Detailed Product Description
Spring full opening safety valve
Product details
A48Y type are used for the equipment and pipeline of the with steam and air etc medium what the working temperature are less than 350 oC.A44Y type are used for the equipment and pipeline of the with air and petroleum gas medium what the working temperature are less than 300oC .Take for extra pressure protection devices.
Flange connecting dimensions of comply with Standard series first of JB/T-94 when the pressure less than 6.4MPa,comply with Standard series two of JB/T-94 when more than 6.4MPa.
Materials for main parts
NO. name of part A48Y-C A44Y-C Materials A44y-p Materials A44Y-R Materials
1 Body WCB ZG1Cr18ni9Ti CF8M
2 Nozzle 2Cr13 1Cr18Ni9Ti 316
3 Adjusting ring ZG2Cr13 ZG1Cr18ni9Ti OCr18Ni12Mo2Ti
4 Disc holder ZG2Cr13 ZG1Cr18ni9Ti 316
5 Disc 2Cr13 1Cr18Ni9Ti 316
6 Guide sleeve 2Cr13 1Cr18Ni9Ti OCr18Ni12Mo2Ti
7 Bonnet ZG230-450 ZG230-450 ZG230-450
8 Spring 50CrVA 50CrVA Coaled Teflon
9 Stem 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
10 Lever ZG200-400 ZG200-400 ZG200-400
11 Adjusting bolt 45 2Cr13 2Cr13 12 Cap ZG200-400 ZG200-400 316
Sealing surface of material Depositing stellite
