Fittings for

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• Fittings for
• Steam Hose

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Remember
Steam is
HOT
minimum 212 F
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DPL Catalog Information in the back of the catalog
Direct relationship between pressure and
temperature of saturated steam.
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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.
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Dixon in keeping with the RMAs recommended
Safety Factors, has approved for Steam Service,
only a handful of products for use with Steam
Hose.
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WARNING .
NEVER use any Dixon fitting, or accessory item
for Steam Service unless Dixon Valve Coupling
Company has expressly approved it for such
service !
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The Boss System
for steam service
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The Boss System

• Available from ¼ through 6
• Good for up to 450 degrees F
• Available in Steel, Iron, Stainless Steel, and
  Brass.

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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.
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Boss Male Stems
Male NPT Thread
Heavy Duty Hex Nut
Boss Clamping Collar
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Boss Washer Style Female
Clamp collar
Flat surface on spud
Flat surface on hose stem
Flat Washer
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Boss Female Ground Joint
Boss clamping collar
Rounded seat in spud
Rounded head on hose stem
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Boss Accessories
for steam service
Female Adapter
LP Boss Male Stem
Wing Nut Cap
Female Spud
Male Adapter
Double Spud
Boss Hose Mender
Washer
Male Spud
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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.
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Boss Clamps
Gripping fingers to engage Boss collar on hose
stem
Nuts Bolts to retighten the clamp as needed.
Multi-section design for even take-up
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Clamp sections do not touch . plenty of room for
adjustment.
CORRECT
Clamp fingers properly engage fitting Boss
clamping collar.
Warning label installed.
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INCORRECT
Clamp sections touching each other.
Clamp fingers bottomed out on neck of fitting.
No warning label
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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.
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DPL Catalog Boss Section
Information can be found for both clamp sizing,
and for torque ratings on nuts bolts.
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STEAM Quick Disconnects
WARNING Do not disconnect under pressure
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STEAM Quick Disconnects

• 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.
• Large gripping collar on sleeve of the coupler
  for ease of handling with gloves on.
• Available ¼ through 1 ½ sizes.

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STEAM Quick Disconnects are Female NPT threaded
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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 !
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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. Insert a spare
  plug into the coupler end of the assembly, and
  roll the hose towards the open end to drain the
  water.

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Are there any questions?
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