Insulated flange

Date of issue:2014-08-14 00:00 Source://lbgou.cn Click:

Insulated flange is a general term for the pipeline flange joints which have both the sealing performance required by buried steel pipeline and the electrical insulation performance required by electrical corrosion protection engineering. It consists of a pair of steel flanges, insulating seals between two flanges, flange fasteners and insulating parts of fasteners, and a pair of steel short pipes welded with two flanges respectively.

Insulation flange and insulation joint are our products for petroleum, chemical industry and other industries for many years. They are simple in structure, safe in use and reliable in performance. They have been widely used and well received.

Insulation flange products have formed a series, when there are special circumstances, can be designed and manufactured according to user requirements. Warmly welcome users to choose our products.

1、 Product use

This product is suitable for electrochemical corrosion protection and connection of buried pipelines in oil, gas, water and other media. And it has the function of insulation protection.

2、 Classification

According to the different insulation seals, the product is divided into two types: specific pressure sealing insulation flange (referred to as type I insulation flange) and self tightening sealing insulation flange (referred to as type II insulation flange).

The scope of application of type I insulating flange is: nominal pressure PN ≤ 2.5MPa.

3、 Characteristics

1. It has the electrical insulation performance required by the buried pipeline electrical corrosion protection engineering.

2. It can work reliably for a long time under the temperature and pressure required by the pipeline medium, and has sufficient strength and sealing performance.

3. Reasonable structure, convenient assembly, disassembly and replacement of parts.

4、 Main technical parameters

1. Applicable temperature: ≤ 100 ℃

2. Pressure range: pn0.6mpa ～ pn16mpa

3. Product specification: DN50 ~ DN1200

Three ring flange - specializing in the production of stainless steel flange, stainless steel forgings

Pn (Mpa)	Dn(mm)	50		65		80	100		150		200	250	300
0.6	dw×s	(57×3)	60×3	(73×3)	76×3	89×3.5	(108×4)	114×4	199×4.5	168×5	219×6	273×6.5	325×7.5
	Do	140	140	160	160	190	210	210	265	265	320	375	400
	H	691	691	693	693	699	703	703	713	713	727	733	739
	kg	7	7	8	8	12	15	16	25	26	40	53	74
1.0	Do	165	165	185	185	200	220	250	285	285	340	395	445
	H	703	703	703	703	713	719	719	713	713	727	733	739
	Kg	10	10	12	12	15	19	19	32	33	46	61	77
1.6	Do	165	165	185	185	200	220	220	285	285	340	405	460
	H	703	703	703	703	713	717	717	723	723	727	743	755
	Kg	10	10	12	12	15	19	19	32	33	470	67	87
2.5	Do	165	165	185	185	200	235	235	300	300	360	425	485
	H	703	703	713	713	723	733	733	739	753	763	779	787
	Kg	10	10	14	14	17	24	24	42	42	62	86	118

Pn (Mpa)	Dn(mm)	350		400		500		600		700
0.6	dw×s	355.6×9	(377×9)	406.4×9	426×9	508×9	(530×9)	610×9	(630×9)	711×9	(720×9)
	Do	490	485	540	535	645	645	755	755	860	860
	H	739	723	743	723	953	929	959	935	977	979
	kg	94	92	110	105	165	157	204	197	247	248
1.0	Do	505	500	565	565	670	670	780	780	895	895
	H	739	723	761	761	985	963	995	995	1007	1017
	Kg	101	105	130	129	198	187	253	241	312	307
1.6	Do	520	520	580	580	715	715	840	840	910	910
	H	771	759	781	777	995	1003	1031	1057	1057	1049
	Kg	125	125	160	158	268	264	374	365	415	401
2.5	Do	555	555	620	620	730	730	845	845	960	960
	H	807	807	831	831	1061	1061	1087	1084	1109	1109
	Kg	170	167	221	217	325	319	430	441	617	616

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