How Percent of Grade Relates to Pipe Deflection - …

1 How Percent of Grade Relates to pipe Deflection for A-LOK X-CEL/Premium Compression Connectors and Z-LOK Cast in Boot Connectors Per 100 Feet of pipe % of Grade Example: 5% of Grade /100 Feet of pipe = pipe Angle/ Deflection Angle of pipe Percent OF Grade CHART Compression Connectors Slope Grade pipe Angle 1% .57 2% 3% 4% 5% 6% 7% 8% 9% 10% 11% 12% 13% 14% 15% 16%

2 *17% * *This is the point, of the slope, where standard Deflection of the pipe in A-LOK X-CEL and Premium Connectors can no longer be enough and must be helped by skiving the mandrels. (See Figure 2)* Z-LOK Cast in Boot Connectors Slope Grade pipe Angle Slope Grade pipe Angle 1% .57 26% 2% 27% 3% 28% 4% 29% 5% 30% 6% 31% 7% 32% 8% 33% 9% 34% 10%

3 35% 11% 36% 12% 37% 13% 38% 14% 39% 15% 40% 16% 41% 17% 42% 18% 43% 19% 44% 20% 45% 21% *46% * 22% 24% 25% 23% *Using 8 PVC pipe , this is the point, of the slope, where standard Deflection of the pipe in a Z-LOK Cast in Boot Connectors can no longer be enough and must be helped by skiving the mandrels.

4 (See Figure 2)* Fig. 2: How Skiving a Mandrel can Increase the pipe Deflection Standard A-LOK Connector Installation pipe Pitched 10 ( Slope) Standard Z-LOK Connector Installation with 8 PVC pipe Pitched (46% Slope) A-LOK Connector Skived 5 pipe Pitched 15 ( Slope) Z-LOK Connector Skived 15 using 8 PVC pipe Pitched 40 (84% Slope)