Manual Stainless Steel Flange Telescopic Butterfly Valve

• Customization: Available
• Media: Water
• Driving Mode: Manual
• Model NO.: HZD
• Structure: Centre Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Casting
• Standard: Standard
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Plywood Case
• Specification: DN50-DN1200
• Trademark: HUIZHENG
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000pieces/Year

Product Description

Telescopic butterfly valve

Product Usage 
SD341X-6 and SD341X-10 flanged telescopic butterfly valves have the function of automatically compensating for thermal expansion and contraction of pipelines, which are convenient for loading and unloading. They are used in petroleum, chemical industry, electric power, papermaking, and water supply where the temperature is below 425ºC and the nominal pressure is below 1.6MPa. It is the best device for adjusting the flow rate and carrying and breaking fluid on industrial pipelines such as drainage and municipal construction.

Features 
1. Unique structure, flexible design, light weight, labor saving, fast opening and closing
2. The telescopic butterfly valve can not only compensate for the thermal expansion and contraction caused by the temperature difference and contraction of the pipeline, but also provide convenience for the installation and replacement of maintenance valves.
3. The sealing part can be adjusted and replaced, and the sealing performance is reliable

Installation Precautions 
1. The telescopic butterfly valve must be laid flat before installation, do not bump it at will, and it is strictly prohibited to remove the bracket during operation.

3. When the length between the pipelines exceeds the installation length of the telescopic valve, please adjust the pipeline interval and do not force the telescopic butterfly valve to avoid damage to the butterfly valve.
4. The telescopic butterfly valve can be installed arbitrarily. When used for temperature compensation, after the pipeline is installed, brackets should be added along the two ends of the pipeline axis to prevent the telescopic valve from pulling out.

DN	1.0MPa
	D	D1	D2	Lmax	Lmin	H1	H2	n-Φd
100	220	180	158	216	174	110	170	8-18
125	250	210	184	232	176	123	182	8-18
150	285	240	212	239	194	140	210	8-22
200	340	295	268	264	214	170	238	8-22
250	395	350	320	296	235	195	270	12-22
300	445	400	370	300	250	222	300	12-22
350	505	460	4330	320	270	252	330	16-22
400	565	515	482	332	282	285	368	16-26
450	615	565	532	355	305	310	402	20-26
500	670	620	585	365	315	337	438	20-26
600	780	725	685	420	370	393	490	20-30
700	895	840	800	446	396	450	558	24-30
800	1015	950	905	476	426	515	625	24-33
900	1115	1050	1005	506	456	560	685	28-33
1000	1230	1160	1110	516	466	610	750	28-36
1200	1455	1380	1330	560	510	725	880	32-39
1400	1675	1590	1530	590	540	840	987	36-42
1600	1915	1820	1750	630	585	960	1158	40-48
1800	2115	2020	1950	680	630	1060	1258	44-48
2000	2325	2230	2150	730	680	1165	1365	48-48

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