High-Quality WRAS Approved Butterfly Valve - High Performance & Durability 4020L Supplier, Manufacturers

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Product Description

Product Overview

Range of wafer and lug butterfly valves incorporating blue epoxy coated ductile iron body, either a stainless steel (CF8 or CF8M) or blue epoxy coated ductile iron disc and an EPDM seat.

Working Pressure

Max. 16.0 Bar

Operating Temp

Max. 85°C

Body Material

Blue Epoxy Ductile Iron

Disc & Seat

CF8/CF8M/DI Disc, EPDM Seat

Identification Marking
Tianjin top automation equipment Co.,Ltd, model, size and PN on data plate on body.
Model (Lever Operated)
4020L (Wafer) & 4325L (Lug) DN40-DN300
Model (Gearbox Operated)
4020G (Wafer) & 4325G (Lug) DN350-DN600 (DN40-300 lever and gear operated, DN350-600 gear operated)
Size Range
DN40 to DN1000 (See models and dimension charts)
Dimensions & Technical Specifications
Dimensions Diagram DN50-DN600
Semi-Lug Butterfly Valve Technical Drawing
DIMENSIONS in(mm) - DN50 to DN300
Size A B C2 D E F KxK Top PCD Plate HOLE N-Dia
DN501407010541903011x11704-θ9
DN651527611744903011x11704-θ9
DN801599113044903011x11704-θ9
DN10017810216251903014x14704-θ9
DN12519111918754903014x14704-θ9
DN15020313321654903017x17704-θ11
DN200241170271641253017x171024-θ11
DN250273210330641253022x221024-θ11
DN300308243376761253022x221024-θ11
DIMENSIONS in(mm) - DN350 to DN600
Size A B C2 D E F K SxS/d Top Plate Data PCD
DN350413267451508052547022x22125
DN400451309451759058552527x27140
DN4504673184517510965058527x27140
DN5005253504517512772065036x36140
DN6006074104521015485077036x36165
Large Diameter Dimensions (PN10 / PN16)
Large Diameter Valve Diagram
PN10 Specifications
SizeABCLфDфKNxфd4xMфEфFa°GHOPфRWeight(Kg)
DN70078458116316989584024xф31/74169515355146146228400361
DN800832655188195101595024xф34/847794.715355146146228400444
DN9009747452032111115105024xф344xM30943864.712.857377170170243450660
DN100010548032162241230116024xф374xM331049965.712.857377170170243450830
PN16 Specifications
SizeABCLфDфKNxфd4xMфEфFa°GHOPфRWeight(Kg)
DN70078458116316991084020xф374xM3374169515355146146228400396
DN800926655188195102595020xф404xM36847794.715377170170243450573
DN9009747452032111125105024xф404xM36943864.712.857377170170243450690
DN100011108032162241255117024xф434xM391049965.712.8574761802503024501025
Product Demonstration Video
Frequently Asked Questions
What body and disc materials are available for this butterfly valve series?
The series features a blue epoxy coated ductile iron body, with disc options including stainless steel (CF8 or CF8M) or blue epoxy coated ductile iron, and is fitted with a resilient EPDM seat.
What are the maximum pressure and temperature limits?
The valves are engineered for a maximum working pressure of 16.0 Bar and a maximum operating temperature of up to 85°C.
What operation options are available across the size range?
Sizes DN40-DN300 are available with lever or gear operation (Model 4020L/4325L), while sizes DN350-DN600 and larger operate via gearbox (Model 4020G/4325G).
What body connection styles are provided?
The series provides both Wafer (Model 4020L / 4020G) and Lug (Model 4325L / 4325G) body connection designs across standard industrial dimensions.
What identification markings are included on the valve?
Identification is provided via a data plate on the valve body displaying Tianjin top automation equipment Co.,Ltd, model designation, size, and PN pressure rating.

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