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Safety valve and rupture disc diameter specifications

2015-11-19View Original

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I would like to ask: On the drawing, the nominal specifications are DN50 PN40 and DN80 PN40. What is their purpose or name? They are safety valve ports and burst ports respectively. When purchasing a safety valve, is the diameter specification DN50? Is it sufficient to provide the model and diameter of the safety valve when making the purchase? When purchasing a burst disc, is the diameter specification DN80? Is it enough to provide the following parameters when making the purchase: 1. Type 2. Material 3. Burst pressure 4. Temperature 5. Diameter
Reply #22015-11-19
Generally, it is necessary to provide the data sheets for safety valves and rupture discs to enable the valve manufacturers to determine whether they are suitable
Reply #32015-11-19
It is necessary to provide information on the properties of the medium and the temperature, so as to facilitate the selection of the appropriate material for the safety valve. Additionally, the setting pressure of the safety valve, its discharge capacity, and relevant parameters of the flare line downstream of the safety valve are required. There’s not much need to consider the rupture disc either
Reply #42015-11-20
On the drawing, the nominal specification is DN50 PN40. Purpose or name: safety valve outlet. The nominal specification is DN80 PN40; purpose or name: rupture disc. Is the diameter specification for purchasing a safety valve DN50? The model of the safety valve is A42W-40R, and its operating pressure is 1.6 MPa. Are these details provided? Is the diameter specification for purchasing a rupture disc DN80? Are the following parameters sufficient when making a purchase: 1. Type, 2. Material, 3. Rupture pressure, 4. Temperature, 5. Diameter. These safety valves: specifications, models, diameter, shrapnel
Reply #52015-11-20
At the very least, you need to mention the type of interface: is it flanged, threaded, or welded? It’s a flange; the flange standard must be clearly indicated. Is the medium being discharged a liquid or a gas, and what is the discharge volume? Are there any other technical requirements, such as fire and static electricity protection?
Reply #62015-11-20
On the drawing, the nominal specification is DN50 PN40. Purpose or name: safety valve outlet. The nominal specification is DN80 PN40; purpose or name: rupture disc. Is the diameter specification for purchasing a safety valve DN50? The model of the safety valve is A42W-40R, and its operating pressure is 1.6 MPa. Are these details provided? Is the diameter specification for purchasing a rupture disc DN80? Are the following parameters sufficient when making a purchase: 1. Type, 2. Material, 3. Rupture pressure, 4. Temperature, 5. Diameter. Is it enough to just provide these?
Reply #72015-11-20
It is recommended that you search on Baidu for a safety valve data sheet, or check HG/T20519-2009 – this standard contains safety valve data sheets that specify the parameters required to be filled in
Reply #82015-11-20
On the drawing, the nominal specification is DN50 PN40. Purpose or name: safety valve outlet. Is the diameter of the safety valve DN50? Nominal specification: DN80 PN40. Purpose or name: burst disc outlet. Is the diameter of the burst disc DN80?
Reply #92016-10-09
A rupture disc must be provided. Based on the equipment’s operating pressure, operating temperature, design pressure, the type of medium used, and whether negative pressure is present, the appropriate model of rupture disc can be determined by calculating using these parameters. I deal in domestically produced rupture discs; feel free to contact me via QQ at 2407544568 if you have any questions or need assistance

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