The scope of this bid is to furnish and deliver Henry Pratt 10â-16â Type 150# E-Lok Rubber Seated Ball Valve, or approved equal, and provide installation supervision. All items are to be as specified and not require adapters. Henry Pratt 10" Rubber Seated Ball Valve 150# Flanged E-Lok Iron body X Double Buna-N seat or approved equal. Henry Pratt 12" Rubber Seated Ball Valve 150# Flanged E-Lok Iron body X Double Buna-N seat or approved equal. Henry Pratt 14" Rubber Seated Ball Valve 150# Flanged E-Lok Iron body X Double Buna-N seat or approved equal. Henry Pratt 16" Rubber Seated Ball Valve 150# Flanged E-Lok Iron body X Double Buna-N seat or approved equal. Installation and start-up Supervision Service. Price per HALF DAY to include all travel and expenses for 2 men. No additional charges to be allowed. Rockland County to supply all Labor, Rigging and Plumbing. Installation and start-up Supervision Service. Price per FULL DAY to include all travel and expenses for 2 men. No additional charges to be allowed. Rockland County to supply all Labor, Rigging and Plumbing.