The housing of water valves from Parker are made of brass and can have NBR or Viton membrane and pilot sealing. The Parker Lucifer valves need a minimum inlet pressure of 0.3bar and the maximum differential pressure is 10 or 16 bar. The Parker Scem ranges are equipped with NBR or Viton membrane and their pressure range is 0.1...20 bar (up to 1") or 0.1... 10 bar at higher sizes (from 5/4" up to 3"). Both ranges have normally closed (NC) and normally open (NO) versions.
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| 321K series |
 DATASHEET
|
| nominal sizes | G1/4"-1" |
| pressure range | 0,3...7, or 10 bar |
| fluit temp. range | -10...75, or max. 100C |
| housing material | brass |
| membrane material | NBR, Viton |
| operation | NC or NO |
| power of coils | 2VA AC, 2,5W DC |
| 7321 series, normally closed |
DATASHEET
|
| nominal sizes | G3/8"-3" |
| pressure range | 0,1...20bar, ill. 0,1...10bar |
| operating temperature range | -10...90C |
| membrane material | NBR vagy Viton |
| operation | NC |
| power of coil | 9W |
| 7322 series, normally open |
DATASHEET
|
| nominal sizes | G3/8"-3" |
| pressure range | 0,1...20 ,ill. 0,2...10bar |
| operating temperature | -10...90C |
| housing material | brass |
| membrane material | NBR or Viton |
| operation | NO |
| power of coil | 9W |
