Nymet valves

World Leader in Design and Production of Customised OEM Valves

Solenoid Valve 16 : SERIES R 3/4” BSP Inlet (Male) - 3/4” BSP Outlet (Male) High Flow

Detailed Technical Specifications. Please click onto a category from the vertical menu to view details

  • Functional Requirements
  • Ambient Conditions
  • Inlet and Outlet Configurations
  • Markings
  • Valve Performance
  • Electrical
  • Pressure Loss V's Flow Rate

Functional Requirements

  • Standard piping configurations are made to the inlet of the valve by connecting via the 3/4” BSP /NPT male thread connection. The piping connections to the outlet of the valve are made via a 3/4" BSP /NPT female thread connection. This product has been designed to meet all requirements enabling it to be connected to a mains water supply provided it meets the Hydraulic Performance Criteria stated in this specification.
  • For best performance especially at low pressures, the valve should be mounted in a horizontal position with the solenoid standing in an upright position.
  • Standard electrical connections are made through the following options
    • via the two 6.3mm tabs protruding from the valve. It is advisable to ensure that the electrical receptacles connecting the tabs are insulated.
    • Though single or double insulated leads. The leads are 0.75mm 2 tin plated conductors.
    • Standard lead length is 200mm, however any specific customer requirement can be met.
    • Through DIN 43650 Form A / ISO 4400, EN175301 – 803:2000 specification

Ambient Conditions

The valve will operate correctly within the following temperature conditions;

  • Ambient temperature: 2° C to 60°
  • Relative humidity : 0% to 100%
  • Temperature of water: 2° C to 80° C

Inlet and Outlet Configurations

Inlet
3/4” BSP / NPT thread Male (AS1722)
Outlet
3/4" BSP / NPT thread FEMALE (AS1722)

Markings

The following are clearly visible

  • The manufacturers name
  • Model type number
  • Nominal voltage, frequency, and power rating
  • Date of manufacture Code
  • Direction of flow arrow

Valve Performance

Resistance to bursting pressure

Minimum static bursting pressure > 6.5 Mpa (65 bar), reached through a gradual pressure increase spread over 20 seconds starting from atmospheric pressure.

Resistance to external pressure peaks ( water hammer peaks)

The valve will withstand 100 cycles of 5.0 Mpa transient peaks (peak width of 200ms)

 Strength of coupling thread

With a minimum of 5 full threads engaged, the inlet and outlet coupling threads do not strip or break when subjected to a tightening torque of 30Nm.

Potable water contact

All non-metallic materials in contact with water have potable water certification to  AS4020, and/or BS6920 parts 1&2, and/or current approvals with FDA & WRC.

All metallic materials in contact with water, comply with AS4020, or contain not more than 4.5% lead (0.1% lead for solders) and 0.05% cadmium.

Corrosion resistance of stainless steels

The stainless steels pass the salt spray fog test according to ASTM B 117 salt spray fog test. Stay time 100 hours. After having been dried in ambient temperatures, there are no rust spots present. A small yellow discolouration is acceptable.

 Solenoid resistance to fire

Solenoid coil former and encapsulant are rated to UL94 – V0 and/or Glow wire-        
IEC 695-2-1, 960° C

Resistance to arc tracking / earth leakage

Solenoid assemblies are flash tested to 3.3 – 3.5kV ac, 50 Hz between earthed parts and live parts of opposite polarity.

Operating pressure range

The valve operates correctly between 20 Kpa and 1250kPa (0.02 – 12.5 bar), at the inlet of the valve.
The pressure is regulated by the available energy of the solenoid coil to lift the internal plunger mechanism.

 Opening pressure drop

The valve is designed to comply with IEC730-2-8 clause 18.101.3

 Operating Pressure Rise (Water Hammer Peak)

Static Pressure ranges = 20 kPa to 1250kPa
Supply pipe velocity range =1.2 m/s to 6.5 m/s
Immediately after closure, the pressure peak is not to exceed 115% of the initial static pressure condition.

 Opening Response Time

Flow established within 0.5 sec of power application

 Closing Response Time

Within 0.5 sec after power is removed

Leaking under pressure

Max seepage admitted in the whole of the pressure range is 10ml/12 Hours

 Abnormal pressure conditions

In certain installations there is the possibility of trapped excess pressure in the line between the valve inlet and supply inlet. This condition may arise when other valves or taps shut off and cause transient high pressure peaks through out the plumbing system.

The valve will open in the following adverse condition:
Rated voltage      -10% 
Coil temperature = 25 ± 5° C prior to power on
Trapped pressure released = up to 2000kPa (20 bar)

Electrical

Voltage

Voltage
Tolerance
%

Frequency
Hz

Power
Consumption
VA

Holding
Curren
mA

Inrush
Current
mA

Ambient
Temp
°C

Water
Temp
°C

Duty Cycle
min on /
min off

240Vac

+10 / -10

50

8

33

42

60

60

continuous

30

80

continuous

60

80

continuous

Voltage

Voltage
Tolerance
%

Frequency
Hz

Power
Consumption
VA

Holding
Curren
mA

Inrush
Current
mA

Ambient
Temp
°C

Water
Temp
°C

Duty Cycle
min on /
min off

120Vac

+10 / -10

60

8

66

142

60

60

continuous

30

80

continuous

60

80

continuous

Voltage

Voltage
Tolerance
%

Frequency
Hz

Power
Consumption
VA

Holding
Curren
mA

Inrush
Current
mA

Ambient
Temp
°C

Water
Temp
°C

Duty Cycle
min on /
min off

24Vac

+10 / -10

50

8

260

320

60

60

continuous

30

80

continuous

60

80

continuous

Voltage

Voltage
Tolerance
%

Frequency
Hz

Power
Consumption
VA

Holding
Curren
mA

Inrush
Current
mA

Ambient
Temp
°C

Water
Temp
°C

Duty Cycle
min on /
min off

12Vdc

+10 / -10

-

8

600

600

60

60

continuous

30

80

continuous

60

80

continuous

Voltage

Voltage
Tolerance
%

Frequency
Hz

Power
Consumption
VA

Holding
Curren
mA

Inrush
Current
mA

Ambient
Temp
°C

Water
Temp
°C

Duty Cycle
min on /
min off

9VDc

Latching

-3V / +3V

-

11

1200

1200

60

60

continuous

30

80

continuous

60

80

continuous

Pressure Loss V's Flow Rate

Pressure Loss V's Flow Rate