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HIGH PRESSURE METRIC TUBE COUPLINGS
Benem ts: • Leak free O-Ring seal • Safe joint every time • Low tightening torque and clamping force rises with the internal pressure • Low installed cost, no welding (so inert gas purging, NDT and excessive fl ushing are not required), minimal tube preparation and no special assembly equipment required • Demountable and reusable, can be used with most tube materials
Features: • Body – mild steel, stainless steel or cupro-nickel. Compatible with most fl uids and environments. Locates O-Ring and tube. • O-Ring – nitrile, FPM (Viton), EP or FEP encapsulated FPM. Compatible with most fl uids. Highly resistant to leakage even under severe vibration, pressure pulsation and temperature cycling. Provides diametric seal between tube OD and body cavity.
Technical: • 3:1 safety factor • Derate by 50% for high pressure gas systems • Pressure ratings based on the tube OD tolerance to BS3602 and DIN2391C All m ttings also available in the following materials upon request: • Stainless steel • Cupro-nickel Seals available on request: • EP (ethylene propylene) • FEP encapsulated FPM All fi ttings supplied with Nitrile seals as standard.
• Nut – mild steel, stainless steel or cupro-nickel. Compatible with most environments. Closes split collet and retains sealing mechanism. • Back-up washer – mild steel, stainless steel, or cupro-nickel. Provides additional support from the tube and locates the O-Ring. • Split collet – mild steel, stainless steel or cupro-nickel. Clamping force rises with pressure. Large clamping area ensures minimal deformation of the tube. Retains tube in position.
Working Temperature: Nitrile: -40°C to +100°C Viton: -20°C to +150°C
Maximum Working Pressure: 6mm to 22mm: 680 bar 25mm to 50mm: 500 bar
Straight Couplings
Equal Bulkheads
Reducing Branch Tees
Tube x Tube 0459
Tube x Tube 0459
Tube x Tube 0459 KRAM12-M8ROTR KRAM16-M8ROTR KRAM20-M8ROTR KRAM25-M12ROTR KRAM25-M16ROTR KRAM30-M16ROTR KRAM38-M20ROTR
OD mm
OD mm
OD mm
OD mm
KRAM6CR KRAM8CR KRAM10CR KRAM12CR KRAM16CR KRAM20CR KRAM22CR KRAM25CR KRAM30CR KRAM38CR KRAM50CR
KRAM6BPR KRAM8BPR KRAM10BPR KRAM12BPR KRAM16BPR KRAM20BPR KRAM22BPR KRAM25BPR KRAM30BPR KRAM38BPR KRAM50BPR
6 8
6 8
12 16 20 25 25 30 38
8 8 8
10 12 16 20 22 25 30 38 50
10 12 16 20 22 25 30 38 50
12 16 16 20
Tech Sheet 20548
Tech Sheet 20544
Tech Sheet 20545
Equal Elbows
Equal Tees
Tube x Tube 0459
Tube x Tube 0459
OD mm
OD mm
KRAM6ER KRAM8ER KRAM10ER KRAM12ER KRAM16ER KRAM20ER KRAM22ER KRAM25ER KRAM30ER KRAM38ER KRAM50ER
KRAM6TR KRAM8TR KRAM10TR KRAM12TR KRAM16TR KRAM20TR KRAM22TR KRAM25TR KRAM30TR KRAM38TR KRAM50TR
6 8
6 8
10 12 16 20 22 25 30 38 50
10 12 16 20 22 25 30 38 50
Tech Sheet 20546
Tech Sheet 20547
Minimum order quantity on selected items may apply
138
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