Kamvalok® Flat-Face Coupler and Adaptor
The new Kamvalok® Flat is the next generation of OPW dry-disconnect couplings. We’ve taken our proven, best-in-class Kamvalok and flattened the connection points. This effectively eliminates all cavities where liquid can pool and subsequently spill upon disconnection.
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Technical Info
Design Parameters
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 Parameters
Max Design Pressure 1-1⁄2" Size - 210 psig (15 bar) Temperature Range • Buna-N -20°F – 212°F (-29°C – 100°C) • Fluorocarbon -20°F – 400°F (-29°C – 204°C) • PTFE Encapsulated Silicone -15ºF – 400ºF (-26ºC – 204ºC) • EPDM -50°F – 250°F (-46°C – 121°C) • FFKM* -15°F – 400°F (-26°C – 204°C) Design Standard Size ASME ASME 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
Body, Poppet, Seal Cylinder Aluminum, Stainless Steel Shaft Link, Cam Arms, Poppet Link Stainless Steel 
# 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 Seal Options
SEALS 1 ½" O-Ring, Main Seal
Gasket
Nose Seal
O-Ring, Shaft
O-Ring, Stuffingbox
Buna-N H03051M
H20544M
H31527M
H20129M
H31705M
Fluorocarbon H03070M
H00973M
H31530M
H20175M
H31706M
Teflon® H20184M
H07904M
H31536M
H33153M
H33154M
EPT H03596M
H20536M
H31533M
H20176M
H31707M
FFKM H33190M
H33251M
H31536M
H33153M
H33154M
2" O-Ring, Main Seal
Gasket
Nose Seal
O-Ring, Shaft
O-Ring, Stuffingbox
Buna-N H06223M
H20545M
H31528M
H20129M
H31705M
Fluorocarbon H31865M
H00974M
H31531M
H20175M
H31706M
Teflon® H20185M
H07905M
H31537M
H33153M
H33154M
EPT H06142M
H20537M
H31534M
H20176M
H31707M
FFKM H33191M
H33252M
H31537M
H33153M
H33154M
3" O-Ring, Main Seal
Gasket
Nose Seal
O-Ring, Shaft
O-Ring, Stuffingbox
Buna-N H05152M
H32180M
H31529M
H20129M
H31705M
Fluorocarbon H31841M
H32181M
H31532M
H20175M
H31706M
Teflon® H20186M
H31562M
H31538M
H33153M
H33154M
EPT H10209M
H20266M
H31535M
H20176M
H31707M
FFKM H33197M
H33253M
H31538M
H33153M
H33154M
Temperature/Pressure Chart
Flow Chart
Operation
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.
Drippage Data
Coupler Poppet Style Adaptor Poppet Style Orientation of Connection 1-1/2” 2” Avg. Drippage (ml) 3” Avg. Drippage (ml) FLAT FLAT Vertical 0.96 0.8 0.8 FLAT FLAT Horizontal 2.4 3.5 1.3 FLAT Std. Face Horizontal 5.4 5.8 1.7 FLAT Std. Face Vertical 3.4 4 13.5 Std. Face Std. Face Vertical 1.3 2.6 5.5 Std. Face Std. Face Horizontal 3 4.5 7 Std. Face FLAT Vertical 1 2.8 2 Std. Face FLAT Horizontal 2.4 7.2 3.8 -
Ordering Information
