Presentation on theme: "Connecting to industry. Fittings for Steam Hose Remember Steam is……… minimum 212 F."— Presentation transcript:
Connecting to industry
Fittings for Steam Hose
Remember Steam is……… minimum 212 F
DPL Catalog Information in the back of the catalog Direct relationship between pressure and temperature of saturated steam.
The RMA (Rubber Manufacturers Association) Has designated Steam the most potentially dangerous of all materials that is handled through a hose assembly. As such, it carries a Safety Requirement Factor of 10 to 1.
Dixon …… in keeping with the RMA’s recommended Safety Factors, has approved for Steam Service, only a handful of products for use with Steam Hose.
WARNING ……. NEVER use any Dixon fitting, or accessory item for Steam Service unless Dixon Valve & Coupling Company has expressly approved it for such service !
The Boss System for steam service
The Boss System Available from ¼” through 6” Available from ¼” through 6” Good for up to 450 degrees F Good for up to 450 degrees F Available in Steel, Iron, Stainless Steel, and Brass. Available in Steel, Iron, Stainless Steel, and Brass.
Boss Male Stems 1” ID & smaller is machined bar stock steel with standard barbed stem. 1 ¼” ID & larger is cast iron with “Cor-O-Zig” impression shank.
Boss Male Stems Male NPT Thread Boss Clamping Collar Heavy Duty Hex Nut
Boss Washer Style Female Flat surface on spud Flat Washer Flat surface on hose stem Clamp collar
Boss Female Ground Joint Rounded seat in spud Rounded head on hose stem Boss clamping collar
LP Boss Male Stem Boss Hose Mender Double Spud Washer Male Spud Female Spud Wing Nut Cap Female Adapter Male Adapter Boss Accessories for steam service
Cold Flow … … is a phenomena related to rubber (elastomers). Rubber moves away from points of stress! Pressure and heat intensify the Cold Flow movement. Since steam presents both pressure as well as heat, it becomes very important in choosing the proper means of clamping the assembly.
Boss Clamps Nuts & Bolts to retighten the clamp as needed. Gripping fingers to engage Boss collar on hose stem Multi-section design for “even” take-up
Clamp fingers properly engage fitting Boss clamping collar. Clamp sections do not touch …. plenty of room for adjustment. Warning label installed.
Clamp fingers “bottomed out” on neck of fitting. Clamp sections touching each other. No warning label
Boss Clamps Torque values on the nuts & bolts of the Boss clamps will vary by size. Torque values in Foot Pounds can be found in the Boss Clamp section of the Dixon DPL Catalog.
DPL Catalog Boss Section Information can be found for both clamp sizing, and for torque ratings on nuts & bolts. Hose ID size Hose OD range Torque
STEAM Quick Disconnects WARNING: Do not disconnect under pressure
STEAM Quick Disconnects Rated to a maximum of 100 psi saturated steam (338 degrees F). Rated to a maximum of 100 psi saturated steam (338 degrees F). Spring loaded safety shut-off valve in both the plug and the coupler. Spring loaded safety shut-off valve in both the plug and the coupler. Large gripping collar on sleeve of the coupler for ease of handling with gloves on. Large gripping collar on sleeve of the coupler for ease of handling with gloves on. Available ¼” through 1 ½” sizes. Available ¼” through 1 ½” sizes.
STEAM Quick Disconnects are Female NPT threaded ….. In order to be properly used in Steam Service they must be threaded onto a “Boss” male that has been secured in the hose with a “Boss” clamp !
STEAM Quick Disconnects In order to properly drain a steam hose assembly that has valve type fittings, you have two options available: Allow media to completely cool. Completely remove the valved Quick Disconnects and drain the water. Allow media to completely cool. Completely remove the valved Quick Disconnects and drain the water. Allow media to completely cool. Insert a spare plug into the coupler end of the assembly, and roll the hose towards the open end to drain the water. Allow media to completely cool. Insert a spare plug into the coupler end of the assembly, and roll the hose towards the open end to drain the water.