Yamatake ACTIVAL VY51X2J, Specifications & Instructions

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3 AB-6465
Specifications
Valve
Item Specification
Model Two-way valve with flanged connection
Body pressure rating JIS 20K (Max. pressure 1.96 MPa)
Nominal size (in inch) Cv
Max. pressure drop
(close-off ratings)
DN15 (1/2) 1.0 980 kPa
DN15 (1/2) 2.5 980 kPa
DN15 (1/2) 6.0 980 kPa
DN25 (1) 10 980 kPa
DN25 (1) 16 980 kPa
DN40 (1
1
/
2
) 25 980 kPa
DN40 (1
1
/
2
) 40 980 kPa
DN50 (2) 65 980 kPa
DN65 (2
1
/
2
) 95 980 kPa
Size, Cv
Max. pressure drop
DN80 (3) 125 686 kPa
Materials Body: Ductile cast iron (JIS FCD450)
Plug, stem: Stainless steel (equivalent to JIS SCS)
Seat ring: Heat-resistant PTFE
Gland packing: Inorganic fiber
Gasket:
Non-asbestos joint sheet
Piping connections JIS 20K flanged connection: Large raised face (RF)
Allowable fluid temperature 0
°
C to 175
°
C
Flow characteristics Equal percentage
Rangeability 50 : 1
Seat leakage 0.01 % or less of rated Cv value (0.0006 Cv or less for DN15 model)
Paint of body Gray (equivalent to Munsell 5B 4/1)
Applicable fluids Chilled/hot water or hot water (in high temperature)
Installation orientation
Installable in any position ranging from upright (with the mounted actuator vertically above the
valve) to sideways
Installed actuator Integrated with the valve