keystone diagram rfq

Keystone Ear and Pinch Clamps

Murray KEYSTONE clamping products offer superior strength from 100% stainless steel.

Keystone Pinch Clamps are welded and are quick and easy to install, and provide a uniform, tamper proof seal. They are widely used on both soft hose and rigid plastic pipe. You will find these clamps anywhere you connect poly pipe. Ear clamps are excellent for use in a multitude of irrigation and water supply systems, on fuel and vapor lines, to attach dust shields and air filters, for beverage supply lines, for car wash supply lines, and for securing bundles of cable. When crimping with a hand tool, Murray’s true Keystone geometry, located in the ear area, dramatically reduces miscrimps. Keystone Pinch clamps are 100% Stainless Steel

Download Specifications (PDF)
"A" Diameter Range
Part NumberMetricDecimals
KS 311911.9100.470.395
KS 313313.311.40.5250.45
KS 31501512.50.590.49
KS 315715.713.20.620.52
KS 316116.113.60.6350.535
KS 316516.5140.650.55
KS 317317.314.70.680.58
KS 318518.5160.730.63
KS 3198*19.816.60.780.655
KS 3210*2117.90.830.705
KS 322222.219.10.8750.75
KS 323623.620.50.930.805
KS 3256*25.622.51.010.885
KS 3271*27.1241.070.945
KS 330130.1271.1851.06
KS 3316*31.628.51.2451.12
KS 332432.429.31.2751.155
KS 3331*33.1301.31.18
KS 3346*34.631.51.361.24
KS 339639.636.51.561.44
KS 3410*4137.91.6151.49
KS 3425*42.539.41.6751.55
KS 3485*48.545.51.911.787
*Popular irrigation sizes are available for immediate shipment packaged in poly bags. Please inquire on
availability of other packaging configurations and lead time for other sizes. Other sizes, shapes and materials
are available upon request, subject to minimum order quantities.