OPW Kamvalok® Dry Disconnect Couplings are considered the standard of the industry. Used at liquid transfer points where product loss could occur, OPW Kamvaloks® provide a reliable solution to prevent spillage during connection or disconnection. OPW Kamvalok® Dry Disconnect Couplings are used by manufacturers of paint, lacquers, inks, adhesives, fatty acids, pharmaceuticals, liquid soaps, and many other liquid products. They are particularly well suited for handling petroleum products, solvents, ag-chemicals, vegetable oils, detergents and many acids and caustics.
| Sizes in Inches (Approximate) | 1 1/2" | 2" | 3" | |
| A | Length of Body | 8" | 8.81" | 10.03" |
| B | Diameter of Body | 3.12" | 3.52" | 5.50" |
| C | Distance across Cam Arms - closed | 4.75" | 5.22" | 7.34" |
| C1 | Distance across Cam Arms - open | 8.94" | 9.41" | 14.78" |
| D | Centerline of Shaft to end of Handle | 6.06" | 6.06" | 6.06" |
| E | Diameter of Coupler End | 3.12" | 3.52" | 5.50" |
| F | Length from Pipe End to end of Handle | 7.98" | 8.03" | 8.56" |
| G | Centerline of Coupler to top of Handle | 3.56" | 3.75" | 4.53" |
| H | Pipe Thread (NPT) | 1.50" (DN40) | 2" (DN50) | 3" (DN80) |
| Design Standard | Size | ASME B31.3 | ASME B31.3 |
| Max. Design Temp | ALL | See Material Section | See Material Section |
| Min. Design Temp | ALL | See Material Section | See Material Section |
| Max Design Pressure | 1-1/2" | 15 Bar | 210 psi |
| 2" | 10.5 Bar | 150 psi | |
| 3" | 8.5 Bar | 120 psi |
| Materials | Aluminum (250°F/121°C Max Temp) | SST (See Seal Chart) |
| Body, Poppet | A356-T6 ASTM B-26 | ASTM A351 CFM 316L SST |
| Cam Arms | ASTM A351 CF8M 316 SST | ASTM A351 CF8M 316 SST |
| Seal Cylinder | 6061-T6 | A351 CD4MCU Duplex SST |
| Shaft | ASTM A479 Ferralium 255 SST | ASTM A479 Ferralium 255 SST |
| Seals | See Chart | See Chart |
| Poppet Link | A351 CD4MCU Duplex SST | A351 CD4MCU Duplex SST |
| Shaft Link | A351 CD4MCU Duplex SST | A351 CD4MCU Duplex SST |
| # | Description | Qty | 1-1/2" | 2" | 3" | RK |
| 1 | Lever Assembly | 1 | H32040 | H32040 | H32040 | |
| 2 | Shaft | 1 | C21119RE | C21123RE | C21112RE | |
| 3 | Spacer | 1 | H32031RE | H32030RE | H32032RE | |
| 4 | Groove Pin, Cam Arm | 2 | H20141M | H20141M | H20144M | |
| 5 | Autolok™ Arm Assembly | 1 | 733ARK-SS20 | 733ARK-SS20 | 733ARK-SS30-PADDLE | |
| 6 | Body | 1 | C21120A (EW) | C21128A (EW) | C21113A (EW) | |
| 7 | O-Ring, Main Seal | 1 | See Seal Options | See Seal Options | See Seal Options | + |
| 8 | Spring | 1 | H06128M | H04328M | H10352M | |
| 9 | Gasket | 1 | See Seal Options | See Seal Options | See Seal Options | + |
| 10 | Guide, Seal Cylinder | 1 | H31539M | H31540M | H31541M | + |
| 11 | Seal Cylinder | 1 | H31542A (EW) | H31543A (EW) | H31544A (EW) | + |
| 12 | Nose Seal | 1 | See Seal Options | See Seal Options | See Seal Options | + |
| 13 | Nut, Shaft | 1 | H32111M | H32111M | H32111M | |
| 14 | Lock Washer, Shaft | 1 | H31920M | H31920M | H31920M | |
| 15 | O-Ring, Shaft | 2 | See Seal Options | See Seal Options | See Seal Options | + |
| 16 | StuffingBox | 1 | C20812RE | C20812RE | C20812RE | |
| 17 | O-Ring StuffingBox | 1 | See Seal Options | See Seal Options | See Seal Options | + |
| 18 | Shaft Link | 1 | 9C21118EW | 9C21125EW | 9C21111EW | |
| 19 | Clevis Pin | 2 | H31692M | H31692M | H31688M | |
| 20 | Poppet Link | 1 | 9C21117EW | 9C21124EW | 9C21110EW | |
| 21 | Cotter Pin | 2 | H04981M | H04981M | H04981M | + |
| 22 | Poppet | 1 | C21121A (EW) | C21129A (EW) | C21115A (EW) | |
| 23* | Guidebearing | 1 | N/A | N/A | N/A | + |
| Note: (EW) Replaces A for SST Fittings *Note: Not Shown | + Items included in repair kits | |||||
OPW Engineered Systems Kamvalok® Dry Disconnects are easy to operate. Connections and disconnects are accomplished by simply closing and opening two cam arms which lock into the machined groove around the circumference of the mating adaptor. The adaptor contains a spring-loaded poppet assembly that is actuated by the handle-action on the coupler.
Below is a listing of some of the products/applications that have successfully used Kamvalok® couplers.
Chemical | Application |
| Acetone | Tank Cars |
| Acrylates | In Plant |
| Acrylic Acid | Tank Truck |
| Acrylonitrile | Tank Cars |
| Acrylonitrile, MMA, Butyl Acrylate | |
| Allyl Chloride | |
| Allyl Lites | |
| Amines (Various) | Tank Truck |
| Anthranilic Acid (AA) | Tank Cars |
| Anthranilic Acid (AA) | Tank Truck |
| Automotive Paint | In Plant |
| Benzene | Tank Cars |
| Benzene | Tank Truck |
| Butyl Acrylate | Tank Trucks |
| Butyl Acrylate, Acrylic Acid, Acrylic Monomers | |
| C5 Raffinate | Tank Truck |
| Crude Acetone | Tank Truck |
| Crude MBA | Tank Truck |
| CTLO (coal tar light oil) | Tank Cars |
| Cumene | Tank Truck |
| DCDP | Tank Truck |
| Diesel Exhaust Fluid (DEF) | Totes |
| Dow Therm | Tank Trucks |
| Enserv | Totes/trucks |
| Epichlorohydrin | Tank Cars |
| Ethelyne Oxide | Rail Car |
| Ethyl Acrylate | Tank Cars |
| Ethyl Acrylate | Tank Truck |
| Ethylene Oxide (EO) | Tank Cars |
| Flex Caustic | Tank Truck |
| Glycol (deicing fluids) | Tank Trucks |
| Hydrogen Peroxide | Rail Car |
| Isoprene | Tank Truck |
| Isopropyl Alcohol | Tank Truck |
| Light Paralysis Oil | Tank Truck |
| LRO | Tank Truck |
| Lubricating Oils | Tank Trucks |
| Methanol | Rail Car |
| Mixed Alcohol | Tank Truck |
| Monochloroacetic Acid, 80% Solution (MCAA) | |
| Nitric Acid | Tank Truck |
| Paralysis | Tank Truck |
| Peperzine | Tank Truck |
| Piperylene | Tank Truck |
| Polyol | Rail Car |
| Propylene | Tank Cars |
| Propylene Oxide (PO) | Tank Truck |
| Propylene Oxide (PO) | Rail Car |
| RTBA | Tank Truck |
| Sour Gasoline | Tank Cars |
| Spent Caustic | Tank Truck |
| Styrene | Tank Truck |
| Styrene | Rail Car |
| Sulfuric Acid (H2SO4), virgin 96% | Tank Truck |
| Tebol 99 | Tank Truck |
| Telene (tobacco herbicide) | Totes/trucks |
| Telone II | |
| Tert-Butyl Hydroperoxide (TBHP) | Tank Truck |
| Trichlorobenzoic (TBA) Acetone | Tank Truck |
| Trichlorobenzoic (TBA) Heavies | Tank Truck |
| WFE Distillate | Tank Truck |
| WFE Feed | Tank Truck |
| WFE Heavies | Tank Truck |
| Sizes in Inches (Approximate) | 1 1/2" | 2" | 3" | |
| A | Length of Body | 8" | 8.81" | 10.03" |
| B | Diameter of Body | 3.12" | 3.52" | 5.50" |
| C | Distance across Cam Arms - closed | 4.75" | 5.22" | 7.34" |
| C1 | Distance across Cam Arms - open | 8.94" | 9.41" | 14.78" |
| D | Centerline of Shaft to end of Handle | 6.06" | 6.06" | 6.06" |
| E | Diameter of Coupler End | 3.12" | 3.52" | 5.50" |
| F | Length from Pipe End to end of Handle | 7.98" | 8.03" | 8.56" |
| G | Centerline of Coupler to top of Handle | 3.56" | 3.75" | 4.53" |
| H | Pipe Thread (NPT) | 1.50" (DN40) | 2" (DN50) | 3" (DN80) |
| Design Standard | Size | ASME B31.3 | ASME B31.3 |
| Max. Design Temp | ALL | See Material Section | See Material Section |
| Min. Design Temp | ALL | See Material Section | See Material Section |
| Max Design Pressure | 1-1/2" | 15 Bar | 210 psi |
| 2" | 10.5 Bar | 150 psi | |
| 3" | 8.5 Bar | 120 psi |
| Materials | Aluminum (250°F/121°C Max Temp) | SST (See Seal Chart) |
| Body, Poppet | A356-T6 ASTM B-26 | ASTM A351 CFM 316L SST |
| Cam Arms | ASTM A351 CF8M 316 SST | ASTM A351 CF8M 316 SST |
| Seal Cylinder | 6061-T6 | A351 CD4MCU Duplex SST |
| Shaft | ASTM A479 Ferralium 255 SST | ASTM A479 Ferralium 255 SST |
| Seals | See Chart | See Chart |
| Poppet Link | A351 CD4MCU Duplex SST | A351 CD4MCU Duplex SST |
| Shaft Link | A351 CD4MCU Duplex SST | A351 CD4MCU Duplex SST |
| # | Description | Qty | 1-1/2" | 2" | 3" | RK |
| 1 | Lever Assembly | 1 | H32040 | H32040 | H32040 | |
| 2 | Shaft | 1 | C21119RE | C21123RE | C21112RE | |
| 3 | Spacer | 1 | H32031RE | H32030RE | H32032RE | |
| 4 | Groove Pin, Cam Arm | 2 | H20141M | H20141M | H20144M | |
| 5 | Autolok™ Arm Assembly | 1 | 733ARK-SS20 | 733ARK-SS20 | 733ARK-SS30-PADDLE | |
| 6 | Body | 1 | C21120A (EW) | C21128A (EW) | C21113A (EW) | |
| 7 | O-Ring, Main Seal | 1 | See Seal Options | See Seal Options | See Seal Options | + |
| 8 | Spring | 1 | H06128M | H04328M | H10352M | |
| 9 | Gasket | 1 | See Seal Options | See Seal Options | See Seal Options | + |
| 10 | Guide, Seal Cylinder | 1 | H31539M | H31540M | H31541M | + |
| 11 | Seal Cylinder | 1 | H31542A (EW) | H31543A (EW) | H31544A (EW) | + |
| 12 | Nose Seal | 1 | See Seal Options | See Seal Options | See Seal Options | + |
| 13 | Nut, Shaft | 1 | H32111M | H32111M | H32111M | |
| 14 | Lock Washer, Shaft | 1 | H31920M | H31920M | H31920M | |
| 15 | O-Ring, Shaft | 2 | See Seal Options | See Seal Options | See Seal Options | + |
| 16 | StuffingBox | 1 | C20812RE | C20812RE | C20812RE | |
| 17 | O-Ring StuffingBox | 1 | See Seal Options | See Seal Options | See Seal Options | + |
| 18 | Shaft Link | 1 | 9C21118EW | 9C21125EW | 9C21111EW | |
| 19 | Clevis Pin | 2 | H31692M | H31692M | H31688M | |
| 20 | Poppet Link | 1 | 9C21117EW | 9C21124EW | 9C21110EW | |
| 21 | Cotter Pin | 2 | H04981M | H04981M | H04981M | + |
| 22 | Poppet | 1 | C21121A (EW) | C21129A (EW) | C21115A (EW) | |
| 23* | Guidebearing | 1 | N/A | N/A | N/A | + |
| Note: (EW) Replaces A for SST Fittings *Note: Not Shown | + Items included in repair kits | |||||
OPW Engineered Systems Kamvalok® Dry Disconnects are easy to operate. Connections and disconnects are accomplished by simply closing and opening two cam arms which lock into the machined groove around the circumference of the mating adaptor. The adaptor contains a spring-loaded poppet assembly that is actuated by the handle-action on the coupler.
Below is a listing of some of the products/applications that have successfully used Kamvalok® couplers.
Chemical | Application |
| Acetone | Tank Cars |
| Acrylates | In Plant |
| Acrylic Acid | Tank Truck |
| Acrylonitrile | Tank Cars |
| Acrylonitrile, MMA, Butyl Acrylate | |
| Allyl Chloride | |
| Allyl Lites | |
| Amines (Various) | Tank Truck |
| Anthranilic Acid (AA) | Tank Cars |
| Anthranilic Acid (AA) | Tank Truck |
| Automotive Paint | In Plant |
| Benzene | Tank Cars |
| Benzene | Tank Truck |
| Butyl Acrylate | Tank Trucks |
| Butyl Acrylate, Acrylic Acid, Acrylic Monomers | |
| C5 Raffinate | Tank Truck |
| Crude Acetone | Tank Truck |
| Crude MBA | Tank Truck |
| CTLO (coal tar light oil) | Tank Cars |
| Cumene | Tank Truck |
| DCDP | Tank Truck |
| Diesel Exhaust Fluid (DEF) | Totes |
| Dow Therm | Tank Trucks |
| Enserv | Totes/trucks |
| Epichlorohydrin | Tank Cars |
| Ethelyne Oxide | Rail Car |
| Ethyl Acrylate | Tank Cars |
| Ethyl Acrylate | Tank Truck |
| Ethylene Oxide (EO) | Tank Cars |
| Flex Caustic | Tank Truck |
| Glycol (deicing fluids) | Tank Trucks |
| Hydrogen Peroxide | Rail Car |
| Isoprene | Tank Truck |
| Isopropyl Alcohol | Tank Truck |
| Light Paralysis Oil | Tank Truck |
| LRO | Tank Truck |
| Lubricating Oils | Tank Trucks |
| Methanol | Rail Car |
| Mixed Alcohol | Tank Truck |
| Monochloroacetic Acid, 80% Solution (MCAA) | |
| Nitric Acid | Tank Truck |
| Paralysis | Tank Truck |
| Peperzine | Tank Truck |
| Piperylene | Tank Truck |
| Polyol | Rail Car |
| Propylene | Tank Cars |
| Propylene Oxide (PO) | Tank Truck |
| Propylene Oxide (PO) | Rail Car |
| RTBA | Tank Truck |
| Sour Gasoline | Tank Cars |
| Spent Caustic | Tank Truck |
| Styrene | Tank Truck |
| Styrene | Rail Car |
| Sulfuric Acid (H2SO4), virgin 96% | Tank Truck |
| Tebol 99 | Tank Truck |
| Telene (tobacco herbicide) | Totes/trucks |
| Telone II | |
| Tert-Butyl Hydroperoxide (TBHP) | Tank Truck |
| Trichlorobenzoic (TBA) Acetone | Tank Truck |
| Trichlorobenzoic (TBA) Heavies | Tank Truck |
| WFE Distillate | Tank Truck |
| WFE Feed | Tank Truck |
| WFE Heavies | Tank Truck |
Reach Out to Our Customer Support Team for Prompt Assistance and Answers to Any Questions or Concerns You May Have
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Reach Out to Our Customer Support Team for Prompt Assistance and Answers to Any Questions or Concerns You May Have
Contact Us for Technical Support on Your Projects and Resolving Any Technical Issues You Encounter