DQ Marine

Marine Equipment & Technical Supplies

TECHNICAL DATASHEET Issued 2026-10-05

DQ MARINE PRODUCT DATA

Carbon Steel Galvanized Strum Box CB623-1980 Type B

Category
GB/CB/CBM Valve
Origin
China
Carbon Steel Galvanized Strum Box CB623-1980 Type B

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 carbon-steel-galvanized-strum-box-cb623-1980-type-b
Standard CB623-80
Material Galvanized Carbon Steel or Copper (H62)
Weight / Size 12px;">
Origin China

Technical Information

China Carbon Steel Galvanized Strum Box CB623-1980 Type B:

Strum Box is used as the suction mouth on the oil tanker, water tanker, ballasting and cargo, also can as rose box, suction screen, suction strainer, suction box.

Technical Specification:

Standard: CB623-80

Material: Galvanized Carbon Steel or Copper (H62)

Type Name Nominal Size(DN)
A Round Strum Box with Clamp Ring 25~100
B Round Strum Box 125~250
C Wedge strum Box with Clamp Ring 40~100
D Wedge strum Box 125,150
Main Size List(mm):
DN Pipe Outer Diameter Structure Size Weight (kgs)
Steel Pipe Copper Pipe Water Gas Pipe d3 H H1 H2 D L L1 L2 C A B C D
Type A Type B Steel Copper Steel Copper Steel Copper Steel Copper
25 32 32 33.5 34 63 10 22 78 — — — 88 — 0.328 0.365 — — — — — —
32 38 38 42.25 45 12 103 — — — 113 — 0.43 0.465 — — — — — —
40 45 45 48 50 75 15 124 110 110 60 134 120 0.727 0.784 — — 0.55 0.59 — —
50 56 56 60 62 88 18 134 70 144 0.868 0.923 — — 0.78 0.838 — —
65 70 70 75.5 78 100 22 144 130 120 80 154 140 0.942 1.02 — — 1.326 1.432
80 89 89 88.5 92 112 25 168 165 146 100 178 175 1.462 1.59 — — 1.396 1.506
100 108 108 114 116 136 30 204 210 180 120 216 224 2.03 2.2 — — 2.096 2.26
125 133 133 140 142 150 38 — 266 268 222 142 280 282 — — 3.546 3.938 — — 3.79 4.09
150 159 159 165 168 186 45 — 302 310 260 174 316 324 — — 5.341 5.772 — — 5.73 6.038
200 219 206 — 225/215 234 62 — 396 — — — 410 — — — 8.852 9.574 — — — —
250 273 258 — 280/264 306 75 — 456 — — — 464 — — — 11.16 11.64 — — — —