Keystone DUAL FLAPPER CHECK VALVES
006481-HW-KEYSTONE-081
Overview
The Flapper Valves F/Dual Flapper Check Valves are manufactured for today’s increasingly harsh drilling environment. All cages, flappers, & caps may be made from 17-4 bar stock to address the corrosive effects of hydrogen sulfide gas (H2S).
| Size | Weight (lbs) | O.D | I.D | Length Ea. | Stacked Length | Sub I.D/B | Sub I.D/A |
| 1’’ | 1.00 | .990’’ | .560’’ | 2.993’’ | 5.861’’ | 1.000’’ | 5.886’’ |
| 1 5/16’’ | 1.10 | 1.305’’ | .688’ | 2.375’’ | 4.625’’ | 1.313’’ | 4.650’’ |
| 1 1/2’’ | 1.22 | 1.490’’ | .810’’ | 2.720’’ | 5.380’’ | 1.500’’ | 5.405’’ |
| 1 11/16’ | 1.45 | 1.680’’ | 1.020’’ | 2.720’’ | 5.380’’ | 1.688’’ | 5.405’ |
| 1 7/8’’ /1F-2R | 1.6 | 1.900’’ | 1.000’’ | 3.940’’ | 7.880’’ | 1.910’’ | 7.905’ |
Keystone's float valves are precision manufactured from high-grade materials and perform optimally in drilling environments. We offer valves for all drilling applications. Keystone provides Certified, Pressure-Tested float valves. As a leading manufacturer of float valves, we know the severity of drilling with a reliable and trusted float valve; therefore, we offer certified float valves that are serialized. Additionally, we will provide certification of high-and-low pressure tests upon request.