Appendix F

Description

Tables F-1 to F-4 contain mechanical data of gas lift valves available from two leading manufacturers.

Table F-1: CAMCO conventional gas lift valves
Valve Type	Valve Description	OD	A _b	Port Size	A _v	A _v/A _b	PPEF
		in	sq in	in	sq in
J-20	unbalanced, bellows charged	1 ?	0.77	3/16	0.029	0.038	0.040
1/4	0.051	0.066	0.071
5/16	0.079	0.103	0.115
3/8	0.113	0.147	0.172
7/16	0.154	0.200	0.250
1/2	0.200	0.260	0.351
JR-20	unbalanced bellows charged w. crossover	1 1/2 ?	0.77	1/8	0.013	0.017	0.017
3/16	0.029	0.038	0.040
1/4	0.051	0.066	0.071
CP-2 ^[*]	bellows charged, pilot operated, tubing flow only	1 1/2 ?	0.77	1/4	0.051	0.066	0.071
5/16	0.079	0.103	0.115
3/8	0.113	0.147	0.172
7/16	0.154	0.200	0.250
1/2	0.200	0.260	0.351
J-40	unbalanced, bellows charged	1 ?	0.31	1/8	0.013	0.042	0.044
3/16	0.029	0.094	0.104
1/4	0.051	0.165	0.198
5/16	0.079	0.255	0.342
3/8	0.113	0.365	0.575
JR-40	unb. bellows w. crossover	1 ?	0.31	1/8	0.013	0.042	0.044
3/16	0.029	0.094	0.104
J-46-0	throttling, spring loaded only	1 ?	0.31	1/8	0.013	0.042	0.044
3/16	0.029	0.094	0.104
1/4	0.051	0.165	0.198
BP-2 ^[*]	bellows charged, pilot operated, tubing flow only	1 ?	0.31	5/16	0.029	0.094	0.104
1/4	0.051	0.165	0.198
5/16	0.079	0.255	0.342
3/8	0.113	0.365	0.575
J-50	unbalanced, bellows charged	5/8 ?	0.12	1/8	0.013	0.108	0.121
5/32	0.020	0.167	0.200
13/64	0.037	0.308	0.445
1/4	0.051	0.425

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