S300超壓切斷閥(OPSS)安裝在一段調(diào)壓器前或后(請參見安裝圖),在超壓時保護管線設(shè)備,尤其是聚乙烯管線。有內(nèi)取壓和外取壓兩種形式。當(dāng)壓力超過預(yù)設(shè)值時,觸發(fā)機構(gòu)動作,閥門關(guān)閉切斷氣體供給。需手動復(fù)位。S300適用于天然氣、液化石油氣和城市煤氣,可任意方向安裝
SPARES KITS
Spares kit contents are marked ?? on parts list opposite
SPARES KIT CODE DESCRIPTION
SK3006-01 S300 OPSS Low Pressure
SK3006-02 S300 OPSS High Pressure
HIGH PRESSURE OVER-PRESSURE SLAM-SHUT SPRINGS
Bar PSIG Part Number Colour Code
0.5 - 1.0 7.25 - 14.5 J12506-311 DARK BLUE / BLACK
1.0 - 2.0 14.5 - 29.0 J12506-312 DARK BLUE / ORANGE
2.0 - 4.0 29.0 - 58.0 J12506-313 DARK BLUE / RED
LOW PRESSURE OVER-PRESSURE SLAM-SHUT SPRINGS
mbar “wc Part Number Colour Code
18 - 60 7.5 - 24 J12506-281 BLACK
50 - 80 20 - 32 J12506-282 ORANGE
60 - 110 24 - 44 J12506-283 RED
100 - 210 40 - 84 J12506-284 DARK GREEN
200 - 350 3 - 5 PSI J12506-287 YELLOW
280 - 500 4 - 7 PSI J12506-288 WHITE