Description
Size | DN 350 - 800, NPS 14 -32 |
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Pressure | up to PN160, up to class 900 |
Body sealing | Self sealing, cover sealing |
Shaft sealing | Molded graphite packing rings |
Closure time | < 2 sec. |
Material | Body: SA217WC6 Shaft: 1.4122 nitriding Disc lever = Hardfacings: 1.4115 Bearing sleeve 1.8550 nitriding Leakage classLeakage rate 2 acc. To DIN3220 pa |
Leakage class | Leakage rate 2 acc. To DIN3220 part 3 or IEC 534 part 4, Class IV, test course 2, medium L |
Connection | Welding ends acc. to EN/DIN and ASME |