background image

ELEKTROGAS – TECHNICAL MANUAL 

 8-12 

 

 

 
 

Ordering 

 

information

 

 
 

Tab.4 

 

Additional code for special voltages 

Designation (230VAC) 

600 mbar 

6 bar 

Connections 

110 VAC 

24 V AC/DC (

2

24 VDC-22W  12 VDC-12W (

3

12 VDC-22W 

EVRMNA0O 

EVRM6NA0O 

Rp 3/8 brass 

EVRMNA1O 

EVRM6NA1O 

Rp 1/2 brass 

EVRMNA2O 

EVRM6NA2O 

G 3/4 brass 

EVRMNA3O 

EVRM6NA3O 

G 1 brass 

EVRMNA0 

EVRM6NA0 

Rp 3/8 

EVRMNA1 

EVRM6NA1 

Rp 1/2 

EVRMNA2 

EVRM6NA2 

Rp 3/4 

EVRMNA3 

EVRM6NA3 

Rp 1 

EVRMNA35 

EVRM6NA35 

Rp 1¼ 

EVRMNA4 

EVRM6NA4 

Rp 1½ 

EVRMNA6 

EVRM6NA6 

Rp 2 

EVRMNA4F 

EVRM6NA4F 

DN 40 (

1

EVRMNA6F 

EVRM6NA6F 

DN 50 (

1

GW 

HW 

 

 

 

110 VAC 

 

24 VDC 

12 VDC 

 

EVRMNA7 

EVRM6NA7 

DN 65 

EVRMNA8 

EVRM6NA8 

DN 80 

EVRMNA9 

EVRM6NA9 

DN 100 

EVRMNA93 

EVRM6NA93 

DN 125 

EVRMNA95 

EVRM6NA95 

DN 150 

EVRMNA98 

DN 200 

(

1

) Optional kit  

(

2

) DC operation with impulse only 

(

3

) Provided with different mechanical parts (not interchangeable) 

 
 
 
 
The versions with inlet pressure p

1

 

 6 bar (600 kPa) may be order inserting the digit “6” in to 

the designation. 
Different voltage than 230V may be order adding to the standard designation the additional 
code shown above. Other optionals must be order with their ordering code. 
 
Example
 
   EVRM6NA3.B  for a valve with Rp1 connections, 110VAC, 6 bar 
 
 
 
 
Manufacturer reserves the right to update or make technical changes without prior notice. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for EVRM-6NA

Page 1: ...elektrogas com EVRM NA EVRM 6NA Safety solenoid valves for gas Manual reset Normally open DN10 DN200 EE167 0510...

Page 2: ...ed in the 1 2 and 3 families EN 437 Two range of operating pressure low pressure 0 600 mbar and medium pressure 0 6 bar The valves are normally not powered allowing a remarkable energy saving An incor...

Page 3: ...f the presence of gas the valve remains under power and does not allow reset When the causes for locking have been eliminated valve must be opened manually Fig 1 The 6NA versions are provided with a d...

Page 4: ...th Ex proof marking for use in Zone 2 according to 94 9 EC Directive ATEX Technical specifications Tab 1 Connections Gas threaded ISO 7 1 from Rp3 8 to Rp2 Flanged PN16 ISO 7005 from DN40 to DN200 Vol...

Page 5: ...6 9 5 85 96 138 165 0 8 Rp 1 16 12 0 85 96 138 165 0 8 Rp 11 4 16 20 0 120 153 170 203 1 6 Rp 11 2 16 26 0 120 153 170 203 1 6 Rp 2 16 40 0 106 156 175 213 1 9 DN 40 1 16 26 0 150 193 170 245 110 4x18...

Page 6: ...AIR GAS V k V Gas flow chart Pressure drop Fig 4 Formula of conversion from air to other gases Tab 3 15 C 1013 mbar dry Gas type Specific gravity Kg m GAS k 25 1 Air 1 25 1 00 Natural gas 0 80 1 25 T...

Page 7: ...ce with the characteristic Kvs value which is shown in table 2 The selection of the valve requires the calculation of the Kv under the operating conditions Considering only subcritical pressure drops...

Page 8: ...6F DN 50 1 B C GW H HW 110 VAC 24 VDC 12 VDC EVRMNA7 EVRM6NA7 DN 65 EVRMNA8 EVRM6NA8 DN 80 EVRMNA9 EVRM6NA9 DN 100 EVRMNA93 EVRM6NA93 DN 125 EVRMNA95 EVRM6NA95 DN 150 EVRMNA98 DN 200 B _ G H _ 1 Optio...

Page 9: ...EC and the certification has been issued by the notified body C S I Spa Viale Lombardia 20 I 20021 Bollate MI The following standards technical specifications have been fulfilled Electromagnetic Compa...

Page 10: ...move the end caps and make sure no foreign body is entered into the valve during handling THREADED MODELS Put sealing agent onto the pipe thread Avoid excessive quantities which could enter in the val...

Page 11: ...cording to printed designation Pull back the cable and insert the terminal block into the housing Screw back the gland nut make sure that the grommet is locked on the cable Insert the screw and gasket...

Page 12: ...ing If necessary replace them Remove the spring and blow it with compressed air Check the spring is corrosion free Clean the disc assembly with a clean cloth and compressed air Grease the rod O ring C...

Reviews: