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Office address: No. 1-2926, Chaichang Village East (United Airlines Building), Yongledian Town, Tongzhou District, Beijing

Production Base: No.66 Tiangao Road, Anci District, Langfang City, Hebei Province

NM type internal expansion sealing element

The NM type internal expansion sealing element consists of a sealing ring, a fan-shaped support block, and support angles. It is mainly used for pressure testing of steel pipes in hydraulic testing machines.

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Classification:

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Performance and Purpose:

It is made up of sealing ring, fan-shaped supporting blocks and fan-shaped angles. It is mainly used in the pressure test of steel pipe by hydrostatic testing machine. As it is designed to test steel pipe from its inner diameter, when testing, the sealing ring will expand to enclose the pipe inner diameter to achieve the purpose of sealing. Its test head is smaller than type D or C and production cost is lower as well. It is applicable to the pressure testing of casing, tubing, natural gas pipe and other steel pipe.

NM型内胀密封元件是由密封圈、扇形支撑块和支撑角组成的密封元件。主要用于水压试验机对钢管的耐压试验。由于NM型内胀密封元件是从钢管的内径对钢管进行密封试验，试压时密封圈向外侧膨胀与管内壁接触并密封，故其试压头比D型或C型小巧，制造成本低。本产品适用于水压试验机对套管、油管、天然气输送等钢管进行水压试验。

Advantage:

Lip Optimization: under peripheral pressure, the lip and groove surface fit more closely, and the higher the pressure, the better the lip sealing.

唇边优化，在外周受压下，是唇边与沟槽面贴合更紧密，压力越大唇边密封越好

The fan-shaped supporters, in the premise of increasing the strength of the sealing ring, can shrink and expand in radial direction with the sealing ring.

专业设计扇形支撑块，在增加密封圈强度的前提下，能随密封圈在径向方向收缩、胀大

Working conditions:

According with several standards about hydraulic testing requirements: such as API 5CT/ISO11960:2011, GB/T9711.1-2011, GB/T9711.2-2011, etc. for Petroleum and natural gas industries—Steel pipes for casing or tubing; GB8163 - 2008 for seamless steel tubes; GB/T3092-2008 for welded steel pipes.

符合API 5CT/ISO11960:2011、GB/T9711.1-2011、GB/T9711.2-2011等石油天然气工业——油气井套管或油管用钢管；GB8163-2008无缝钢管；GB/T3092-2008焊接钢管等标准水压试验条件。

Working pressure: ≤ 60 M Pa

Working temperature: -20℃～+80℃

Working medium: water, emulsion, hydraulic oil

Material: Polyurethane

序号 No.	规格型号 Type	适用钢管内径 Suitable Inner Dia. of Pipe	密封圈尺寸 Sealing dimension	密封沟槽尺寸 Groove dimension			订货号 Order No.
序号 No.	规格型号 Type	适用钢管内径 Suitable Inner Dia. of Pipe	d₀	d（h9)	D	H^+0.5	订货号 Order No.
1	NM87	97-103	41	41	92	47	ZN116
2	NM91	101-108	41	41	96	47	ZN114
3	NM119	129-136	50	50	124	52	ZN159
4	NM128	138-145	40	40	133	58.5	ZN155
5	NM137	147-154	60	60	142	52	ZN163
6	NM141	151-158	60	60	146	52	ZN161
7	NM147	157-164	73	73	152	52	ZN165
8	NM153	163-170	73	73	158	52	ZN164
9	NM157	167-175	94	94	162	52	ZN110
10	NM163	173-180	94	94	168	52	ZN111
11	NM168	178-185	75	75	173	53	ZN172
12	NM179	189-196	75	75	184	53	ZN160
13	NM184	194-202	90	90	189	53	ZN170
14	NM189	200-208	90	90	194	53	ZN188
15	NM193	204-213	110	110	198	52	ZN166
16	NM197.5	209-218	140.5	140.5	203	38	ZN101
17	NM214	226-234	120	120	220	52	ZN179
18	NM217	229-237	136	136	223	52	ZN103
19	NM220	232-240	144	144	226	47	ZN130
20	NM222	234-242	110	110	228	53	ZN162
21	NM233	245-253	144	144	239	53	ZN171
22	NM243	255-263	140	140	249	52	ZN182
23	NM270	282-290	180	180	276	52	ZN168
24	NM280	292-300	190	190	286	52	ZN169
25	NM292	304-313	190	190	298	52	ZN186
26	NM310	322-332	227	227	316	52	ZN105
27	NM318	330-340	230	230	324	52	ZN152
28	NM352	364-374	235	235	358	52	ZN137
29	NM390	402-413	257	257	396	65	ZN127
30	NM410	423-433	302	302	417	71.5	ZN189
31	NM418	431-442	297	297	425	65	ZN139
32	NM434	448-458	302	302	441	71.5	ZN173
33	NM435	449-459	346	346	442	52	ZN112
34	NM444	458-469	310	310	451	65	ZN147
35	NM461	475-486	328	328	468	65	ZN119
36	NM490	504-515	358	358	497	65	ZN120
37	NM518	532-544	378	378	525	65	ZN121
38	NM536	550-562	395	395	543	65	ZN175
39	NM548.2	562-575	395	395	555	65	ZN176
40	NM550	564-577	380	380	557	65	ZN146
41	NM560	574-587	427	427	567	65	ZN123
42	NM568	582-595	448	448	575	52	ZN109
43	NM590	604-618	456.5	457	597	65	ZN124
44	NM620	636-649	457	457	628	65	ZN125
45	NM640	662-675	482	482	654	65	ZN129
46	NM667	684-698	482	482	675	65	ZN126
47	NM687	704-718	482	482	695	78	ZN143
48	NM693	710-725	546	546	701	65	ZN118
49	NM695	712-727	508	508	703	65	ZN142
50	NM705	722-737	508	508	713	65	ZN140
51	NM730	747-762	538	538	738	65	ZN141
52	NM820	838-855	580	580	828	73	ZN190

Specializing in the development, production and sales of ultra-high pressure sealing components for steel pipe hydrostatic pressure test. The company is committed to the research and production of sealing components for steel pipe hydraulic testing machines, and has a strong professional R & D team and excellent after-sales service personnel. It has established cooperative relations with more than ten famous domestic hydraulic testing machine design units to design and produce various new sealing products. Standard hydrostatic pressure test requirements, stable performance, long service life, best-selling domestic and Southeast Asian markets, well received by domestic and foreign users.

V-shaped sealing element

Z-shaped internal support component

Beijing Jianke Huifeng Technology

+86-18911865558

E-mail: sales@jkhfseal.com

Production Base: No.66 Tiangao Road, Anci District, Langfang City, Hebei Province

Address: No. 1-2926, East of Chaichang Village, Yongledian Town, Tongzhou District, Beijing (Lianhang Building)

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