JIS Welded/cast type Marine Air Vent /Air Pipe Head
CB/T 3594 94 Classification number: L54
Marine air pipe head
1. Theme and Scope of Application
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of marine oil and water tank air pipe heads (hereinafter referred to as air pipe heads) with flange connection dimensions in accordance with GB569 and GB2501.
This standard is applicable to the air pipe heads of oil and water tanks used on various ships and offshore drilling platforms.
2 Referenced standards
GB 569 Marine flange connection dimensions and sealing surfaces
GB 2501 Marine Flange Connection Dimensions and Sealing Surface (Quad) GB3032 Marking of Ship Pipeline Accessories 3 Product Classification
3.1 The types of air pipe heads are specified as follows:
A-type flange connection size according to GB569 cap type air pipe head; AS type flange connection size according to GB2501 cap type air pipe head; B type flange connection size according to GH569 gooseneck type air pipe head; The connection size of BS type one way valve is according to GB2501 gooseneck type air pipe head,
The connection size of C-type flange is in accordance with GB569 for depth measurement and breathable air pipe head,
The connection size of CS type flange is in accordance with GB2501 for depth measurement and breathable air pipe head:
Type 1... with a flange connection size according to GB569 for the float type oil tank air pipe head; Type DS with a flange connection size according to GB2501 for the float type oil tank air pipe head; E type flange connection size according to GB569 float type water tank air pipe head; ES type one flange connection size according to GB2501 floating type water tank air pipe head; FS type - Floating ball type continent with flange connection size according to GB2501, water tank air pipe head.
3.2 The base wood parameters of the air pipe head are shown in Table 1
| Table 1 |
| Type |
Name |
nominal diameterDN
mm |
applicable range |
| A.AS |
cap type air pipe head |
50~250
50~100 |
oil,upper end of water tank air pipe |
| B,BS |
gooseneck air ridge head |
| C,CS |
sounding and breathable air pipe head |
Sealand Equipment Supply Co., Ltd.
For the last couple of years, we focus only on one thing: How to provide you a one-stop solution for all your need.
Sealand Equipment Supply Co., Ltd, is an experienced supplier for marine equipment and spare-parts. We have been engaged in the shipping industry over 15 years. By providing first-class products, timely delivery, best prices, we obtain the praise and trust of our customers.
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A vessel is like a city-everything you need to live is on board. Due to this extensive needs, SEALAND does not have a fixed product line. Whatever your vessel needs, we are willing to give our best to find a good solution.
Q: Are you a manufacturer or trading company?
A: We are a professional trading company focusing on marine equipment, parts and materials for more than15 years.
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A: We specialize in various ship parts and materials such as instruments, sensors, lighting fixtures, deck parts, safety equipment, navigation equipment, diesel engine, electrical equipment, and more.
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A: We source our ship parts and materials from reliable manufacturers and suppliers who meet our strict quality standards. We also conduct regular quality control checks to ensure that our products meet the industry's standards.
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A: Yes, we offer warranties for most of our products, depending on their type and application. The specific warranty period and terms will be discussed with our clients during the negotiation process.
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Q: How can clients contact you for inquiries and orders?
A: Clients can contact us through our website, email, phone, or visit our offices if they are located nearby. Our customer service team is always ready to assist with any inquiries or orders.
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