XTQ1 RF Flexible Rubber Joint
Keywords:
Valve Encyclopedia
Category:
- Product Description
-
Overview
A coupling composed of rubber parts reinforced with fabric or other materials, paired with components such as parallel quick-connect fittings or metal flanges, used in piping systems for vibration isolation, noise reduction, and compensation for displacement.
Implementation standard
Product Standard: GB/T26121
Pressure Test: GB/T26121
Flange connection: GB/T9124.1
Model designation:
GB/T26121
JB/T308
Flexible rubber joint
Flexible rubber joint for bending and burning
Steel pipe flange
Flexible rubber joint
Valve Model Coding Method
Working principle
According to their performance characteristics, connectors are classified into standard connectors and special connectors.
·Standard connector: Suitable for conveying media with temperatures ranging from -15℃ to 80℃ and acid-alkali solutions with concentrations below 10%.
·Special fittings: Suitable for media with special performance requirements, such as oil resistance, heat resistance, cold resistance, ozone resistance, abrasion resistance, or chemical corrosion resistance.
·According to their structural forms, they are divided into six types: single-ball, double-ball, triple-ball, pump-intake ball, and elbow-type. Ball-type rubber joints are further categorized into three types: concentric and same-diameter, concentric and different-diameter, and eccentric and different-diameter.
·According to the form of flange sealing surfaces, they are classified into raised-face flange seals and flat-face flange seals.
·By connection type, they are classified as flanged connections, threaded connections, and clamp-sleeve connections.
· Classified by working pressure: 0.25 MPa, 0.6 MPa, 1.0 MPa, 1.6 MPa, 2.5 MPa, 4.0 MPa;
· Classified by vacuum level: 32 kPa, 40 kPa, 53 kPa, 86 kPa, and 100 kPa.
Example
Double-bell rubber expansion joint with raised-face flange sealing connection, nominal size DN350mm, working pressure PN1.0MPa: XTQ2RF1.0-350
Main performance and parameters
Nominal pressure
PN10
PN16
MPa
Test pressure
Hull strength
0.9
1.5
High-pressure liquid sealing
0.66
1.1
Medium temperature
-10~80℃
Applicable medium
Qingshui et al.
Main component materials
Flange
High-quality carbon structural steel, stainless steel
Inner and outer rubber layers
Natural rubber, nitrile rubber, EPDM rubber, and others
Middle gel layer
Natural rubber, nitrile rubber, ethylene propylene diene monomer (EPDM) rubber, and others
Enhancement layer
Natural rubber, nitrile rubber, ethylene propylene diene monomer (EPDM) rubber, and others
Steel wire rope loop
Steel wire
Main external dimensions (unit: mm)
DN
L
L1
L2
L3
α1(°)
D
K
C
n×①
PN10
PN16
PN10
PN16
PN10
PN16
PN10
PN16
50
105
6
10
10
25
165
165
125
125
19
19
4×19
4×19
65
115
8
15
12
25
185
185
145
145
19
19
4×19
4×19
80
135
8
15
12
25
200
200
160
160
19
19
8×19
8×19
100
150
12
20
16
15
220
220
180
180
19
19
8×19
8×19
125
165
12
20
16
15
250
250
210
210
19
19
8×19
8×19
150
180
12
20
16
15
285
285
240
240
19
19
8×23
8×23
200
190
14
30
25
8
340
340
295
295
20
20
8×23
12×23
250
230
14
30
25
8
395
405
350
355
22
22
12×23
12×28
300
240
14
30
25
8
445
460
400
410
24.5
24.5
12×23
12×28
350
250
14
30
25
8
505
520
460
470
24.5
26.5
16×23
16×28
400
250
14
30
25
8
565
580
515
525
24.5
28
16×28
16 × 31
450
250
14
30
25
8
615
640
565
585
25.5
30
20×28
20×31
500
250
14
30
25
8
670
715
620
650
26.5
31.5
20×28
20×34
600
260
14
30
25
8
780
840
725
770
30
36
20×31
20×37
700
260
16
35
25
3
895
910
840
840
32.5
39.5
24 × 31
24 × 37
800
260
16
35
25
3
1015
1025
950
950
35
43
24 × 34
24 × 40
900
260
16
35
25
3
1115
1125
1050
1050
37.5
46.5
28 × 34
28 × 40
1000
260
16
35
25
3
1230
1255
1160
1170
40
50
28 × 37
28 × 43
1200
300
16
35
25
3
1455
1485
1380
1390
45
57
32×40
32 × 49
1400
300
25
35
25
<2
1675
1685
1590
1590
45
60
36 × 43
36 × 49
1600
350
25
35
25
<2
1915
1930
1820
1820
49
65
40×49
40×56
1800
400
25
35
25
<2
2115
2130
2020
2020
52
70
44 × 49
44 × 56
2000
450
25
35
25
<2
2325
One
2230
One
55
One
48 × 49
One
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Phone:+86-371-68122889
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