torque free seal at all tubing connections. Fittings confirm to ANSI 31.1, ANSI B 31.2, ANSI Sec VIII and BS 4368.SIGMA's Pipe Fittings are designed for high pressure applications on hydraulic and pneumatic lines, fittings are manufactured upto a rating of 10000 PSI as per DIN 2353 & FS 8801 - 8805 standards. Forged fittingsĀ as per ASME B