Drill Pipe Float Valves

Keep the fluids where they belong, not backed up into your drill string!

Construction - The cages are made from hi-tech alloys. Coated with Xylan® - the most successful fluoropolymer coating in the world that dramatically reduces corrosion and erosion.
Float Valve Installation - These float valves are easy to install. Simply lubricate the side seal rubbers and slide the float valve into the cavity of the recess of the float sub or drilled out drill collar.
Caution: Fill drill pipe regularly when going in the hole. Failure to do so can cause damage to the drill pipe and/or the float valves.

Float Valve Assemblies - Available Types

Model "F"
Plunger-Type Valve

The Model F plunger-type valve offers positive and instant shut-off. In normal drilling operations the Model F offers economy and durability.
The piston stops flow-back when making connections and keeps cuttings out of the drill string.

Model "FA"
Ported Plunger-Type Valve

The Model FA offers all of the standard features of the Model F float valve, with the added feature of a ported piston, which allows a fluid path through the center of the valve.
This feature allows for an automatic partial filling of the drill pipe during run in.

Standard Service
Model "F" and Model "FA"
1R, 1F2R, 2F3R 3F, 3 1/2IF, 4R, 4F, 5R, 5F6R

Hi-Temp Service / H2S Seals
Model "F"
1R, 1F2R, 2F3R 3F, 3 1/2IF, 4R, 4F, 5R, 5F6R

Model "FBP"
Integral Baffle Plate Valve
The Model FBP also offers all of the standard features of the Model F float valve, with the added feature of an integral baffle plate at the top of the float valve that is both heavy duty and shatterproof. For operations where a baffle plate is always used for instrumentation or fluid control, the integral baffle plate configuration offers an economical option. The Model FBP is available in three sizes: 3 1/2 IF, 4R, an 5F6R.

Model "G"
Full Flow Flapper-Type Valve
The Model G flapper-type valve features an investment cast flapper that is quick opening, allowing for full flow through the valve.
The Model G is designed for highly abrasive drilling fluids.

Model "GA" Flapper Full Flow Ported with Carbide Orifice
The Model GA is identical to the Model G, except for a carbide orifice that makes the flapper ported.
The Model GA flapper allows for differential pressure readings at the surface.

Standard Service
Model "G" and Model "GA"
1F2R, 2F3R, 3F, 3 1/2IF, 4R, 4F, 5R, 5F6R

Hi-Temp / H2S Seals
Model "G" and Model "GA"
1F2R, 2F3R, 3F, 3 1/2IF, 4R, 4F, 5R, 5F6R

Model "GC" Flapper Full Flow Automatic Fill
The Model GC is identical to the Model G, but adds on an automatic fill feature when going in the hole.
The Model GC helps prevent pressure surges that could cause formation breakdown.

Model "GCA" Full Flow Flapper with Carbide Orifice Valve
The Model GCA is identical to the Model GA, but adds the automatic fill feature.

Standard Service
Model "GC" Model "GCA"
2F3R, 3F, 3 1/2IF, 4R, 4F, 5R, 5F6R

Baffle Plates

Description	DPFV Size	Type	Weight
2 7/8" API Regular*	1F2R	Spider	.5 lb.
3 1/2" API Regular*	2F3R	Ring	.4 lb.
4 1/2" API Regular*	4R	Ring	.8 lb.
5 9/16" API Regular*	5R	Ring	1.3 lbs.
6 5/8" API Regular*	5F6R	Ring	1.5 lbs.
7 5/8" API Regular*	5F6R	Ring	1.7 lbs.
3 1/2" API Full Hole**	3F	Spider	.6 lb.
4 1/2" API Full Hole**	4F	Ring	.9 lb.
5 9/16" API Full Hole**	5F6R	Ring	1.5 lbs.
3 1/2" API Full Hole***	3F	Spider	.6 lb.
4 1/2" API Full Hole***	4F	Spider	.7 lb.
4 1/2" API Regular***	4R	Spider	.7 lb.
4 1/2" API Regular***	5R	Spider	.7 lb.
5 9/16" API Full Hole***	5F6R	Spider	1.0 lb.
6 5/8" API Regular***	5F6R	Spider	1.0 lb.
3 1/2" API Internal Flush***	3 1/2 IF	Spider	.6 lb.
2 7/8" API Internal Flush**	2F3R	Ring	.7 lb.
3 1/2" API Internal Flush**	3 1/2 IF	Ring	.72 lb.
4 1/2" API Internal Flush**	5R	Ring	1.3 lbs.
2 7/8" API Internal Flush**	2F3R	Spider	.7 lb.
4" API IF / 4 1/2" X H**	4F	Ring	1.0 lb.
*for use on Bit	**for use in Joint		***for use on Float

Specification Guide

Tool Joint Types	Sizes
Tool Joint Types	IR	IF2R	2F3R	3F	3 1/2IF
API Regular	2 3/8	2 7/8	3 1/2
Hughes or Reed Regular	2 3/8	2 7/8	3 1/2
Union Tool	2 3/8	2 7/8 3 1/2
Hughes or Reed Double Streamline		2 7/8 2 3/8	3 1/2	4 4 1/2*
API Full Hole		2 3/8	2 7/8	3 1/2*	4
Reed Acme Full Hole				3 1/2*
Hughes Acme Streamline		2 3/8	2 7/8	3 1/2*
Hughes Xtra Hole			2 7/8	3 1/2
Reed Semi-Internal Flush			2 7/8	3 1/2
API Internal Flush		2 3/8	2 7/8		3 1/2
Hydril Type "IF" (Int. Flush Ext. Upset)		2 3/8*	2 7/8*	3 1/2*
Hydril "EIU" (Ext. Int. Upset)				3 1/2
Hydril Type "F" (External Flush)	2 7/8 3 1/2*			4 1/2 5
Hughes Ext. Flush Acme Type		3 1/2	4 1/2
Hughes Ext. Flush Full-Hole Type				4 1/2
*Float sub in these sizes has smaller ID than standard joint tool.

Tool Joint Types	Sizes
Tool Joint Types	4R	4F	5R	5F6R	6F
API Regular	4 1/2		5 1/2-5 9/16*	6 5/8-7 5/8‡	8 5/8
Hughes or Reed Regular	4 1/2		5 1/2-5 9/16	6 5/8
Union Tool		4 1/2	5 1/2-5 9/16*	6 5/8‡
Hughes or Reed Double Streamline		5	5 1/2-5 9/16
API Full Hole	4 1/2	4 1/2*		5 1/2-5 9/16*	6 5/8*
Reed Acme Full Hole		4 1/2*		5 1/2-5 9/16*
Hughes Acme Streamline		4 1/2*		5 1/2-5 9/16*
Hughes Xtra Hole		4 1/2*	5
Reed Semi-Internal Flush		4 1/2*	5
API Internal Flush		4	4 1/2*
Hydril Type "IF" (Int. Flush Ext. Upset)			4 1/2	5
Hydril "EIU" (Ext. Int. Upset)	4	4 1/2		5 1/2-5 9/16*	6 5/8
Hydril Type "F" (External Flush)	5 1/2-5 9/16		6 5/8
Hughes Ext. Flush Acme Type	5 1/2-5 9/16		6 5/8
Hughes Ext. Flush Full Hole Type
Float sub in these sizes has smaller ID than standard joint tool. ‡interchangeable*

Bit and Shank Sizes

Bit Sizes (inches)

3 1/4

3 3/8

4 1/2

4 3/4

5 1/2

6 1/8

6 1/4

6 1/2

6 3/4

7 7/8

8 1/4

Std. API Pin Shank Size (inches)

2 3/8

2 7/8

3 1/2

4 1/2

Bit Sizes (inches)

8 1/2

8 3/4

9 1/2

9 3/4

10 1/2

12 1/4

13 1/2

14 3/4

17 1/2

20 / 24 / 25

Std. API Pin Shank Size (inches)

4 1/2

6 5/8

7 5/8

Drill Pipe Float Valve Subs

API Regular Threads - Box or Pin
Size	O.D.	I.D.	Length	Valve
2 3/8"	3 1/8"	1"	18"	1R
2 7/8"	3 3/4"	1 1/4"	20"	1F2R
3 1/2"	4 1/4"	1 1/2"	20"	2F3R
4 1/2"	5 1/2"	2 1/4"	24"	4R
5 1/2"	6 3/4"	2 3/4"	28"	5R
6 5/8"	7 3/4"	3 1/2"	30"	5F6R
7 5/8"	8 7/8"	4"	30"	5F6R
8 3/8"	10"	4 3/4"	30"	6F

API Full Hole - Box or Pin
Size	O.D.	I.D.	Length	Valve
2 7/8"	4 1/4"	2 1/8"	20"	2F3R
3 1/2"	4 5/8"	2 7/16"	24"	3F
4"	5 1/4"	2 13/16"	24"	3 1/2F
4 1/2"	5 3/4"	3"	28"	4F
5 1/2"	7"	4"	30"	5F6R
6 5/8"	8"	5	30"	6F

API IF Internal Flush - Box or Pin
Size	O.D.	I.D.	Length	Valve
2 3/8"	4 1/4"	1 3/4"	18"	1F2R
2 7/8"	4 1/8"	2 1/8"	20"	2F3R
3 1/2"	4 3/4"	2 11/16"	24"	3 1/2IF
4"	5 3/4"	3 1/4"	28"	4F
4 1/2"	6 1/8"	3 3/4"	28"	5R
5 1/2"	7 3/8"	4 13/16"	30"	5F6R
6 3/8"	8 3/4"	5 29/32"	30"	6F

Dimensional Data

Model G I.D. of Valve	Model F I.D. of Valve	Size Valve	D = Diameter of Valve	R = (D Plus 1/32) Diameter of Recess for Valve	L = Length of Valve	T* = Diameter of Recess for TOTCO Spider
N/A	1	1R	1 21/32	1 11/16	5 7/8	1 5/16
1	1 1/4	1F2R	1 29/32	1 15/16	6 1/4	1 1/2
1 1/4	1 9/16	2F3R	2 13/32	2 7/16	6 1/2	1 29/32
1 5/8	1 7/8	3F	2 13/16	2 27/32	10	2 7/16
1 5/8	1 7/8	3 1/2IF	3 1/8	3 5/32	10	2 11/16
1 31/32	2 5/16	4R	3 15/32	3 1/2	8 5/16	2 15/16
2 3/16	2 1/2	4F	3 21/32	3 11/16	12	3 1/4
2 1/4	2 3/4	5R	3 7/8	3 29/32	9 3/4	3 3/8
2 7/8	3 1/4	5F6R	4 25/32	4 13/16	11 3/4	4 9/32
	4 1/18	6F	5 11/16	5 23/32	14 5/8	5 3/16
*If this diameter is the same or smaller than standard tool joint ID, disregard it.

Flapper Style and Piston Style diameter and length