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電動金屬三偏心伸縮蝶閥用途User
本蝶閥適用溫度≤80℃，用于石油、化工食品醫(yī)藥輕紡、造紙、電力、給排
水、氣體管路上，作調節(jié)流量和截流介質的作用，具有補償管道熱脹冷縮的功能。
This butterfly valve，with the suitable temperatu re as=80℃，is used for the pipeline of petroleum，chemical，food，medicine，ight&textile，paper-makin9，water supply and drainage，gas for the flow adjustment and medium cut-off and holds the function to compensate heat-expansion cold-contraction of the pipeline
特點Characteristic
1、設計新穎、合理、結構*、重量輕、操作方便、起閉迅速。
2、本伸縮蝶閥既能起到調節(jié)流量和截流作用，又能補償管道溫差，所產生的熱脹冷縮功能，同時也便于安裝和拆卸，為一閥多用產品。
1 Brand-new and reasonable design,unique structure，light weight，easy operation，quick open-close.
2 This escopic butterfly valve can act as flow adjustment and cut-off and also compensate the heat-expansion cold-contraction of the pipeline caused due to temperature difference and is conveniently mountable and removable，as an one-valve muIti-purposes product
安裝注意事項Precautions in installation
1、本蝶閥安裝前必須清洗內腔雜物。
2、本閥可有一定范圍內伸縮，安裝前必須松開伸縮部位的密封墊壓蓋，然后待本閥門與管道所需要的長度后，再鎖緊伸縮密封壓蓋。
1 Clear out the impurities inside of the internal cavity before to install this butterfly valve.
2 This valve is stretchable in a certain range and，before installation，the sealing pad of the stretching part shall be loosened and，then，whlength is set for both valve and pipeline，tightened.

名稱Name	材料Material
閥體body	鑄鐵、球墨鑄鐵、鑄鋼、不銹鋼 Cast iron,ductile iron,cast steel stainless steel
閥板Disc	鑄鐵、球墨鑄鐵、鑄鋼、不銹鋼 Cast iron,ductile iron,cast steel stainless steel
閥桿stem	2Cr13、不銹鋼襯 Stainless steel lined
密封圈seat	耐磨橡膠、丁腈橡膠等wearable rubber,NBR etc.
填料packing	丁腈橡膠V型墊、柔性石墨V-type pad of NBR,flexible graphite

電動金屬三偏心伸縮蝶閥法蘭連接尺寸和主要外形尺寸Flange size and main dimensions

公稱通徑DN	L	L2	L1	D	D	Z-d	H1	H2
50	158	168	178	165	125	4-19	80	155
60	164	174	185	185	145	4-19	80	155
80	168	178	200	200	160	8-19	97	173
100	181	193	220	220	180	8-19	110	220
125	196	203	250	250	210	8-19	125	255
150	198	213	285	285	240	8-23	143	258
200	213	228	340	340	295	8-23	170	310
250	230	242	395	395	350	12-23	200	355
300	241	258	445	445	400	12-23	225	380
350	256	278	505	505	460	16-23	253	422
400	287	312	565	565	515	16-28	281	486
450	295	325	615	615	565	20-28	308	497
500	310	330	670	670	620	20-28	335	560
600	343	364	780	780	725	20-31	390	715
700	394	414	895	895	840	24-31	483	782
800	405	428	1015	1015	950	24-34	543	882
900	410	435	1115	1115	1050	28-34	606	925
1000	530	560	1230	1230	1160	28-37	655	1000
1200	570	602	1455	1455	1380	32-40	778	1087
1400	630	665	1675	1375	1590	36-43	912	1350
1600	720	730	1915	1915	1820	40-49	1032	1475
1800	800	845	2112	2115	200	44-49	1154	1670
2000	910	1010	2325	2325	2230	48-49	1295	1780