1621.643.4:629.12 National Standard of the People's Republic of China GB303582 204-99 Ships'bulkhead pipe parts of vent pipes1982-04~15 Issued General Administration of Standards 1982-12-01 Implementation National Standard of the People's Republic of China Ships'bulkhead pipe parts of vent pipesThe types of vent pipe fittings are shown in Table 1. Table 1 Round through-cabin pipe fittings Rectangular through-cabin pipe fittings General Administration of Standards1982-04-15 Issued Nominal diameter D. 621.643.4 3035-82 Nominal size of rectangular channel 100×200 120×150 100×250 12 0×210 100×350 120×280 150×220 120×470 150×350 190×280 1 50×530 190×390 240×300 190×550 240×420 290×-360 190×760 240×550 290×460 1982-12-01implementation GB3.035-82 The types and basic dimensions of round through-cabin pipe fittings (Type A) shall be in accordance with Figure 1 and Table 2. 200 or 280 Nominal diameter Pipe flange Number of screw holes GB3035—82 The types and basic dimensions of rectangular through-compartment pipe fittings (Type B) are in accordance with Figure 2 and Table 3. 100 200 or 280 Rectangular channel Nominal size Pipe flange Opening size Intermediate flange Bolt hole spacing L=200L Marking example:| |tt||GB3035-82 Round through-cabin fittings with nominal diameter Dg=100mm, L=200mm: GB3035-82 Through-cabin fittings A100-200 Rectangular through-cabin fittings with nominal diameter Dg=200 (100×350) mm, L=280mm: Through-cabin fittings B200 (100×350)-280GB3035-824Through-cabin fittings are made of ordinary carbon steel A3 (GB700-79). 5 Technical conditions are in accordance with the provisions of GB3029-82 "Technical Conditions for Marine Ventilation Accessories". Additional remarks: This standard was proposed by the Sixth Ministry of Machinery Industry of the People's Republic of China and is under the jurisdiction of Jiangnan Shipyard. This standard was drafted by Jiangnan Shipyard. bzxz.net The main drafter of this standard is Wang Changdi. This standard was first formulated as the Ministry Standard CB204-60 in 1960 and revised as CB204-66 in 1966. From the date of implementation of this standard, the original Ministry Standard CB204-66 shall be invalid. 4 People's Republic of China National Standard Marine Ventilation Pipe Fittings GB303582 Published by Technical Standards Press (Beijing Fuwai Sanlihe) Printed in the Printing Workshop of Technical Standards Press Published by Beijing Publishing House of Xinhua Bookstore Sold by Xinhua Bookstores in various places 2 characters Number 7000 Format.880×i2301/16 6 sheets 1/2 Reverse November 1982 first printing November 1982 first edition Print run 1-3,000 Book number: 15169·1·1416 Price 0.14 yuan Science and Technology New Book E 3# 153 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.