High-Middle-Low Pressure Union
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High-Middle-Low Pressure Union
  
 

Figure 1502

With replaceable resilient nitrile-butadiene rubber seal ring and robust wall thickness design, this figure is used in high- pressure system. It is recommended for cement filling, fracturing, acidizing, testing and choke and kill line. Also, it may be used in Pressure less seal connection. Butt weld Sch. XXH is desired.

Specification and reference dimensions of union
Nominal pipe size
Total length
Pipck bore
Nut radius
Materials
Weight
Nut
Part
in
mm
in
mm
in
mm
in
mm
lbs
kgs
1 1/2
38.1
5-13/32
137
1/4
6.4
3-21/32
93
SF
SF
12
5.4
2
50.8
7
177.8
15/64
6
3-3/4
95.3
SF
SF
21
9.5
3
76.2
7-5/8
193.7
3/8
9.5
4-1/2
114.3
SF
SF
31
14.1
For figure 1502, 1500PSI NSCWP, test pressure at 22500PSI with blue nut and red parts		  
 

Figure 2002
Figure 2202

With replaceable resilient nitrile-butadiene rubber seal ring and robust wall thickness design, this figure is used in high- pressure system. It is recommended for cement filling, fracturing, acidizing, testing and choke and kill line. Also, it may be used in Pressure less seal connection. Butt weld Sch. XXH is desired.

Specification and reference dimensions of union
Nominal pipe size
Total length
Pipck bore
Nut radius
Materials
Weight
Nut
Part
in
mm
in
mm
in
mm
in
mm
lbs
kgs
2
50.8
7-3/8
187.32
15/64
6
3-11/16
93.66
SF
AS
22.5
49.6
 
 

Figure 602

With resilient nitrile-butadiene rubber seal ring, this figure is used for sealing and protecting the steel-to-steel match.
It is recommended for the connection of manifold and pipe and truck-mounted application and mud delivery. It may be used as pressure less seal union with butt weld Sch.80.

Specification and reference dimensions of union
Nominal pipe size
Total length
Pipck bore
Nut radius
Materials
Weight
in
mm
in
mm
in
mm
in
mm
Nut
Part
lbs
kgs
1
25.4
3-17/32
89.7
1/4
6.4
2-5/16
58.75
SF
SF
3.5
1.6
2
50.8
5-1/4
133.3
1/4
6.4
3-9/16
90.5
SF
SF
13.25
5.9
3
76.2
6-3/8
161.92
3/8
9.5
4-5/8
117.5
SF
SF
21
9.5
4
101.8
8-1/16
208
3/8
9.5
5-1/4
133.4
SF
SF
33
15
For figure 602, 6000PSI NSCWP, test pressure at 9000PSI with black nut and orange parts		  
 

Figure 1002

Resilient nitrile-butadiene rubber seal ring is mounted.
It is recommended for cement filling, fracturing, acidizing, testing and choke and kill line. It is designed for high-pressure systems including truck-mounted system. Also, it may be used as pressure less seal union. Butt weld Sch. 160 or XXH is desired.

Specification and reference dimensions of union
Nominal pipe size
Total length
Pipck bore
Nut radius
Materials
Weight
1
25.4
3-1/2
88.9
1/4
6.4
2-1/4
57.2
SF
SF
3.5
1.6
2
50.8
5-3/16
131.8
1/4
6.4
3-11/16
93.7
SF
SF
13.25
5.9
3
76.2
6-3/8
161.9
3/8
9.5
4-3/8
117.5
SF
SF
21
9.5
4
101.6
8-1/16
204.8
3/8
9.5
5-1/4
133.4
SF
SF
39.5
17.9
5
127
6-4/5
172.7
6
152.4
SF
SF
61.67
28
6
152.4
7-1/16
179.4
7-1/4
184.2
SF
SF
70.84
32
For figure 1002, 10000PSI NSCWP, test pressure at 15000PSI with red nut and blue parts Figure #1002 union may also be used in applications with H2S and other acid gases.
 
 

Figure 1003

With an spheric seat, the union allows a deviation by 7-1/2o from the center or angle adjustment with a total deviation capacity of 15o. In addition to the steel-to-steel match, the nitrile-butadiene rubber O-ring ensures air-tightness in connection at any deflected position.
It is recommended for the connection of high-pressure lines when alignment is impossible. The product may be used in applications with air, water, oil, mud or gas.

Specification and reference dimensions of union
Nominal pipe size
Connection
Total length
Nut radius
Materials
Weight
Nut
Part
in
mm
in
mm
in
mm
lbs
kgs
3
76.2
NPT
9-1/8
231.8
4-7/8
123.8
SC
AS
45
99.2
3
76.2
SCH160
8-7/8
225.4
4-7/8
123.8
SC
AS
47.5
104.7
3
76.2
XXHVY
9-1/8
231.8
4-7/8
123.8
SC
AS
48.5
106.9
4
101.6
NPT
10-15/16
277.8
5-3/4
146
SF
SF
72
158.7
4
101.6
SCH160
10-11/16
271.5
5-3/4
146
SF
AS
76
167.5
4
101.6
XXHVY
10-15/16
277.8
5-3/4
146
SF
AS
78
172
5
127
SCH160
10-3/4
273.1
5-3/4
146
SF
AS
74
163
5
127
XXHVY
10-15/16
277.8
3/4
146
SF
AS
76.5
168.7
For figure 1003, 10000PSI NSCWP(7500PSI NSCWP, 4in, 5in) with black nut and green parts 		 
 

Figure 100

High pressure union is forged and made of high strength alloy steel with imported world-class technology. Strict heat treatment ensures uniform metallographic structure and bearing capacity in the connector. The material used fully comply with ASTM and AISI of USA, and the technical indices of the product with API Spec 16C standard. The product is tight and reliable, and provided easy mounting and dismantling and good exchangeability. The connector of product allows connection for pipeline thread, oil tube thread and butt weld or pressure less seal end.
The connecting surface of precise linear seal ensures reliable pressure sealing. Application is recommended for low-pressure mainflod and operating pressure at maximum 1000 Psi.

Specification and reference dimensions of union
Nominal pipe size
Total length
Nut radius
Materials
Weight
Nut
Part
in
mm
in
mm
in
mm
SF
SF
lbs
kgs
2
50.8
3-5/8
92.1
2-15/16
74.6
SF
SF
5.25
2.4
2-1/2
63.8
4-1/4
108
3-5/8
92.1
SF
SF
8
3.6
3
76.2
4-15/16
125.4
4-1/16
103.2
SF
SF
14
6.4
4
101.6
5-15/16
150.8
4-25/32
121.4
SF
SF
23
10.4
6
152.4
6-5/8
168.3
6-7/16
163.5
SF
SF
44.5
20.2
8
203.2
7-1/4
184.2
7-11/16
195.3
SF
SF
61
27.7
For figure 100,1000PSI NSCWP, test pressure at 1500PSI with black nut and yellow parts.		  
 

Figure 200

High pressure union is forged and made of high strength alloy steel with imported world-class technology. Strict heat treatment ensures uniform metallographic structure and bearing capacity in the connector. The material used fully comply with ASTM and AISI of USA, and the technical indices of the product with API Spec 16C standard. The product is tight and reliable, and provided easy mounting and dismantling and good exchangeability. The connector of product allows connection for pipeline thread, oil tube thread and butt weld or pressure less seal end. With compact construction, this union is widely used on low-pressure kill line and application of air, water,oil or steam with medium pressure. Butt weld sch40 is desired for the applicable figure Specification and reference dimensions of union.

Specification and reference dimensions of union
Nominal pipe size
Total length
Nut radius
Materials
Weight
Nut
Part
in
mm
in
mm
in
mm
lbs
kgs
1
25.4
2-11/16
68.3
1-15/16
49.2
SC/SF
CDB/SF
1.75
0.8
1-1/4
31.7
2-7/8
73
2-3/8
60.3
SF
SF
2.37
1.1
1-1/2
38.1
2-7/8
73
2-3/8
60.3
SF
SF
2.37
1.1
2
50.8
3-5/16
84.1
2-29/32
73.8
SF
SF
2.25
2.4
2-1/2
63.8
4-1/16
103.2
3-11/16
93.7
SF
SF
10
4.5
3
76.2
4-3/8
111.1
3-7/8
98.4
SF
SF
15.25
6.9
4
101.6
4-13/16
122.2
5
127
SF
SF
20
9.1
6
152.4
6-5/8
168.3
6-7/16
163.5
SF
SF
44.5
20.2
For figure 200,2000PSI NSCWP, test pressure at 3000PSI with blue nut and gray parts. 		 
 

Figure 206

O-shape rubber ring is mounted on the seal surface of the male connector for better sealing. Butt weld Sch.40 is desired for the applicable figure.
It is recommended for connection of manifold and pipes and for applications with negative pressure and corrosion.

Specification and reference dimensions of union
Nominal pipe size
Total length
Nut radius
Materials
Weight
Nut
Part
in
mm
in
mm
in
mm
lbs
kgs
1
25.4
2-11/16
68.3
1-15/16
49.2
SC/SF
CDB/SF
1.75
0.8
1-1/2
38.1
2-7/8
73
2-3/8
60.3
SF
SF
2.37
1.1
2
50.8
3-5/16
84.1
2-29/32
73.8
SF
SF
5.25
1.1
2-1/2
63.5
4-1/16
103.2
3-11/16
93.7
SF
SF
10
2.4
3
76.2
4-3/8
111.1
3-7/8
98.4
SF
SF
15.25
4.5
4
101.6
4-13/16
122.2
5
127
SF
SF
20
6.9
6
152.4
6-5/8
168.3
6-7/16
163.5
SF
SF
44.5
9.1
8
203.2
7-1/4
184.2
7-11/16
195.3
SF
SF
61
For figure 206,2000PSI NSCWP, test pressure at 3000PSI with blue nut and gray parts.		  
 

Figure 207 Shutoff Head

O-shape nitrile-butadiene rubber ring is mounted on the shutoff head of the union for effective sealing. The thread connector is exchangeable with those Figures 200 and 206. butt weld Sch40 is desired for the applicable figure.

Specification and reference dimensions of union
Nominal pipe size
Total length
Nut radius
Materials
Weight
Nut
Part
in
mm
in
mm
in
mm
lbs
kgs
3
76.2
3-3/4
95.25
2-7/8
73.03
SC
SF
9.8
4.45
4
101.6
4-5/16
109.54
3-19/32
91.28
SC
SF
16.25
7.37
6
152.4
5-13/16
147.64
4-31/32
126.2
SC
SF
38
17.24
For figure 207, 2000PSI NSCWP, test pressure at 3000PSI with blue nut and gray parts.		  
 

Figure 211

The insluotion design of the union connector removes the metal-to-metal contact in connection while the precisely fabricated wear-resistant compound elastomer provideds effective sealing. The replaceable O-shape seal assembly prolongs the service life of the union. It is recommended for application or needs involving electrolytic corrosion.

Specification and reference dimensions of union
Nominal pipe size
Total length
Nut radius
Materials
Weight
Nut
Part
in
mm
in
mm
in
mm
lbs
kgs
2
50.8
3-1/2
88.9
3-1/8
79.38
SF
SF
6.25
2.8
3
76.2
4-1/2
114.3
4
101.6
SF
SF
12.5
5.7
For figure 211, 2000PSI NSCWP, test pressure at 3000PSI with gray nut and light blue parts.		  
 

Figure 300

Precisely sealed bond surface ensures reliable pressure tightness. It is recommended for application with oil，mud，gas or air.

Specification and reference dimensions of union
Nominal pipe size
Total length
Nut radius
Materials
Weight
Nut
Part
in
mm
in
mm
in
mm
lbs
kgs
1
25.4
2-11/16
68.3
1-15/16
49.2
SC/SF
SF
1.75
0.8
2
50.8
3-5/16
84.1
2-29/32
73.8
SF
SF
5.25
2.4
For figure 300, 3000 PSI NSCWP, test pressure at 4500PSI with black nut and green parts.		  
 

Figure 400		  
Figure 402
The design of thick wall and robust is used with ring-sharp and tapered seal for easy centering and reliable sealing.
  Figure402，black nuts and connecting parts are used. Only the 2” type is available-with nitrile-butadiene rubber seal ring.
Specification and reference dimensions of union
Nominal pipe size
Total length
Pipck bore
Nut radius
Materials
Weight
in
mm
in
mm
in
mm
in
mm
lbs
kgs
2
50.8
5-3/16
131.8
1/4
6.4
3-9/16
90.5
SF
SF
11
5
3
76.2
6-1/4
158.8
3/8
9.5
4-3/16
106.4
SF
SF
19.25
8.7
4
101.6
8-1/8
206.4
3/8
9.5
5
127
SF
SF
32
14.5

For figure400, 4000 PSI NSCWP, test pressure at 6000PSI with black nut and red parts.		  
 

Figure 600

Main seal is provided by the bronze holder. It is recommended for use in the steam system and in the connection of manifold and pipe for production，drilling and well repair.

Specification and reference dimensions of union
Nominal pipe size
Total length
Pipck bore
Nut radius
Materials
Weight
in
mm
in
mm
in
mm
in
mm
lbs
kgs
1
25.4
3-17/32
89.7
1/4
6.4
2-5/16
58.7
SF
SF
3.5
1.6
2
50.8
6-1/4
158.8
3/16
4.8
3
95.3
SF
SF
15
6.8
For figure600, 6000 PSI NSCWP, test pressure at 9000PSI with black nut and silvery parts.		  
ADD：0907 SUITE, 1ST BUILDING, 19 CHUANGYE ST., TAIYUAN XUEFUYUAN ZONE, SHANXI ZONGGAISHIFAN ZONE, 030006, TAIYUAN, SHANXI, CHINA
TEL：0086-351-5600630, 5600631; E-mail: worgxp@sxyixing.com; CONTACT：MR GUO XIAOPING

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