Couplings for High-Pressure Air and Steam HoseHome

Viton Seal Ground Joint Couplings

Interlocking Male Stems

Heavy Duty Viton Seal Air Hammer Couplings

Interlocking U-Bolt Clamps

Ferrules for Ground Joints
Maximum System Working Pressure
Printable PDF
Campbell Crimpnology™ offers hose assembly systems for your high-pressure steam and air applications 		Campbell Fittings - Hose Fittings for Industry
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CATALOG SECTION D:
Couplings for High-Pressure
Air and Steam Hose

VITON SEAL GROUND JOINT COUPLINGS,
AIR HAMMER COUPLINGS, and MALE STEMS

Campbell Viton Seal Ground Joint Cutaway

Features & Benefits
• Viton Seal Couplings pass 1000 hour MIL-H-29210.
• Eliminates leaks with nut hand tightened.
• Viton seal (formulated by DuPont for high pressure steam and air applications) is protected inside machined stem groove and by swivel nut, extending working life.
• Spud does not contain plastic seat, extending working life.
• Interchangeable with old style domestic ground joint couplings.
• Machined hose ends with smooth end-detail to reduce potential failure due to abrasion - grips, seals, and protects hose.
• Interlock-groove locks ferrule into place for superior holding power.
• Crimped assemblies are low profile and eliminate sharp edges from bolts.
• Machined from carbon steel, cast ductile iron (meets ASTM A395/A536 specifications) and 316 stainless steel.
Recommended Hose Attachment
• Interlocking ferrules
• Interlocking U-bolt clamps

NEW! Swivel Interlocking Male Stem
• Designed for use with steam.
• Available with staked ferrule for crimped steam applications.
• Allows end-user easy connection into plant facilities.

NEW! Staked-On Ferrule for Steam Hose
Designed specifically for certain hose brands. Check with factory for information.
• Crimped steam assemblies eliminate the need for retightening bolts.
• Eliminates leaks, cuts costs caused by leaky clamps.
• Ferrule serrations bite to the wire achieving electrical continuity.
• Meets 250 PSI pressure rating for steam applications.

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INTERLOCKING U-BOLT CLAMPS
Features & Benefits
• 360° design wraps completely around hose for superior retention.
• Clamps fit hoses tightly without cracking, eliminating costly rework.
• Bolts on “up side” allow easier tightening/ re-tightening and improve “dragability”.
• Field repairable.
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Applications
Campbell Viton Ground Joint Details

Campbell Swivel Interlocking Male Stem

HOSE SYSTEM COMPONENTS
 MAX. SYSTEM WORKING PRESSURE (PSI@70°F) 1
HOSE SIZE
Fitting/Coupling
Attachment
 Hose Type 2
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
 6" 8"
Viton Ground Joint/Air Hammer Coupling
U-Bolt
Clamp
 Rubber/
Steam
1500
1250
1250
1250
1250
1250
800
500
500
 – –
Male Stem
and Mender
U-Bolt
Clamp
 Rubber/
Steam
1500
1250
1250
1250
1250
1250
800
500
500
 – –
Viton Ground Joint Coupling Staked Ferrule Steam 1250 1250 1250 – – – – – – – –
Viton Ground Joint/Air Hammer Coupling Long
Ferrule		 Rubber 1000 1000 1000 1000 1000 1000 650 400 400 – –
Male Stem Long
Ferrule		 Rubber 1000 1000 1000 1000 1000 1000 650 400 400 – –
Male Stem Staked Ferrule Steam 1250 1250 1250 – – – – – – – –

(1) For normal fluids (not hazardous, combustible, flammable, volatile, corrosive, ammonia or LPG). Individual testing should be employed for non-normal fluids to ensure capability. Pressures shown are only valid for the fitting/coupling/attachment and hose combinations indicated and for their threaded mating parts. System working pressure does not include end pull forces. Not for plastic fittings/couplings. All hose systems must be assembled using Campbell procedures and crimp specifications. See elevated temperature derating chart above. Consult factory for reduced temperatures. Never exceed the working pressure of the lowest rated component in the hose system. Maximum working pressure includes the highest pressure the system will experience, such as spikes, surges, and water hammer effects. (For example: If a system consists of a hose rated to 150 PSI and the couplings are rated to 500 PSI, the system should never be used in excess of 150 PSI.)

(2) Hose descriptions:
Air - any smooth bore rubber air or water hose. Includes most general purpose hose
Chemical – any smooth bore rubber chemical hose, including plastic lined (PTFE, UHMW, XLPE). Does not include soft tube hose
PVC – any smooth bore PVC or vinyl hose
Rubber – any smooth bore rubber hose except steam, hot tar & asphalt, chemical, and soft tube hose
Soft – any smooth bore rubber hose with a thick, soft tube. Usually gum rubber and some food-grade hose
Steam – includes hot tar and asphalt

Refer to Temperature Derating Chart for temperatures above 70°F.

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