High Quality Ductile Casting Iron Lug Type Manual Butterfly Valve

Product Description

Flanged Butterfly Vlave with Concentric & Single Eccentric & Double Eccentric & Three Eccentric

Description
Double eccentric end-flanged resilient sealing butterfly valve is operated by the disc rotating from 0° to 90 ,can be applied to cutoff of regulate the flow of media Vitreous be actuated by available upon request. Valve can be actuated by operating ever. handle wheel. electric actuator or pneumatic actuator.
Technical Specifications: 
Design: EN593
Face to face: ISO5752/EN558 SERIES13
Flange drilling: EN1092
Upper flange connection:ISO5211
Main Parts and Material:

Item	Part Name	Material	Item	Part Name	Material
1	Body	CI + NBR/EPDM or DI + NBR/EPDM	3	Body	CI + NBR/EPDM or DI + NBR/EPDM
2	O-ring	EPDM	4	O-ring	EPDM

Main Dimensions: Unit: mm

DN	H1	H2	D	L
100	460	109	220	127
150	530	143	285	140
200	570	182	340	152
250	660	219	400	165
300	715	244	455	178
350	750	283	505	190
400	785	312	565	216
450	890	344	615	222
500	920	381	670	229
600	995	451	780	267
700	1055	526	895	292
800	1135	581	1015	318
900	1190	643	1115	330
1000	1315	722	1230	410
1200	1505	840	1455	470
1400	1740	1150	1675	530
1600	1915	1305	1915	600
1800	2100	1425	2115	670
2000	2225	1580	2325	760
2200	2325	1710	2550	580
2400	2570	1880	2760	750
2600	2850	2010	2960	900

For other sizes not mentioned above, please contact us. We have right to change the data without further notice.

Professional Design:
* When initating the rotary opening movement the disc is off-seated after only few degree of opening movement and there is very little wear and tear between seat ring and disc
* Body surface welding Brass when DN >700(see the picture),Our factory car also manufacture extension stem butterfly valve, butterfly valve of DN1800 extension stem lengthened 16.5 meters. (see the picture)
* Rubber sealing ring and disc can adjust tightness or softness with clamping ring, it insures best performance of adjusting the compression of sealing
* Body and disc made of ductile iron which promote the impact resistance and pressure-bearing capacity; sealing ring made of rubber and valve seat's sealing surface is conical shaped,make the sealing capacity more reliable.
Excellent Corrosion Protection:
Inside electrostatic epoxy resin powder coating or vitreous enamel(upon request),outside electrostatic epoxy resin powder coating
Reliable Health Nature:
Epoxy resin coating complies with WARS certification.
Scope Of Application:
Potable water supply and distribution, electric power pant,gas supply, warm-aiti system,smelting plant,chemical industry.
Package
Packing: Usually packed by plywood crates or pallets.

Quality Control
SYI Pipeline regards quality as an essential and integral part of our business success. Until now, we are ISO9001:2015 TUV, BSI Kitemarked, SGS, BV, FM certified, and UL, WRAS listed. We are the approved supplier to many worldwide known countries and authorities. Manufacturing "SYI" Brand products has evolved as a mark of quality!

Services
SYI manufactures and designs complete series of Valves according to DIN/BS/EN/API/ANSI/AWWA

/ASME/ Russian and other major standards.

-Gate Valves,
-Butterfly Valves,
-Check Valves,
-Y-Strainers
-Air Release Valves
-Globe Valves
-Fire Hydrant

The Valves supplied by SYI Pipelines are mainly used for adjusting water, steam, oil, gas, and natural
gas in chemical industries, acid, alkali, and salt working pipelines. Sizes from 50-2000mm can meet full requirements from customers.

Company Profile

SYI has continually invested in better technology and production facilities. More than 4,000 patterns
are ready. We are capable to finish all the production processes from moulding, shot-blasting, machining, coating to packaging. We have over 100,000 m2 foundry land including:
-10,000 m2 of the pattern, sand mixing, polishing, machining, hydraulic pressure, coating, packaging workshops;
-4,000 m2 of three green sand moulding workshops and one resin sand moulding workshops;
-3,000 m2 of automatic moulding machine line and epoxy coating line
-professional laboratory
-machining shop
-and our own tooling shop

Strict process and operating regulations together with perfect quality assurance system making every production step under control. All the products are subject to tests and inspections including composition analysis, metallographic examination, dimension & surface finish inspection, ring test, tensile test, hardness test, hydrostatic test, lining and coating test to be sure that the products meet the requirements of the standards.

Since 2009, SYI Pipeline has developed from a pipes & fittings seller to a professional project solution provider, including the one stop service and solution from pipes, fittings, couplings & flanged adaptors, valves, fire hydrants, to water meters and accessories.

SYI products have served 111 countries worldwide up to now!
Most of these customers cooperated with SYI for more than 20 years!
We value long term cooperation relationship mostly!

Welcome to send us an inquiry for more details and price!!!