DQ Marine

Marine Equipment & Technical Supplies

TECHNICAL DATASHEET Issued 2026-08-23

DQ MARINE PRODUCT DATA

Marine Center Hand Manual Wafer Butterfly Valve

Category
GB/CB/CBM Valve
Origin
China
Marine Center Hand Manual Wafer Butterfly Valve

Product Overview

DQ Marine supplies marine equipment and technical products for shipyards, vessel operators, offshore projects and industrial buyers worldwide.

Key Specifications

Category GB/CB/CBM Valve
Model / SKU marine-center-hand-manual-wafer-butterfly-valve
Standard  GB/T3036-1994 Type A/AS
Origin China

Technical Information

China Marine Center Hand Manual Wafer Butterfly Valve:

Marine Butterfly valve is used to adjust the flow rate, open and close the pipe system in the marine pipe system, with the simple structure.

Connection Type: Wafer, Lug, Flange

Technical Specification:

Design Standard: GB/T3036-1994 Type A/AS

Test Standard: GB600

Applicable Medium: sea water, fresh water, air, crude/refined oil (t≤70℃)

Main Material:

1-Body: Cast Iron, Ductile Iron, Cast Steel, Bronze

2-Disc: DI or WCB with galv, Stainless Steel, Bronze

3-Pin: Stainless Steel

4-Seat: NBR, EPDM,CR,FKM,VITION,PTFE

5-Stem: Stainless Steel

Main Size:

Nominal
Pressure
Mpa 		Norminal
diameter 		Structure& Flange Dimension Hole of Bolt
ISO、JIS、GB ISO(GB2501-89) JIS GB(GB569-65) ISO JIS GB
H H1 L1 L D D1 D2 L D D1 D2 L D D1 D2 n Th. n Th. n Th.
1.0 50 235 90 260 43 165 125 102 40 155 120 88 43 135 103 84 4 18 4 19 6 16
65 250 100 260 46 185 145 122 40 175 140 112 46 155 123 104 4 18 4 19 6 16
80 295 130 260 46 200 160 133 60 185 150 125 46 170 138 118 8 18 8 19 8 16
100 315 135 260 52 220 180 158 60 210 175 144 52 190 158 138 8 M16 8 M16 8 M14
125 350 155 260 56 250 210 184 60 250 210 178 56 215 183 164 8 M16 8 M20 10 M14
150 405 170 310 56 285 240 212 70 280 240 207 56 240 208 190 8 M20 8 M20 12 M14
200 455 190 310 60 340 295 268 80 330 290 265 60 310 273 250 8 M20 12 M20 14 M16