Item # 20TBOB, TWOB, TBOB & TWOBHV Series Hose (Stainless Steel Braid) On Dunham Rubber & Belting Corp.

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All Categories > Sanitary Hose and Fittings > High Purity Tubing, Hose & Fittings > Sanitary Hose > Fluoropolymer-Lined Hose (incl. PTFE, FEP & PFA) > Convoluted Bore Flouropolymer-Lined Hose > TWOB, TBOB & TWOBHV Series Hose (Stainless Steel Braid) > Item # 20TBOB


	Item # 20TBOB, TWOB, TBOB & TWOBHV Series Hose (Stainless Steel Braid)
	List Price QUOTE

Chemfluor® PTFE Fluoropolymer Helically Convoluted Inner Tube
Stainless Steel Braid
Open Pitch

TWOBHV/TBOBHV Series

Fully rated vacuum hose
Recommended for full vacuum applications
Should always be used for 2-1/2", 3" and 4" I.D. assemblies

Features and Benefits

Chemfluor® PTFE inner tube

Excellent chemical resistance
Compatible with almost all materials
Rounded, open-pitch helical convolutions shaped to ensure smooth product flown on-stick surface, easy to clean (steam, caustics, solvents or other cleaning agents)
Assured sterility
Easy to flex, yet won't flatten when bent

Chemfluor® black PTFE electrostatic dissipating conductive inner tube

Co-extrusion design with minute amount of carbon added to inner portion of thick-wall construction
Processed to prevent chemical leaching or friction contamination
Chemfluor® PTFE properties are completely maintained

Note:
Extended Service Life Tip: Flexible Components suggests using full-length anti-kink armor casing or at least 16" to 24" long anti-kink cuffs at each fitting end to help reduce the strain on the crimp collar and fittings in high load installations. Prolonged service at elevated temperatures will reduce total service life.

TWOB, TBOB & TWOBHV Series Hose (Stainless Steel Braid) (8TBOB)

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TWOB, TBOB & TWOBHV Series Hose (Stainless Steel Braid)-A

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Specifications · Applications · Common Media · Details · Engineering Specifications · Pressure Rating

Specifications

Inside Diameter

1.25 in
31.8 mm

Outside Diameter

1-5/8 in
41.3 mm

Max. Length

45 ft

Max. Working Pressure¹

337 psi
2.32 MPa

Min. Burst Pressure²

1350 psi
9.31 MPa

Min. Bend Radius

5.50 in
139.70 mm

Vacuum Hg (@ 70ºF)³

29.9 in
75.95 mm

Inner Tube

Chemfluor® Black

Weight

0.70 lbs/ft
1.04 kg/m

¹ Working Pressure is given @ 70°F,; decrease working pressure 1% for every 2°F above 250°F.
² Burst pressure ratings at ambient 70°F (21°C). See below on vacuum/pressure ratings at temperatures other than ambient.
³ Vacuum Rating is given @ 70°F @ 2X minimum bend radius; decrease vacuum rating 1% for every 2°F above 250°F. Vacuum rating decreases when installed @ less than 2X minimum bend radius. TWOBHV/TBOBHV Series (heavy duty vacuum option) allows full vacuum ratings for 1-1/2", 2" and 2-1/2" sizes up to 350°F decrease vacuum rating 1% for every 2°F above 350°F. Vacuum rating @ less than 2X minimum bend radius: 1-1/4" = 26" Hg; 1-1/2" = 25" Hg; 2" = 20" Hg; 2-1/2" = 17" Hg; 3" = 20" Hg; 4" = 17" Hg.

Applications

Sanitary transfer
Food, flavors and syrups
Solvent transfer
Drain and sample lines

Common Media

Base chemicals
Corn syrup
Hexane
Product transfer
Caustic solutions

Details

Construction: Inner Tube:

-Chemfluor® black PTFE electrostatic dissipating conductive

Reinforcement: 316 stainless steel braid
-Other braid options available
-Polypropylene - TWOY/TBOY
-PVDF (Kynar®) - TWOK/TBOK

Fittings:

PermaSeal® crimp-style
-Over 40 styles
Flare-Thru fitting technology available:
-150# lap-joint style flanged
-Female cam and groove
-Sanitary clamp style
-1/2" mini sanitary Flare-Thru available using 3/8" ID open pitch hose
See Fitting Details: Flare-Thru Fittings: PermaSeal® Fittings: Adapter Fittings

Important:

Hose assemblies may be autoclaved; however, flare faces of Flare-Thru fittings must be clamped down to prevent damage to sealing surface.

Engineering Specifications

Temperature Rating

-100ºF to +450ºF
-73ºC to +232ºC

Pressure Rating

Burst Pressure ratings at ambient 70°F (21°C). See below on vacuum/pressure ratings at temperatures other than ambient.
Working Pressure is given @ 70°F,; decrease working pressure 1% for every 2°F above 250°F.
Vacuum Rating is given @ 70°F @ 2X minimum bend radius; decrease vacuum rating 1% for every 2°F above 250°F. Vacuum rating decreases when installed @ less than 2X minimum bend radius. TWOBHV/TBOBHV Series (heavy duty vacuum option) allows full vacuum ratings for 1-1/2", 2" and 2-1/2" sizes up to 350°F decrease vacuum rating 1% for every 2°F above 350°F. Vacuum rating @ less than 2X minimum bend radius: 1-1/4" = 26" Hg; 1-1/2" = 25" Hg; 2" = 20" Hg; 2-1/2" = 17" Hg; 3" = 20" Hg; 4" = 17" Hg.
Extended Service Life Tip: Flexible Components suggests using full-length anti-kink armor casing or at least 16" to 24" long anti-kink cuffs (Hose Cover Options) at each fitting end to help reduce the strain on the crimp collar and fittings in high load installations. Prolonged service at elevated temperatures will reduce total service life.

Item # 20TBOB, TWOB, TBOB & TWOBHV Series Hose (Stainless Steel Braid)