Stainless Steel Braided Hose - Welded - MTS
Stainless Steel Braided hose is a corrugated stainless steel tube with external stainless braiding. It is commonly used in high temperature or highly corrosive applications where a rubber hose is not suitable. It is also popular in 'permanent' piping installations and short lengths (jumper) in potable water, cooling, steam, or other liquid applications where a "rubber hose" does not provide enough flexibility or a long enough service life (ie. rubber and plastics will degrade when subject to the elements). Our standard is the 321SS tube with the 304SS single braided reinforcement. The braiding acts as a reinforcement to increase pressure ratings and prevent elongation - it is not designed to withstand dragging, abuse, or excessive vibration. Metal hoses must not "twisted/torqued" or flexed on more than one plane - special care must be used during installation. Also, when flow velocity exceeds a certain value, resonant vibration can occur in hoses and lead to premature failure (increasing the hose ID can combat this problem).
For potable applications, make sure the hose is cleaned correctly at the factory.
For CSA approved assemblies (part # SB321Cxxx) in propane, natural gas or anhydrous ammonia applications with pipe thread, use Sch80 Male NPT (not standard Sch40 male NPT) and assemblies must be tested/certified, & permanently labelled. CSA also requires hoses 3" to 6" to be double braided for propane or natural gas applications.
We can also provide CRN numbers (Canadian Registration Number for Provincial Boilers Safety Association) for an additional charge (part # TCRN-xxx). These are typically required for steam hose assemblies used in connection with any boiler, pressure vessel, or pressure piping system. We also offer metal hoses for specialty applications, such as Chlorine, high pressure liquid nitrogen, oxygen, cryogenic, anhydrous ammonia, and others. Some of these hoses must be cleaned, degreased, capped, and bagged after fabrication.
Temperature Range: **Application/Pressure Dependent** : 321 & 316 -196°C (-321°F) to +816°C (+1500°F); 304SS +450°C (+850°F).
Construction: Corrugated 321 stainless steel tube with a braided 304 stainless steel reinforcement; SB316: Corrugated 316L stainless steel tube with a braided 304 stainless steel reinforcement (316 braiding on special request, # SB316S-).
Typical Fittings: Weld-on permanent ends. All ends are installed and tested by certified welders to section IX of the ASME boiler and pressure vessel code. All lengths are commonly measured by overall length (OAL) and ends are available in carbon steel, 304 stainless, 316 stainless. Contact us for minimum live length tables required for offset motions and applications subject to vibration.