Heavy Weight Drill Pipe (HWDP) Standard HWDP is manufactured with solid bar or green tube. There is extra long EU tool joints on the two ends and long EU in the middle part, with the function of drill collar and drill pipe. Since the transition from the drill collar to the drill pipe section drastic changes , bending stress concentrates on the drill pipes. Therefore HWDP between drill collar and drill pipe can ease the section changes, reduce the stress concentration, so as to reduce the drilling accident. In addition, compared with the drill collar, HWDP have many advantages such as easy fishing, shorten operation time, easy transportation, and keep the direction of direction well. In condition of hook load and same drilling pressure, the use of HWDP can improve the ability of deep drilling rig. Thus HWDP has been widely used in vertical and inclined well.
Heavy Weight Drill Pipe
Heavy-duty drip pipes are specialized components of **micro-irrigation systems**, designed to withstand challenging agricultural and environmental conditions. They distribute water directly to the root zone of plants, optimizing water usage and ensuring plant health.
These pipes are particularly suited for heavy-duty applications such as high-yield farms, orchards, vineyards, and large-scale agricultural projects. They provide consistent water flow even under fluctuating pressure conditions.Features 1. High Strength & Durability:
Made from premium HDPE/LDPE materials for excellent toughness.
Withstands high pressures, rough handling, and exposure to sunlight and chemicals.
2. Uniform Water Distribution:
Equipped with inline emitters (pre-installed) or drippers for consistent flow.
Emitters have anti-clogging mechanisms to work efficiently even with hard water or fertilizer-laden water.
3. UV Resistance:
Pipes are UV-stabilized to prevent degradation when exposed to sunlight, ensuring long life.
4. Flexibility & Easy Installation:
Lightweight and flexible for quick installation and layout adjustments.
5. Chemical Resistance:
Compatible with fertilizers and pesticides commonly used in agriculture.
| Designation |
Pipe body |
Tool joint |
| Nominal size |
Nominal weight |
Gr |
Upset type |
OD Ddp (mm) |
Wall thickness t(mm) |
RSC type |
OD of PIN AND BOX (mm) |
ID of Pin (mm) |
Bevel Dia. of Pin and Box Shoulder DF (mm) |
Pin tong LPB (mm) |
Box tong LPB (mm) |
OD of upset neck DTE/DPE (mm) |
Torsion Ration, Pin to Drill pipe body |
| 2 3/8 |
6.65 |
E |
EU |
60.32 |
7.11 |
NC26 |
85.7 |
45.45 |
82.95 |
177.8 |
203.2 |
65.09 |
1.1 |
| X |
85.7 |
45.45 |
82.95 |
177.8 |
203.2 |
65.09 |
0.87 |
| G |
85.7 |
45.45 |
82.95 |
177.8 |
203.2 |
65.09 |
0.79 |
| 2 7/8 |
10.4 |
E |
EU |
73.02 |
9.19 |
NC31 |
104.8 |
53.98 |
100.41 |
177.8 |
228.6 |
80.96 |
1.03 |
| X |
104.8 |
50.8 |
100.41 |
177.8 |
228.6 |
80.96 |
0.9 |
| G |
111.1 |
50.8 |
100.41 |
177.8 |
228.6 |
80.96 |
0.82 |
| S |
|
41.28 |
100.41 |
177.8 |
228.6 |
80.96 |
0.82 |
| 3 1/2 |
13.3 |
E |
EU |
88.9 |
9.35 |
NC38 |
120.7 |
68.26 |
116.28 |
203.2 |
266.7 |
98.43 |
0.98 |
| X |
127 |
65.09 |
116.28 |
203.2 |
266.7 |
98.43 |
0.87 |
| G |
127 |
61.91 |
116.28 |
203.2 |
266.7 |
98.43 |
0.86 |
| S |
127 |
53.98 |
116.28 |
203.2 |
266.7 |
98.43 |
0.8 |
| E |
11.4 |
|
127 |
65.09 |
116.28 |
203.2 |
266.7 |
98.43 |
0.97 |
| X |
127 |
61.91 |
116.28 |
203.2 |
266.7 |
98.43 |
0.83 |
| G |
127 |
53.98 |
116.28 |
203.2 |
266.7 |
98.43 |
0.9 |
| 15.5 |
S |
NC40 |
139.7 |
57.15 |
127.4 |
177.8 |
254 |
98.43 |
0.87 |
| 4 |
14 |
E |
|
101.6 |
8.38 |
133.4 |
71.44 |
127.4 |
177.8 |
254 |
106.36 |
1.01 |
| X |
133.4 |
68.26 |
127.4 |
177.8 |
254 |
106.36 |
0.86 |
| G |
139.7 |
61.91 |
127.4 |
177.8 |
254 |
106.36 |
0.93 |
| S |
139.7 |
50.8 |
127.4 |
177.8 |
254 |
106.36 |
0.87 |
| E |
EU |
NC46 |
152.4 |
82.55 |
145.26 |
177.8 |
254 |
114.3 |
1.43 |
| X |
152.4 |
82.55 |
145.26 |
177.8 |
254 |
114.3 |
1.13 |
| G |
152.4 |
82.55 |
145.26 |
177.8 |
254 |
114.3 |
1.02 |
| S |
152.4 |
76.2 |
145.26 |
177.8 |
254 |
114.3 |
0.94 |
| 4 1/2 |
16.6 |
E |
IEU |
114.3 |
8.56 |
158.8 |
82.55 |
145.26 |
177.8 |
254 |
119.06 |
1.09 |
| X |
158.8 |
72.6 |
145.26 |
177.8 |
254 |
119.06 |
1.01 |
| G |
158.8 |
76.2 |
145.26 |
177.8 |
254 |
119.06 |
0.91 |
| S |
158.8 |
69.85 |
145.26 |
177.8 |
254 |
119.06 |
0.81 |
| 20 |
E |
10.92 |
158.75 |
76.2 |
145.3 |
177.8 |
254 |
119.07 |
1.07 |
| X |
158.75 |
69.85 |
145.3 |
177.8 |
254 |
119.07 |
0.96 |
| G |
158.75 |
63.5 |
145.3 |
177.8 |
254 |
119.07 |
0.96 |
| S |
158.75 |
57.15 |
145.3 |
177.8 |
254 |
119.07 |
0.81 |
| 16.6 |
E |
EU |
8.56 |
NC50 |
168.28 |
95.25 |
154 |
177.8 |
254 |
127 |
1.23 |
| X |
168.28 |
95.25 |
154 |
177.8 |
254 |
127 |
0.97 |
| G |
168.28 |
95.25 |
154 |
177.8 |
254 |
127 |
0.88 |
| S |
168.28 |
88.9 |
154 |
177.8 |
254 |
127 |
0.81 |
| 20 |
E |
10.92 |
168.28 |
92.08 |
154 |
177.8 |
254 |
127 |
1.07 |
| X |
168.28 |
88.9 |
154 |
177.8 |
254 |
127 |
0.96 |
| G |
168.28 |
88.9 |
154 |
177.8 |
254 |
127 |
0.96 |
| S |
168.28 |
76.2 |
154 |
177.8 |
254 |
127 |
0.81 |
| 5 |
19.5 |
E |
IEU |
127 |
9.19 |
168.28 |
95.25 |
154 |
177.8 |
254 |
130.18 |
1.23 |
| X |
168.28 |
88.9 |
154 |
177.8 |
254 |
130.18 |
0.97 |
| G |
168.28 |
82.5 |
154 |
177.8 |
254 |
130.18 |
0.88 |
| S |
168.28 |
69.85 |
154 |
177.8 |
254 |
130.18 |
0.81 |
| 25.6 |
E |
12.7 |
168.28 |
88.9 |
154 |
177.8 |
254 |
130.18 |
1.02 |
| X |
168.28 |
76.2 |
154 |
177.8 |
254 |
130.18 |
0.96 |
| G |
168.28 |
69.85 |
154 |
177.8 |
254 |
130.18 |
0.86 |
| S |
|
|
|
|
|
|
|
| 19.5 |
E |
9.19 |
5 1/2FH |
177.8 |
95.25 |
170.7 |
203.2 |
254 |
130.18 |
1.53 |
| X |
177.8 |
95.25 |
170.7 |
203.2 |
254 |
130.18 |
1.21 |
| G |
177.8 |
95.25 |
170.7 |
203.2 |
254 |
130.18 |
1.09 |
| S |
184.15 |
88.9 |
170.7 |
203.2 |
254 |
130.18 |
0.98 |
| 25.6 |
E |
12.7 |
177.8 |
88.9 |
170.7 |
203.2 |
254 |
130.18 |
1.21 |
| X |
177.8 |
88.9 |
170.7 |
203.2 |
254 |
130.18 |
0.95 |
| G |
184.15 |
88.9 |
170.7 |
203.2 |
254 |
130.18 |
0.99 |
| S |
184.15 |
82.55 |
170.7 |
203.2 |
254 |
130.18 |
0.83 |
| 5 1/2 |
21.9 |
E |
139.7 |
9.17 |
177.8 |
101.6 |
170.7 |
203.2 |
254 |
144.46 |
1.11 |
| X |
177.8 |
95.25 |
170.7 |
203.2 |
254 |
144.46 |
0.98 |
| G |
184.15 |
88.9 |
170.7 |
203.2 |
254 |
144.46 |
1.02 |
| S |
190.5 |
76.2 |
180.2 |
203.2 |
254 |
144.46 |
0.96 |
| 24.7 |
E |
10.54 |
177.8 |
101.6 |
170.7 |
203.2 |
254 |
144.46 |
0.99 |
| X |
184.15 |
88.9 |
170.7 |
203.2 |
254 |
144.46 |
1.01 |
| G |
184.15 |
88.9 |
170.7 |
203.2 |
254 |
144.46 |
0.92 |
| S |
190.5 |
76.2 |
180.2 |
203.2 |
254 |
144.46 |
0.86 |
| 6 5/8 |
25.2 |
E |
168.3 |
8.38 |
65/8FH |
203.2 |
127 |
195.7 |
203.2 |
279.4 |
176.21 |
1.04 |
| X |
203.2 |
127 |
195.7 |
203.2 |
279.4 |
176.21 |
0.82 |
| G |
209.55 |
120.65 |
195.7 |
203.2 |
279.4 |
176.21 |
0.87 |
| S |
215.9 |
107.95 |
195.7 |
203.2 |
279.4 |
176.21 |
0.86 |
| 27.7 |
E |
9.19 |
203.2 |
127 |
195.7 |
203.2 |
279.4 |
176.21 |
0.96 |
| X |
209.55 |
120.65 |
195.7 |
203.2 |
279.4 |
176.21 |
0.89 |
| G |
209.55 |
120.65 |
195.7 |
203.2 |
279.4 |
176.21 |
0.81 |
| S |
215.9 |
107.95 |
195.7 |
203.2 |
279.4 |
176.21 |
0.8 |
