Keystone DUAL FLAPPER CHECK VALVES
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NG # 006481-HW-KEYSTONE-081
Manufactured by:
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).
Specification
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’
Description
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.