How to get high quality pipe coupling?
Spojka potrubia connect two pipes or tubes together of equal or differing sizes . Pipe coupling mainly aims to solve the existing couplings easily generated due to fatigue fracture stress concentration problems.
Pipe coupling structure is: pipe ends with the inner wall of the coupling connected to tapered threads, couplings and tubing ends of the body with the same thread pitch flat with threaded connect. A single taper threaded connection with relief tubing outer thread root stress concentration characteristics, not easy to produce fatigue fracture, connecting effect. Effectively prevent oil well pipeline string broken off accidents.
A pipe coupling is any fitting or device used to join two or more pipes in such a way that continuity is maintained between them. The body of a pipe coupling is typically made of the same or similar materials as those used to construct the pipes it joins. They may be rigid or flexible depending on the amount of movement the pipe is subjected to and may per permanent or removable fixtures. A pipe coupling can be stepped or reduced in internal diameter to accept pipes of different sizes, be T or cross shaped to join more than two pipes, or angled to form bends. Pipe couplings may also include peripheral features or equipment such as inspection openings, flow meters, or ventily.
Väčšina inštalácií potrubia si vyžaduje spojenie alebo skrátenie niekoľkých dĺžok potrubia, aby sa uľahčili zmeny smeru a prekonávanie prekážok. To si vyžaduje pomerne rýchly spôsob spájania úsekov pri zachovaní celistvosti potrubia. Tieto spoje môžu byť svojou povahou trvalé alebo, ak je žiaduca možná demontáž, môžu mať odnímateľnú konštrukciu. Pri trvalých spojkách potrubia sa zvyčajne používa spájkovanie alebo tvrdé spájkovanie v prípade oceľových alebo medených rúr alebo lepidlá v prípade PVC rúr. Tieto trvalé spoje, ak sú správne nainštalované, poskytujú vynikajúcu tuhosť a tesniace vlastnosti, ak sa nepredpokladajú žiadne budúce zmeny v potrubí.
Removable pipe couplings are most often of a threaded design which allows them to be screwed onto the pipes to be joined. The most simple of these is a basic pipe section slightly larger than the pipes to be joined and cut with an internal thread. The ends of the pipes are also threaded, and the coupling is simply sealed with hemp or sealing tape and screwed onto both pipes. More complex removable pipe couplings are of a two-part design where one part is attached to each pipe and then screwed together to complete the joint. These types of couplings are often used on high pressure copper gas pipes and flexible hydraulic or pneumatic hoses.
A spojka potrubia sa často používa aj na uľahčenie zmeny trasy potrubia, prekonávanie prekážok a prestupovanie cez steny. Tieto spojky majú zvyčajne tvar kolena alebo U, ale môžu obsahovať niekoľko variantov s rôznymi uhlami vychýlenia. Na spájanie potrubí rozdielnych veľkostí sa používajú redukčné alebo odstupňované spojky s rôznymi priemermi koncov. Na spájanie rúr z rôznych materiálov sa môžu používať aj adaptérové tvarovky, ktoré majú samostatné koncové tvarovky vhodné pre oba materiály. Ak sa majú spojiť viac ako dve rúry, bežnými metódami na dosiahnutie spojov sú spojky v tvare Y, T alebo krížové spojky.
Potrubné spojky môžu obsahovať aj ďalšie prvky, ako sú kontrolné alebo údržbové prístupové body. Zvyčajne ide o skrutkovacie uzávery, ktoré umožňujú vizuálnu kontrolu alebo zasunutie tyčí používaných na odstránenie upchatia. Prietokomery a iné analytické príslušenstvo sú často zabudované do potrubnej spojky, aby sa uľahčila inštalácia. Potrubné spojky môžu obsahovať aj mechanizmy, ako sú uzatváracie a uvoľňovacie ventily.
Types of pipe couplings
Full Coupling fittings
What is a socket weld full coupling?
A socket weld full coupling, joins pipe two pipe or to a nipple etc. Used to join small bore plain end pipes where the pipe spec requirement is socket weld.
Product: Socket Weld Full coupling
Size : 1/2″NB TO 4″NB IN
Class : 3000 LBS, 6000 LBS, 9000 LBS
Type : Socket Weld (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT
Form : 45 Deg Elbow, 90 Deg Elbow, Forged Elbow, Threaded Elbow, Socket Weld Elbow.
MATERIALS :
Stainless Steel Socket Weld Full coupling – SS Socket Weld Full coupling
ASTM A182 F304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Duplex Stainless Steel Socket Weld Full coupling – Duplex SS Socket Weld Full coupling
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.
Carbon Steel Socket Weld Full coupling – CS Socket Weld Full coupling
ASTMA 105/A694/ Gr. F42/46/52/56/60/65/70
Low Temperature Carbon Steel Socket Weld Full coupling – LTCS Socket Weld Full coupling
A350 LF3/A350 LF2
Alloy Steel Socket Weld Full coupling – AS Socket Weld Full coupling
ASTM / ASME A/SA 182 F1/F5/F9/F11/F22/F91
Nickel Alloy Socket Weld Full coupling :
Štandardné: ASTM / ASME SB 564 / 160 / 472.
UNS 10276 (HASTELLOY C 276 Forged Elbow )
UNS 2200 (NICKEL 200 Forged Elbow ),
UNS 2201 (NICKEL 201 Forged Elbow ),
UNS 4400 (MONEL 400 Forged Elbow ),
UNS 8020 (ALLOY 20 Forged Elbow )
UNS 8825 INCONEL 825 Forged Elbow ),
UNS 6600 (INCONEL 600 Forged Elbow ),
UNS 6601 (INCONEL 601 Forged Elbow),
UNS 6625 (INCONEL 625 Forged Elbow),
Copper Alloy Socket Weld Full coupling
ASTM / ASME SB 61 / 62 / 151 / 152.
C 70600 (CU -NI- 90/10) – Cupro Nickel Forged Elbow
C 71500 (CU -NI- 70/30) – Copper Nickel Forged Elbow
UNS NO. C 92200, UNS NO. C 83600, UNS NO. UNS NO C 10100,
C 10200, C 10300, C 10800, C 12000, C 12200
| Product name : socket weld full coupling | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Poznámka:
Average of socket wall thickness around periphery shall be no less than listed values. The minimum values are permitted in localized areas.
Poznámka:
1 Average of socket wall thickness around periphery shall be no less than listed values. The minimum values are permitted in localized areas.
2 Upper and lower values for each size are the respective maximum and minimum dimensions.
What is threaded full coupling?
A threaded full coupling which means a steel pipe coupling has two ends both threaded. It could be a coupling with the thread only on the two ends, also could be a coupling with thread all over the length, they are all called full pipe coupling.
Štandardné: ASME / ANSI B16.11
Trieda: 3000 LBS, 6000 LBS, 9000 LBS
FORGED FITTINGS THREADED FULL COUPLING MATERIAL & GRADES :
Nerezová oceľ Threaded Full Coupling : ASTM A182 F304, F304L, F306, F316L, F304H, F309S, F309H, F310S, F310H, F316TI, F316H, F316LN, F317, F317L, F321, F321H, F11, F22, F91, F347, F347H, F904L, ASTM A312/A403 TP304, TP304L, TP316, TP316L
Carbon Steel Threaded Full Coupling : ASTM A105, A350 LF2, A106 Gr.B, A234 WPB
Alloy Steel Threaded Full Coupling : ASTM / ASME A182, ASTM / ASME A335 GR P 1, P 5, P 9, P 11, P 12, P 22, P 23, P 91, ASTM / ASME A691 GR 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9CR, 91
Duplex Steel Threaded Full Coupling : ASTM/ASME A182 / SA182, A790 / SA790 UNS No S31803, S32205
Super Duplex Threaded Full Coupling : ASTM/ASME A182 / SA182, A790 / SA790 UNS No S32750, S32950
Nickel Alloy Threaded Full Coupling : ASTM B336, ASME SB336, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II), Copper Nickel (Cupro-Nickel 90/10 & 70/30).
Low Temperature Carbon Steel Threaded Full Coupling : ASTM/ASME A420 SA/420 WPL3, WPL6
DIMENSIONS OF ASME B16.11 THREADED FULL COUPLING
Dimensions threaded Full couplings – NPS 1/2 to 4 – 3000 LBS – ASME B16.11
| NPS | Od konca do konca | Vonkajší priemer | Minimum Length of Thread | |
| A | D | B | J | |
| 1/2 | 48 | 28 | 10.9 | 13.6 |
| 3/4 | 51 | 35 | 12.7 | 13.9 |
| 1 | 60 | 44 | 14.7 | 17.3 |
| 1¼ | 67 | 57 | 17 | 18 |
| 1½ | 79 | 64 | 17.8 | 18.4 |
| 2 | 86 | 76 | 19 | 19.2 |
| 2½ | 92 | 92 | 23.6 | 28.9 |
| 3 | 108 | 108 | 25.9 | 30.5 |
| 4 | 121 | 140 | 27.7 | 33 |
Half Coupling fittings
What is a socket weld half coupling?
Stránka socket weld half coupling can be directly welded to the run pipe, to make a branch connection. Used to take a small bore pipe branch-off from a large bore pipe where the pipe spec requirement is socket weld in small bore size.
Product: Socket Weld Half Coupling
Size : 1/2″NB TO 4″NB IN
Class : 3000 LBS, 6000 LBS, 9000 LBS
Type : Socket Weld (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT
Form : 45 Deg Elbow, 90 Deg Elbow, Forged Elbow, Threaded Elbow, Socket Weld Elbow.
MATERIALS :
Stainless Steel Socket Weld Half Coupling – SS Socket Weld Half Coupling
ASTM A182 F304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Duplex Stainless Steel Socket Weld Half Coupling – Duplex SS Socket Weld Half Coupling
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.
Carbon Steel Socket Weld Half Coupling – CS Socket Weld Half Coupling
ASTMA 105/A694/ Gr. F42/46/52/56/60/65/70
Low Temperature Carbon Steel Socket Weld Half Coupling – LTCS Socket Weld Half Coupling
A350 LF3/A350 LF2
Alloy Steel Socket Weld Half Coupling – AS Socket Weld Half Coupling
ASTM / ASME A/SA 182 F1/F5/F9/F11/F22/F91
Nickel Alloy Socket Weld Half Coupling :
Štandardné: ASTM / ASME SB 564 / 160 / 472.
UNS 10276 (HASTELLOY C 276 Forged Elbow )
UNS 2200 (NICKEL 200 Forged Elbow ),
UNS 2201 (NICKEL 201 Forged Elbow ),
UNS 4400 (MONEL 400 Forged Elbow ),
UNS 8020 (ALLOY 20 Forged Elbow )
UNS 8825 INCONEL 825 Forged Elbow ),
UNS 6600 (INCONEL 600 Forged Elbow ),
UNS 6601 (INCONEL 601 Forged Elbow),
UNS 6625 (INCONEL 625 Forged Elbow),
Copper Alloy Socket Weld Half Coupling
ASTM / ASME SB 61 / 62 / 151 / 152.
C 70600 (CU -NI- 90/10) – Cupro Nickel Forged Elbow
C 71500 (CU -NI- 70/30) – Copper Nickel Forged Elbow
UNS NO. C 92200, UNS NO. C 83600, UNS NO. UNS NO C 10100,
C 10200, C 10300, C 10800, C 12000, C 12200
Dimensions of ASME B 16.11 Socket Weld Half Coupling
NPS 1/2 to 4 – 3000 LBS – ASME B 16.11
|
NPS
|
Zásuvka
Otvor
|
Hĺbka
Zásuvka
|
Otvor
diameter
|
Zásuvka
wall thickness
|
Dĺžky pokládky
|
|
|
B
|
J
|
D
|
C
|
Spojka
E
|
||
|
1/2
|
21.95
21.70
|
10
|
16.6
15
|
4.65
4.10
|
9.5
|
|
|
3/4
|
27.30
27.05
|
13
|
21.7
20.2
|
4.90
4.25
|
9.5
|
|
|
1
|
34.05
33.80
|
13
|
27.4
25.9
|
5.70
5.00
|
13
|
|
|
1¼
|
42.80
42.55
|
13
|
35.8
34.3
|
6.05
5.30
|
13
|
|
|
1½
|
48.90
48.65
|
13
|
41.7
40.1
|
6.35
5.55
|
13
|
|
|
2
|
61.35
61.10
|
16
|
53.5
51.7
|
6.95
6.05
|
19
|
|
|
2½
|
74.20
73.80
|
16
|
64.2
61.2
|
8.75
7.65
|
19
|
|
|
3
|
90.15
89.80
|
16
|
79.5
46.4
|
9.50
8.30
|
19
|
|
|
4
|
115.80
115.45
|
19
|
103.8
100.7
|
10.70
9.35
|
19
|
|
Dimensions Socket Weld Half couplings – NPS 1/2 to 2 – 6000 LBS – ASME B16.11
|
NPS
|
Zásuvka
Otvor
|
Hĺbka
Zásuvka
|
Otvor
diameter
|
Zásuvka
wall thickness
|
Dĺžky pokládky
|
|
|
B
|
J
|
D
|
C
|
Spojka
E
|
||
|
1/2
|
21.95
21.70
|
10
|
12.5
11
|
5.95
5.20
|
9.5
|
|
|
3/4
|
27.30
27.05
|
13
|
16.3
14.8
|
6.95
6.05
|
9.5
|
|
|
1
|
34.05
33.80
|
13
|
21.5
19.9
|
7.90
6.95
|
13
|
|
|
1¼
|
42.80
42.55
|
13
|
30.2
28.7
|
7.90
6.95
|
13
|
|
|
1½
|
48.90
48.65
|
13
|
34.7
33.2
|
8.90
7.80
|
13
|
|
|
2
|
61.35
61.10
|
16
|
43.6
42.1
|
10.90
9.50
|
19
|
|
What is threaded half coupling?
A threaded half coupling means a steel coupling which only has one thread end, another end of the coupling should be butt welding end. The thread end could be NPT or BSP standard thread. The butt welding end could be a plain end or a bevel end. it could be the connection between a pipe of male thread end and a pipe of no thread end.
MATERIALS:
Stainless Steel Threaded Half Coupling – SS Threaded Half Coupling
ASTM A182 F304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Duplex Stainless Steel Threaded Half Coupling – Duplex SS Threaded Half Coupling
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.
Carbon Steel Threaded Half Coupling – CS Threaded Half Coupling
ASTMA 105/A694/ Gr. F42/46/52/56/60/65/70
Low Temperature Carbon Steel Threaded Half Coupling – LTCS Threaded Half Coupling
A350 LF3/A350 LF2
Alloy Steel Threaded Half Coupling – AS Threaded Half Coupling
ASTM / ASME A/SA 182 F1/F5/F9/F11/F22/F91
Nickel Alloy Threaded Half Coupling :
Štandardné:
ASTM / ASME SB 564 / 160 / 472.
UNS 10276 (HASTELLOY C 276 Forged Elbow)
UNS 2200 (NICKEL 200 Forged Elbow ),
UNS 2201 (NICKEL 201 Forged Elbow ),
UNS 4400 (MONEL 400 Forged Elbow ),
UNS 8020 (ALLOY 20 Forged Elbow )
UNS 8825 INCONEL 825 Forged Elbow ),
UNS 6600 (INCONEL 600 Forged Elbow ),
UNS 6601 (INCONEL 601 Forged Elbow),
UNS 6625 (INCONEL 625 Forged Elbow),
Copper Alloy Threaded Half Coupling
ASTM / ASME SB 61 / 62 / 151 / 152.
C 70600 (CU -NI- 90/10) – Cupro Nickel Forged Elbow
C 71500 (CU -NI- 70/30) – Copper Nickel Forged Elbow
UNS NO. C 92200, UNS NO. C 83600, UNS NO. UNS NO C 10100,
C 10200, C 10300, C 10800, C 12000, C 12200
DIMENSIONS OF ASME B16.11 THREADED HALF COUPLING
Dimensions threaded Half couplings – NPS 1/2 to 4 – 3000 LBS – ASME B16.11
| NPS | Od konca do konca | Vonkajší priemer | Minimum Length of Thread | |
| A | D | B | J | |
| 1/2 | 48 | 28 | 10.9 | 13.6 |
| 3/4 | 51 | 35 | 12.7 | 13.9 |
| 1 | 60 | 44 | 14.7 | 17.3 |
| 1¼ | 67 | 57 | 17 | 18 |
| 1½ | 79 | 64 | 17.8 | 18.4 |
| 2 | 86 | 76 | 19 | 19.2 |
| 2½ | 92 | 92 | 23.6 | 28.9 |
| 3 | 108 | 108 | 25.9 | 30.5 |
| 4 | 121 | 140 | 27.7 | 33 |
Dimensions threaded Half couplings – NPS 1/2 to 4 – 6000 LBS – ASME B16.11
| NPS | Od konca do konca | Vonkajší priemer | Minimum Length of Thread | |
| A | D | B | J | |
| 1/2 | 48 | 38 | 10.9 | 13.6 |
| 3/4 | 51 | 44 | 12.7 | 13.9 |
| 1 | 60 | 57 | 14.7 | 17.3 |
| 1¼ | 67 | 64 | 17 | 18 |
| 1½ | 79 | 76 | 17.8 | 18.4 |
| 2 | 86 | 92 | 19 | 19.2 |
| 2½ | 92 | 108 | 23.6 | 28.9 |
| 3 | 108 | 127 | 25.9 | 30.5 |
| 4 | 121 | 159 | 27.7 | 33 |
Reducer Coupling
What is threaded reducing coupling?
A threaded reducing coupling is a connector used to screw two pieces of pipe together using threaded rings.
| Rozmer | : | ANSI B 16.11 |
| Špecifikácia | : | ASTM A 182 |
| Veľkosť | : | 1/4″ to 4″ |
| Class | : | 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| Range | : | Union, Tee, Elbow, Socket, Nipple, Coupling, Plug, Bushing, Weldolet, Threadolet, Sockolet. |
Types:
Materials and Grade:
Nerezová oceľ Threaded Reducing Coupling:
ASTM / ASME SA 403 GR WP “S” / “W” / ” WX”
304, 304L, 304H, 304N, 304LN, 309, 310H, 316, 316H, 317, 317L, 321, 321H, 347, 347H.
Duplex Steel Threaded Reducing Coupling:
Carbon Steel Threaded Reducing Coupling:
ASTM / ASME A 860 WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70
Alloy Steel Threaded Reducing Coupling:
Nickel Alloy Threaded Reducing Coupling:
Nickel Alloy 200 (UNS No. 2200), Nickel Alloy 201 (UNS No. 2201), Monel 400 (UNS No. 4400), Alloy 20 / 20 CB 3 (UNS No. 8020), Inconel 825 (UNS No. 8825), Inconel 600 (UNS No. 6600), Inconel 601 (UNS No. 6601), Inconel 625 (UNS No. 6625), Hastelloy C 276 / C22 / B2 (UNS No. 10276)
Copper Alloy Steel Threaded Reducing Coupling:
ASTM / ASME SB 111 UNS NO.C 10100 , C 10200 , C 10300 , C 10800 , C 12000, C 12200, C 70600 , C 71500
ASTM / ASME SB 466 UNS NO.C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30)
Coupling fittings are used for fluid conduits in which each end portion of two tubes to be connected is provided with a swaged-on adapter carrying the necessary means to connect or disconnect the tubes without disturbing the swaged-on adapter.
Our range of coupling fittings are available in aluminium, steel and bronze.
Pipe couplings are highly demanded in the pipe fitting market. Pipe couplings are fittings that help to extend or terminate pipe runs. These fittings are also used to change pipe size. Couplings extend a run by joining two lengths of pipe. They are known as reduced coupling if they are used to connect pipes of different sizes. Couplings are also known as repair couplings. These couplings are without stops or ridges and they can be fixed anywhere along the pipe length for preventing leak of any kind.
Material: ASTM A105, F304, F316, F304L, F316L, A182, F11, F22, and F91
Pressure: 2000LBS, 3000LBS, 6000LBS, 9000LBS
Size: from 1/4 to 4 inches
Standard: ANSI B16.9/B16.28 and MSS SP-43/SP-75
Connection ends: butt welded, threaded
Thread types: NU, EU, STC, LTC and BTC
Surface treatment:Shot blasted, rust-proof black oil
Packing: Plywood Case/ Pallet/ other
Hex Coupling
A Hex Coupling is a Pipe fitting which consists of a short piece of Hex pipe, provided with a female pipe thread at both end, for connecting two other fittings.
|
P |
ØD |
L |
F |
|
NPTF |
mm |
mm |
Hex |
|
1/8 |
8.6 |
20.6 |
9/16 |
|
1/4 |
11.4 |
30.2 |
3/4 |
|
3/8 |
15.0 |
33.3 |
7/8 |
|
1/2 |
18.5 |
39.6 |
1-1/16 |
|
3/4 |
23.9 |
41.1 |
1-5/16 |
|
1 |
29.7 |
50.8 |
1-5/8 |
Hex Reducing Coupling
A Hex Reducing Coupling is a Pipe fitting which consists of a short piece of Hex pipe, provided with a female pipe thread of different sizes at both end, for connecting two other fittings.
|
PP |
PP |
ØD |
L |
F |
|
NPTF |
NPTF |
inch |
inch |
Hex |
|
1/8 |
1/16 |
0.34 |
0.92 |
3/4 |
|
1/4 |
1/8 |
0.34 |
1.22 |
3/4 |
|
3/8 |
1/16 |
0.34 |
0.95 |
7/8 |
|
3/8 |
1/8 |
0.34 |
1.03 |
7/8 |
|
3/8 |
1/4 |
0.45 |
1.38 |
7/8 |
|
1/2 |
1/8 |
0.34 |
1.56 |
1-1/16 |
|
1/2 |
1/4 |
0.45 |
1.75 |
1-1/16 |
|
1/2 |
3/8 |
0.59 |
1.78 |
1-1/16 |
|
3/4 |
1/8 |
0.34 |
1.39 |
1-3/8 |
|
3/4 |
1/4 |
0.45 |
1.69 |
1-3/8 |
|
3/4 |
3/8 |
0.45 |
1.69 |
1-3/8 |
|
3/4 |
1/2 |
0.73 |
2.06 |
1-3/8 |
|
1 |
1/8 |
0.41 |
1.44 |
1-5/8 |
|
1 |
1/4 |
0.45 |
1.63 |
1-5/8 |
|
1 |
3/8 |
0.45 |
1.63 |
1-5/8 |
|
1 |
1/2 |
0.73 |
2.19 |
1-5/8 |
|
1 |
3/4 |
0.94 |
2.25 |
1-5/8 |
Zdroj: Čína Pipe Coupling Výrobca - Yaang Pipe Industry Co., Limited (www.ugsteelmill.com)
(Yaang Spoločnosť Pipe Industry je popredným výrobcom a dodávateľom výrobkov zo zliatiny niklu a nehrdzavejúcej ocele vrátane prírub z nehrdzavejúcej ocele Super Duplex, prírub z nehrdzavejúcej ocele, tvaroviek z nehrdzavejúcej ocele, rúr z nehrdzavejúcej ocele. Výrobky Yaang sa široko používajú v lodiarskom priemysle, jadrovej energetike, námornom strojárstve, ropnom, chemickom, banskom priemysle, pri čistení odpadových vôd, pri výrobe zemného plynu a tlakových nádob a v ďalších odvetviach.)
Ak chcete získať viac informácií o článku alebo sa s nami podeliť o svoj názor, kontaktujte nás na adrese [email protected]
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- https://www.ugsteelmill.com/difference-pipe-nipple-and-pipe-coupling.html
Odkazy:
- https://www.yaang.com/what-is-a-socket-weld-full-coupling.html
- https://www.yaang.com/what-is-a-socket-weld-half-coupling.html
- https://www.yaang.com/what-is-threaded-half-coupling.html
- https://www.yaang.com/what-is-threaded-reducing-coupling.html
- https://www.yaang.com/what-is-threaded-full-coupling.html
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