THE DISC (1-->2)
Pipe Size : G1/2
Operating Pressure Differential
* Air : 0 ~ 10bar
* Steam : 0 ~ 10bar
Flow Coefficient KV : 4.9 m3/h
Flow Coefficient KV : 82 l/min
Orifice Size : 15mm
Media : Corrosive Fluids, Air, Gas, Water, Steam, Oil
Operator Diameter : 50mm
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Pilot Pressure : 4~10bar
Maximum allowable pressure : 16 bar
Ambient temperature range : -10°C to +60°C
Maximum viscosity : 600 cSt (mm2/s)
Pilot fluid : Filtered air or water
Max. pilot pressure : 10 bar
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MATERIAL
Valve body : AISI 316L
Stuffing box housing : AISI 316L
Stem : Stainless steel
Disc : Stainless steel
Stuffing box packing : PTFE chevrons
Wiper seal : FPM
Disc seal : PTFE
Valve body seal : PTFE
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Manufacture ASCO JOUCOMATIC