Also, here's how to select each option. If you want to sign for a debit card transaction, you generally swipe your card through the reader and choose credit â even though you are authorizing a debit (withdrawal) from your account, not a credit card transaction. To use your PIN instead of signing, select debit..
Series 406-NRS-RW NRS Flanged Gate Valves are used in commercial applications in potable water distribution systems. They feature an epoxy-coated, cast iron body with flanged connections, resilient-wedge disc, stainless steel non-rising stem and cast iron handwheel (or nut and valve key). Series 406-NRS-RW complies with AWWA C509 specifications.
The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired.The gate faces can form a wedge shape or they can be parallel.nother type of bonnet construction in a gate valve is pressure seal bonnet. This construction is adopted for valves for high pressure service, typically in excess of 2250 psi (15 MPa).