Du series rotary slips include DU ,DUL and SDU types .Their range is large and weight light .SDU type main features are large connecting areas and high strength , good abrasion resistance .
Design and manufacture by API SPEC 7k.
|
(n) model number
|
Kava size
|
4.1/2
|
|
DU
|
Drill pipe diameter
|
in
|
2.3/8
|
2.7/8
|
3.1/2
|
4
|
4.1/2
|
|
mm
|
60.3
|
73.0
|
88.9
|
101.6
|
114.3
|
|
DUL
|
Drill pipe diameter
|
in
|
2.3/8
|
2.7/8
|
3.1/2
|
4
|
4.1/2
|
|
mm
|
60.3
|
73.0
|
88.9
|
101.6
|
114.3
|
|
SDU
|
Drill pipe diameter
|
in
|
-
|
-
|
-
|
-
|
-
|
|
mm
|
-
|
-
|
-
|
-
|
-
|
|
(n) model number
|
Kava size
|
5.1/2
|
|
DU
|
Drill pipe diameter
|
in
|
3.1/2
|
4
|
4.1/2
|
5
|
5.1/2
|
|
mm
|
88.9
|
101.6
|
114.3
|
127
|
139.7
|
|
DUL
|
Drill pipe diameter
|
in
|
3.1/2
|
4
|
4.1/2
|
5
|
5.1/2
|
|
mm
|
88.9
|
101.6
|
114.3
|
127
|
139.7
|
|
SDU
|
Drill pipe diameter
|
in
|
3.1/2
|
4
|
4.1/2
|
5
|
5.1/2
|
|
mm
|
88.9
|
101.6
|
114.3
|
127
|
139.7
|
|
(n) model number
|
Kava size
|
7
|
|
DU
|
Drill pipe diameter
|
in
|
4.1/2
|
5
|
5.1/2
|
6.5/8
|
7
|
|
mm
|
114.3
|
127
|
139.7
|
168.3
|
177.8
|
|
DUL
|
Drill pipe diameter
|
in
|
-
|
-
|
-
|
-
|
-
|
|
mm
|
-
|
-
|
-
|
-
|
-
|
|
SDU
|
Drill pipe diameter
|
in
|
4.1/2
|
5
|
5.1/2
|
6.5/8
|
7
|
|
mm
|
114.3
|
127
|
139.7
|
168.3
|
177.8
|
|
