Model No.: Hits: 2358

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Detail Infomation

Flange retractable butterfly valve can compensate thermal expansion and contraction on pipe lines automatically. It is easy for assemble and disassemble. Flange retractable butterfly valve is widely used for pipe line to regulate or cut off medium in petroleum, chemical, electricity, etc.

Working temperature: ≤425℃

Nominal pressure PN: ≤1.6MPa

Characteristics:

1. Unique structure, light weight

2. Flange retractable butterfly vale can compensate thermal expansion and contraction on pipe lines automatically and convenient for usage.

3. Sealing parts can be changed, having reliable sealing.

Notes:

1. The valve must be laid before installation. Holder is not allowed to remove during transporting.

2. The structure length of flange retractable butterfly valve is minimum length in the factory. It should be pulled to installing length (design length).

3. When length between pipes is larger than design length, adjust the length. It is not allowed to force the valve in case of damage.

4. The valve can be installed in any position. When using for compensating temperature, two ends of pipe need to add holder to avoid extension tube pulling out.

Parameter

Model		SD341X-6	SD341X-6Q	SD341X-10	SD341X-10Q
Working Pressure(MPa)		0.6		1.0
Applicable Temperature(℃)		≤120		Based on different rubber category	≤120
Applicable Medium		Water, oil, gas, etc		Based on different rubber category	Water, oil, gas, etc
Materials	Body	Grey cast iron		Grey cast iron	Nodular cast iron
	Disc	Nodular cast iron		Nodular cast iron/stainless steel	Nodular cast iron
	Stem	2Cr13		Stainless steel/carbon steel	Chromium stainless steel

Dimensions

Nominal Diameter DN		Dimensions(reference value)							Flange Dimensions & Bolt Hole Dimensions(standard value)												Model of electric Actuator
Nominal Diameter DN		H	H1	Maximum Length	Minimum Length	Design Length	A	B	0.6MPa				1.0MPa				1.6MPa
mm	inch	H	H1	Maximum Length	Minimum Length	Design Length	A	B	D	D1	D2	n-d	D	D1	D2	n-d	D	D1	D2	n-d
50	2	80	440	164	138	151	250	255	140	110	88	4-14	165	125	99	4-18	165	125	99	4-18	QB10-1
65	2 1/2	95	445	190	154	172	250	255	160	130	108	4-14	185	145	118	4-18	185	145	118	4-18	QB10-1
80	3	98	476	195	163	177	250	255	190	150	124	4-18	200	160	132	8-18	200	160	132	8-18	QB10-1
100	4	114	504	227	184	206	250	255	210	170	144	4-18	220	180	156	8-18	220	180	156	8-18	QB10-1
125	5	128	550	254	201	215	250	255	240	200	174	8-18	250	210	184	8-18	250	210	184	8-18	QB20-1
150	6	139	652	240	195	225	300	315	265	225	199	8-18	285	240	211	8-22	285	240	211	8-22	QB20-1
200	8	174	732	265	215	245	300	315	320	280	254	8-18	340	295	266	8-22	340	295	266	12-22	QB60-1
250	10	215	823	295	235	265	300	315	375	335	309	12-18	395	350	319	12-22	405	355	319	12-26	QB60-1
300	12	245	877	308	254	282	300	315	440	395	363	12-22	445	400	370	12-22	460	410	370	12-26	QB120-1
350	14	270	932	325	271	300	300	315	490	445	413	12-22	505	460	429	16-22	520	470	429	16-26	QB120-1
400	16	305	1047	345	283	314	300	315	540	495	463	16-22	565	515	480	16-26	580	525	480	16-30	QB250-1
450	18	325	1092	370	314	340	575	615	595	550	518	16-22	615	565	530	20-26	640	585	548	20-30	QB250-

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Flange Retractable Butterfly Valve

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