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DF..B..NI / DF..C.., 2-Way Flanged Linear Valves, PN16/PN25

DF..B..NI / DF..C.., 2-Way Flanged Linear Valves, PN16/PN25

Product Description

These single-seated valves are used for modulating control of hot/chilled water or steam in heating, ventilating and air conditioning systems. They are designed especially for use in high differential pressure applications (e.g. district heating) The valves can be operated by linear actuators series ML64... and ML74...

Technical Properties

Materials

Stem made of stainless steel, valve body made of nodular iron (GGG40.3), flanged per ISO 7005-2

Action

Stem down to close

Features
  • Pressure-balanced plug
  • Nodular iron body with flanged end connections
  • Low seat leakage rate
  • Metal-to-metal seating for long life span
  • Self-adjusting packing
  • Accurate positioning to ensure state-of-the-art temperature control
  • Direct-coupled electric for easy mounting

Products

Product Type Valve type
Medium type
Media temp.
Flow char.
DN size
Kvs value
Stroke
Nominal pressure
Port connection
2-Way Linear Valve - Flanged DF..B..NI

DF150B360NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 150 mm 150 38 mm PN16 flanges ISO7005

DF15B0.4NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 0,4 20 mm PN16 flanges ISO7005

DF15B0.63NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 0,63 20 mm PN16 flanges ISO7005

DF15B1.0NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 1 20 mm PN16 flanges ISO7005

DF15B1.6NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 1,6 20 mm PN16 flanges ISO7005

DF15B2.5NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 2,5 20 mm PN16 flanges ISO7005

DF15B4.0NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 4 20 mm PN16 flanges ISO7005

DF20B6.3NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 20 mm 6,3 20 mm PN16 flanges ISO7005

DF25B10NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 25 mm 10 20 mm PN16 flanges ISO7005

DF32B16NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 32 mm 16 20 mm PN16 flanges ISO7005

DF40B25NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 40 mm 25 20 mm PN16 flanges ISO7005

DF50B40NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 50 mm 40 20 mm PN16 flanges ISO7005

DF65B63NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 65 mm 63 20 mm PN16 flanges ISO7005

DF80B100NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 80 mm 100 20 mm PN16 flanges ISO7005

DF100B160NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 100 mm 160 38 mm PN16 flanges ISO7005

DF125B250NI
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 125 mm 250 38 mm PN16 flanges ISO7005
2-Way Linear Valve - Flanged DF..C..

DF15C0.4
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 0,4 20 mm PN25 flanges ISO7005

DF15C0.63
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 0,63 20 mm PN25 flanges ISO7005

DF15C1.0
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 1 20 mm PN25 flanges ISO7005

DF15C1.6
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 1,6 20 mm PN25 flanges ISO7005

DF15C2.5
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 2,5 20 mm PN25 flanges ISO7005

DF15C4.0
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 15 mm 4 20 mm PN25 flanges ISO7005

DF20C6.3
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 20 mm 6,3 20 mm PN25 flanges ISO7005

DF25C10
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 25 mm 10 20 mm PN25 flanges ISO7005

DF32C16
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 32 mm 16 20 mm PN25 flanges ISO7005

DF40C25
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 40 mm 25 20 mm PN25 flanges ISO7005

DF50C40
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 50 mm 40 20 mm PN25 flanges ISO7005

DF65C63
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 65 mm 63 20 mm PN25 flanges ISO7005

DF80C100
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 80 mm 100 20 mm PN25 flanges ISO7005

DF100C160
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 100 mm 160 38 mm PN25 flanges ISO7005

DF125C250
2-way linear valve, pressure balanced water or water-glycol mixture according to VDI 2035 2 ... 220 oC mod.equal% 125 mm 250 38 mm PN25 flanges ISO7005

Accessories and replacement parts

Accessories

Image Description Product Type Downloads
Actuator: 3-point / floating, 20 mm effective stroke, 600N, 24 V AC, 60 s ML6420A3007  
Actuator: 3-point / floating, 20 mm effective stroke, 600N, 24 V AC, 30 s ML6420A3023  
Actuator: 3-point / floating, 20 mm effective stroke, 600N, 230 V AC, 60 s ML6420A3015  
Actuator: 3-point / floating, 20 mm effective stroke, 600N, 230 V AC, 30 s ML6420A3031  
Actuator modulating 0/2 ... 10 V, 20 mm effective stroke, 600N, 24 V AC, 60 s ML7420A6009  
Actuator modulating 0/2 ... 10 V, 20 mm effective stroke, 600N, 24 V AC, 30 s ML7420A6017  
Actuator 3-point / floating (spring return), 20 mm effective stroke, 600N, spring return direct, 24V AC, 108 s ML6425A3006  
Actuator 3-point / floating (spring return), 20 mm effective stroke, 600N, spring return reverse,24 V AC, 108 s ML6425B3005  
Actuator 3-point / floating (spring return), 20 mm effective stroke, 600N, spring return direct, 230V AC, 108 s ML6425A3014  
Actuator 3-point / floating (spring return), 20 mm effective stroke, 600N, spring return reverse,230 V AC, 108 s ML6425B3021  
Actuator modulating 0/2 ... 10 V (spring return), 20 mm effective stroke, 600N, 24 V AC, 108 s ML7425A6008  
Actuator modulating 0/2 ... 10 V (spring return), 20 mm effective stroke, 600N, spring return reverse, 24 V AC, 108 s ML7425B6007  
Actuator 3-point / floating, 38 mm effective stroke, 1800N, 24 V AC, 114 s ML6421A3005  
Actuator 3-point / floating, 20 mm effective stroke, 1800N, 230 V AC, 114 s ML6421A3013  
Actuator 3-point / floating, 38 mm effective stroke, 1800N, 24 V AC, 210 s ML6421B3004  
Actuator 3-point / floating, 38 mm effective stroke, 1800N, 230 V AC, 210 s ML6421B3012  
Actuator modulating 0/2 ... 10 V, 20 mm effective stroke, 1800N, 24 V AC, 114 s ML7421A3004  
Actuator modulating 0/2 ... 10 V, 38 mm effective stroke, 1800N, 24 V AC, 210 s ML7421B3003  

Spare Parts

Image Description Product Type Downloads
Stem button assy, DN40 - DN80 ASV-SBA-2  
Packing nut, DN100 - DN150 ASV-PN-6  
Packing nut, DN15 - DN65 ASV-PN-5  
Packing, DN100/150 ASV-PAC-6  
Packing, DN15 - DN65 ASV-PAC-5  
Stem button assy, DN80 - DN100 ASV-SBA-4  
Body gasket, DN40 - DN65 ASV-BG-2  
Body gasket, DN80 - DN100 ASV-BG-3  
Plug assembly (incl. body gasket and seat ring), DN40, kvs 25 ASV-PA-7-25  
Plug assembly (incl. body gasket and seat ring), DN50, kvs 40 ASV-PA-7-40  
Plug assembly (incl. body gasket and seat ring), DN65, kvs 63 ASV-PA-7-63  
Plug assembly (incl. body gasket and seat ring), DN80, kvs 100 ASV-PA-7-100  
Plug assembly (incl. body gasket and seat ring), DN100, kvs 160 ASV-PA-7-160  
Seat ring DN65, kvs 63 ASV-SR-2  
Seat ring DN80, kvs 100 ASV-SR-1