Azbil Corporation No. SS2-8113-0320 - 5 - Figure 3 Bellows Type by Temperature and Pressure Ranges Note) Bellows type are classified into Formed bellows type I, II and welded bellows by temperature and pressure ranges. Please refer to No. SS2-BSL100-0100 about detail of bellows specification. Figure 4 Temperature / normal differential pressure ranges requiring Stellite Note) When cavitation / flushing service, oil prohibitive service, or retention of valve-close performance is required, use of Stellite is recommended regardless of temperature or differential pressure. 3 2 1 -50 -30 +300 +350 Maximum pressure(MPa) Welded bellows Formed bellows type II Formed bellows type I Fluid temperature ( C) Stellite 1470 {15} 981 {10} 490 {5} 0 -196 0 +100 +200 +300 Maximum pressure Fluid temperature ( C) kPa {kgf/cm2} 1 7