Open Bonnet Safety Valve, ASTM A216 WCB, DN50*DN65, PN16, RF

Product Name: Open Bonnet Safety Valves
Type: Full Lift Safety Valve, Open Bonnet, with Lever
Design Standard: API 526
Body Material: ASTM A216 WCB, Cast Carbon Steel
Inlet Size: DN50
Outlet Size: DN65
Nominal Pressure: PN16
Setting Pressure: 10 bar
End Connection: RF Flanged
Medium: Steam, Gas

Safety valve, as the best device for extra-pressure protection, will automatically pen and fully discharge to protect the equipment pressure from going on rise when medium's pressure rises over the allowed value and will automatically close when the pressure lowers to the setting value manufacture and acceptance etc. technical standards. The bonnet of the sealed safety valve is enclosed in order to protect dust and foreign matters from getting in and protect toxic and combustible media from over-flow, while the opened bonnet of the open-type safety valve, which benefits to lower the temperature inside of the spring chamber. is mainly used for the pipeline and container with steam medium and the safety valve with radiator is suitable for the medium with a temperature over 350°C. For the safety valve with a lever, it can be opened manually with the lever when the medium's pressure is up to over 75% of that at which the valve opens. Full-bore safety valve's height of opening 1/4 time the flow diameter with a large amount of discharge, the height of opening for lift safety valve 1/20-1/40 time the flow diameter.

Technical Specification

» Product model: A48Y

» Normal Size Range: 1/2-16 Inch (DN15-DN400)

» Normal Pressure Rating: Class 150-600 LB (PN10-PN100)

 » Design and Manufacture: GB/T 12243-1989, API RP 520, 521, API 526, API 527

» Face to face(end to end): GB/T 14087, JB/T 6441, JB/T 2203, JB/T 9624, JB/T 53170 

» Flanged connection: ASME B16.5, DIN 2543-2545, EN 12627

» Test and inspection: API 598, DIN 3230, MSS SP-117

» Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex or Other Specials

» Ends Connections: RF Flanged

Key Features

» Connection of inlet and outlet is flange type, to make installation and maintenance easy.

» Perfect guide design provides well alignment, to ensure that the operation of valve is agile and stable.

» The selected materials are of high performance, which can be used in high temperature condition.

» The nozzle and disc is faced with stellite, and lapped precisely.

» Spring is produced through excellent technology, and tested under simulative service condition.