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Double Eccentric Welding Butterfly Valve

Introduction

A Double Eccentric Welding Butterfly Valve is a high-performance valve designed to control the flow of fluids in industrial systems with precision and reliability. The valve features a unique "double eccentric" design, where both the shaft and seat are offset from the centerline. This design minimizes friction and wear, ensuring a smooth operation and long service life. The offset disc and shaft allow the valve to provide a tight seal without excessive torque, making it highly efficient and reducing the need for frequent maintenance.

The welding design of this valve allows it to be directly welded into the pipeline, offering a secure, permanent connection that is ideal for systems where a durable, leak-proof installation is required. This valve is particularly suited for high-pressure and high-temperature applications, making it a preferred choice in industries such as oil and gas, power generation, chemical processing, and water treatment, where operational reliability and system efficiency are crucial.

Applications

Double Eccentric Welding Butterfly Valve is trusted across various industries for its precision, durability, and reliability. Explore its wide-ranging applications below:

Oil & Gas icon

Oil & Gas

Used for regulating the flow of crude oil, natural gas, and refined products in pipelines and processing plants, offering secure and leak-proof operation under high pressure.

Power Generation icon

Power Generation

Employed in steam, feedwater, and cooling systems to regulate fluid flow in high-pressure and high-temperature environments, ensuring reliable system operation.

Chemical Processing icon

Chemical Processing

Handles the flow of chemicals in production systems, providing durable and reliable control in both high and low-pressure applications.

Water Treatment icon

Water Treatment

Installed in water treatment and distribution systems to ensure precise flow regulation and leak-proof sealing in high-pressure environments.

HVAC Systems icon

HVAC Systems

Used in HVAC systems to regulate air or water flow, offering efficient operation and tight shutoff to maintain system performance.

Marine Applications icon

Marine Applications

Installed in marine and offshore platforms to control fluid flow in ballast water, fuel, and cooling systems, providing reliable performance in marine environments.

Technical Specifications

Double Eccentric Welding Butterfly Valve

butterfly valve graph

Worm Gear Butt-welded Butterfly Valve

butterfly valve graph

Electric Butt-welded Butterfly Valve

butterfly valve graph

Pneumatic Butt-welded Butterfly Valve

Main Outline Dimensions and Weight

0.6MPa mm

DNLWorm gear actuationElectricPneumaticWeight(kg)
A1B1M1E1F1JD01A2B2E2F2A3B3E3F3M3Warm gearElectricPneumatic
801802031257590205832002031254755052031259328211027 4229.5
1001902081307590205832002081304755052081309328211034 46 36
12520021814075902058320021814047550521814011534414041 48 46
15021028515595902058320028515547550528515511534414043 53 51
20023032018095902058320032018047550532018015045018781 84 80
250250349220959020583200349220475505349220290762270102 124 122
3002703982501159020583200398250475505398250290762270132 138 142
3502904172751159020583250417275475505417275330900305164 176 192
40031045531513490205832504553154755054553153701084350193 183 270
45033048034013490205832504803404755054803403701084350238 270 310
5003505123751591202651412505123755665055123754051182390302 315 414
6003905624251591202651412505624255665455624254051182390415 421 484
7004306364901631852501153156364906155456364905001442470660 615 725
8004707065501631852501153157065506155457065506301865500780 705 825
900510756600185185250115315756600820520756600------820 825 --
1000550816650185245400145315816650820545816650------1265 1285 --
1200630944775220310460191400944775945545944775------1590 1655 --
1400710108489522031046019140010848959455451084895------2185 2255 --
16007901204102522041055527040012041025114054512041025------3210 3330 --
18008701395109532052064035140013951095133754513951095------4090 4350--
20009501449119532052064035140014491195133754514491195------5610 5680--
220010001569132532052064035140015691325133754515691325------6410 6630 --
240011001704144532052064035140017041445137771517041445------7810 8255 --
260011901824156533545078544063018241565144371518241565------9450 9550 --
280012701944168533545078544063019441685144384519441685------10800 11030 --
300013502074181533545078544063020741815144384520741815------12200 12880 --

Note: * Structural length to ISO5752 14 series

Main Outline Dimensions and Weight

1.0MPa mm

DNLWorm gear actuationElectricPneumaticWeight(kg)
A1B1M1E1F1JD01A2B2E2F2A3B3E3F3M3Warm gearElectricPneumatic
8018020312575902058320020312547550520312593282110------
10019020813075902058320020813047550520813093282110------
125200218140759020583200218140475505218140115344140------
1502102851559590205832002851554755052851551153441405873--
2002303201809590205832003201804755053201801504501877691--
250250349220959020583200349220475505349220290762187115130--
3002703982501159020583200398250475505398250290762270145165--
3502904172751159020583250417275475505417275330900305185205--
40031045531513490205832504553155665054553153701084350245265--
45033048034013490205832504803405665454803403701084350315335--
5003505123751591202651412505123756155455123754051182390375395--
6003905624251591202651412505624256155455624254051182390510530--
7004306364901631852501153156364908205206364905001442470770790--
800470706550163185250115315706550820545706550630186550010701090--
900510756600185185250115315756600945545756600---14351455--
1000550816650185245400145315816650945545816650---17451755--
12006309447752203104601914009447751140545944775---27252745--
14007101084895220310460191400108489513375451084895---35103550--
16007901204102522041055527040012041025133754512041025---44704510--
18008701395109532052064035140013951095133754513951095---4945---
20009501449119532052064035140014491195137771514491195---6230---
220010001569132532052064035140015691325144371515691325-------
240011001704144532052064035140017041445144384517041445-------

Main Outline Dimensions and Weight

1.6MPa mm

DNLWorm gear actuationElectricPneumaticWeight(kg)
A1B1M1E1F1JD01A2B2E2F2A3B3E3F3M3Warm gearElectricPneumatic
8018020312511590205832002031254755052031251153441402745--
10019020813011590205832002081304755052081301153441403457--
12520021814011590205832002181404755052181401504501874163--
15021028515511590205832002851554755052851552907622704371--
20023032018011590205832003201804755053091802907622708183--
2502503492201349020583250349220475505343220330900305102126--
30027039825013490205832503982454755053682453701084350132151--
3502904172751591202651412504172755665054012753701084350164195--
4003104553151591202651412504553005665454433004051182390193273--
4503304803401631852501153154803406155454693404051182390238290--
5003505123751631852501153155123756155075013755001442470302414--
6003905624251852454001453155624408205456064406301865500457545--
700430636490185245400145315636490820545----------810825--
800470706550220310460191400706550945545----------10931005--
900510756600220310460191400756625945545----------14101560--
10005508166502554105552704008166901140545----------18701910--
12006309447752554105552704009447951140545----------20822450--
1400710108489532052064035140010849451337545----------28503250--
160079012041025320520640351630120410651423720----------42354400--
180087013951095335520785440630139510951423720----------53465670--
200095014491195335520785440630144911951423720----------73287565--
2200100015691325335450785440630156913251423720----------------
2400110017041445335450785440630170414451423720----------------

Note: * Structural length to ISO5752 14 series

Main Outline Dimensions and Weight

2.5MPa mm

DNLWorm gear actuationElectricPneumaticWeight(kg)
A1B1M1E1F1JD01A2B2E2F2A3B3E3F3M3Warm gearElectricPneumatic
8018020312511590205832002031254755052031251504501872054--
10019020813011590205832002081304755052081302907622702355--
12520021814011590205832002181404755052181402907622703864--
15021028515511590205832002851554755052851553309003056571--
200230317195134902058325031719547550531719537010843508596--
25025036022013490205832503602204755053602203701084350135145--
3002703952501591202651412503952505665053952504051182390175167--
3502904192901591202651412504192905665454192904051182390195220--
4003104683251631852501153154683256155454683255001442470295278--
4503304763501631852501153154763506155454763506301865500350380--
500350556390185245400145315556390820545556390------510496--
600390644450185245400145315644450820545644450------625705--
700430684500220310460191400684500945545684500------9251000--
8004707745902554104602704007745901140545774590------12601190--
9005108446452554105552704008446451140545844645------17901670--
10005508946952554105552704008946951140545894695------19402180--
12006301049845320520640351400104984513375451049845------28102980--

4.0MPa mm

DNLWorm gear actuationElectricPneumaticWeight(kg)
A1B1M1E1F1JD01A2B2E2F2A3B3E3F3M3Warm gearElectricPneumatic
80180203125115902058320020312547550520312515045018723----
100190208130115902058320020813047550520813029076227026----
125200218140115902058320021814047550521814029076227043----
150210285155115902058320028515547550528515533090030564----
2002303181951349020583250318195475505318195370108435074116--
2502503532251591202651412503532255665053532253701084350115215--
3002703962651591202651412503962655665453962654051182390165263--
3502904263001621852501153154263006155454263004051182390259297--
4003104613401631852501153154613406155454613405001442470325477--
4503304863651852454001453154863658205454863656301865500366524--
500350584400185245400145315584400820545584400------444585--
600390644475220310460191400644475945545644475------7201000--
7004307245402554105552704007255401140545724540------12501410--
8004707945952554105552704007945951140545794595------19502110--

Note: * Structural length to ISO5752 14 series

Main Outline Dimensions and Weight

Class 150 mm

DNLWorm gear actuationElectricPneumaticWeight(kg)
A1B1M1E1F1JD01A2B2E2F2A3B3E3F3M3Warm gearElectricPneumatic
3"18029513511584198842002951355134672951351153441404855--
4"19030515511584198842003051555134673051551153441405358--
5"20032216711584198842003221675134673221671263901755863--
6"21036617011594211842503661705254753661701504501876565--
8"2303961981341172671452503961985804703961982807622709085--
10"250429231134175254114315429231635560429231330900305135120--
12"2704832691591752541143154832697055604832694051182385160156--
14"2904982331592394041453154982337656154982334051182385230212--
16"3105793371632394041453155793378256155793374051182385310295--
18"3306303661632394041913156303668758206303664451292410400370--
20"3506553941633004651914006553949308206553944451292410490460--
24"39074445218530046519140074445210408207444525001442465710640--
26"41076246218530046519140076246211008207624625001442465------
28"430790511185300465191400790511115594579051163018655009801000--
30"4508155362203005592694008155361225945815536630186550011401160--
32"4708745772203005592694008745771275945874577630186550015501570--
36"51089960225530055926940089960213751145899602------18001820--
40"55010646962553005592694001064696149011451064696------22302250--
42"57010927212553005593354001092721155013351092721------24602456--
44"59011487312553005723354001148731160013351148731------27002720--
46"61011797623203005723354001179762165513351179762------------
48"63012708003203005723354001270800171513701270800------30103030--
52"67013148503204256353655001314850183513701314850------40804100--
54"69013558703204256353655001355870192014251355870------44704490--
56"71013848953204256353655001384895200514251384895------44704490--
60"75015041025335425635365500150410252115142515041025------50805130--

Note: * Structural length to ISO5752 14 series

Main Outline Dimensions and Weight

Class 300 mm

DNLWorm gear actuationElectricPneumaticWeight(kg)
A1B1M1E1F1JD01A2B2E2F2A3B3E3F3M3Warm gearElectricPneumatic
3"180295132114841988420029513246751329513212639017551----
4"190358150114841988420035815046751335815015045018766----
5"20036516716811726714525036516746751336516728076227087----
6"210389188163175254114315389188564523389188330900305110----
8"2304172211631752541143154172216155444172214051182385198----
10"2504652521852394041453154652526155444652524051182385227----
12"2705462901852394041453155462908235135462904051182385366----
14"2905793182213004651914005793188235135793184451292410429----
16"3106423682213004651914006423689455136423684451292410624----
18"3306733962213004651914006733969455446733965001442465745----
20"3507014222543005592694007014229455447014225001442465856----
24"39077549525439955926940077549594554477549563018655001321----
26"41080051830539964835140080051894554480051863018655001400----
28"430904559305510648351400904559115882690455963018655001980----
30"4509635943055106483514009635941158826963594------2217----
32"4701054617305510648351400105461711588261054617------2548----
34"4901087653305510648351400108765311588261087653------2895----
36"51011616763686158054296301161676142010391161676------3568----
40"55012427193686158054296301242719142010391242719------3640----
42"57012857393686158054296301285739142010391285739------4028----
44"59013107643686158054296301310764142010391310764------4398----
46"61013317873686158054296301331787142010391331747------5004----
48"63013748334347659653996301374833173010391374833------5318----

Main Outline Dimensions and Weight

Class 600 mm

DNLWorm gear actuationElectricPneumaticWeight(kg)
A1B1M1E1F1JD01A2B2E2F2A3B3E3F3M3Warm gearElectricPneumatic
3"180343127135942118125034312756452334312733090030575----
4"1903711601701522671452503711606155443711604051182385117----
5"2003881781631752541143153881786155443881784051182385154----
6"2104011961631752541143154011968235134011964051182385186----
8"2304472211631752541143154472218235134472214451292410235----
10"2505442901852394041454005442909455135442904451292410398----
12"2706103072203004651914006103079455446103075001442465554----
14"2906403302203004651914006403309455446403305001442465654----
16"3107013912544005592694007013919455447013916301865500935----
18"33071640625440055926940071640694554471640663018655001085----
20"350828452305510645351400828452115882682845263018655001610----
24"3909205133055106453514009205131158826920513------1998----

Note: * Structural length to ISO5752 14 series

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YDB VALVES LLP

A pioneer manufacturer & supplier company having good experience in the designing and manufacturing of a new concept instrumentation Valves

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Y-21, Khan Real Industrial Estate, N. H. 08, Pelhar, Vasai Phata, Vasai East, Palghar - 401208. INDIA


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