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DVGW Certified Valves

General Specifications

Function
valves with DVGW-Certificate
Media
combustible gases according NPT 260, gaseous, liquid, gelatinous, highly viscous, pasty, contaminated, aggressive, liquid fuels
Body Materials
nickel plated brass, nickel plated steel
The materials refer to parts in contact with the media.
Seal Materials
NBR, PTFE, FPM, CR, EPDM, special seal materials
Options
special threads, special flanges, function NO, damping, limit switches (NAMUR), manual override, approvals, special voltage, circuit amplifier, mounting
Remark
The valves' technical design is based on media and application requirements. This can lead to deviations from the general specifications shown on the data sheet with regards to the design, sealing materials and characteristics.

Valve Types

MK / FK 15 DVGW

MK / FK 15 DVGW

Ports
MK threads NPT 3/8 - NPT 3/4
FK flanges ANSI 600
Function
NC
Pressure Range
0-600 psi
cv Value
5.5 GPM
Media
combustible gases according NPT 260
Flow Direction
A ⇒ B as marked
Switching Cycles
200 1/min
Switching Time [ms]
opening 80 closing 80
Media Temperature [°F]
DC: 5 to 176
AC: 5 to 176
Ambient Temp. [°F]
DC: 5 to 176
AC: 5 to 176
Weight [kg]
MK 3,8 FK 5,0
Nominal Voltage
UN 24 V DC, UN 230 V 40-60 Hz AC
Actuation
DC direct-current magnet
AC direct-current magnet with integrated rectifier
Protection
IP65
Energized Duty Rating
ED 100%
Connection
plug acc. DIN EN 175301-803 , form A, 4 positions x 90° / , wire diameter 6-8 mm

MK / FK 15 DVGW Data Sheet

General Operating Instructions

Certificate

MK 15 DVGW Drawing

FK 15 DVGW Drawing

Circuit Symbols

MK / FK 20 DVGW

MK / FK 20 DVGW

Ports
MK threads NPT 3/4 - NPT 11/4
FK flanges ANSI 600
Function
NC
Pressure Range
0-600 psi
cv Value
8.6 GPM
Media
combustible gases according NPT 260
Flow Direction
A ⇒ B as marked
Switching Cycles
150 1/min
Switching Time [ms]
opening 110 closing 110
Media Temperature [°F]
DC: 5 to 176
AC: 5 to 176
Ambient Temp. [°F]
DC: 5 to 176
AC: 5 to 176
Weight [kg]
MK 5,5 FK 7,5
Nominal Voltage
UN 24 V DC, UN 230 V 40-60 Hz AC
Actuation
DC direct-current magnet
AC direct-current magnet with integrated rectifier
Protection
IP65
Energized Duty Rating
ED 100%
Connection
plug acc. DIN EN 175301-803 , form A, 4 positions x 90° / , wire diameter 6-8 mm

MK / FK 20 DVGW Data Sheet

General Operating Instructions

Certificate

MK 20 DVGW Drawing

FK 20 DVGW Drawing

Circuit Symbols

MK / FK 25 DVGW

MK / FK 25 DVGW

Ports
MK threads NPT 1 - NPT 11/2
FK flanges ANSI 600
Function
NC
Pressure Range
0-600 psi
cv Value
12.9 GPM
Media
combustible gases according NPT 260
Flow Direction
A ⇒ B as marked
Switching Cycles
130 1/min
Switching Time [ms]
opening 130 closing 130
Media Temperature [°F]
DC: 5 to 176
AC: 5 to 176
Ambient Temp. [°F]
DC: 5 to 176
AC: 5 to 176
Weight [kg]
MK 8,0 FK 10,5
Nominal Voltage
UN 24 V DC, UN 230 V 40-60 Hz AC
Actuation
DC direct-current magnet
AC direct-current magnet with integrated rectifier
Protection
IP65
Energized Duty Rating
ED 100%
Connection
plug acc. DIN EN 175301-803 , form A, 4 positions x 90° / , wire diameter 6-8 mm

MK / FK 25 DVGW Data Sheet

General Operating Instructions

Certificate

MK 25 DVGW Drawing

FK 25 DVGW Drawing

Circuit Symbols