SONGO Stainless steel 304 thread type full opening safety valve for steam boiler pressure relief valve 200degree
Benefits Of Stainless steel 304 thread type full opening safety valve:
A28H type safety valve are used for the equipment and pipeline of the air, N2,H2 mixed gas vapour etc. medium what the working temperature are less than 200℃.A28Y-P/R type are used for the equipment and pipeline of the quality with corrode medium what the working temperature are less than 200C.Take for extra pressure protedtion devices.
Features Of Stainless steel 304 thread type full opening safety valve :
1). Simple structure, good sealing performance, and accurate opening pressure
2). High discharge capacity, small reseating pressure difference, and easy adjustment
3).The valve body is typically made of SS304 or WCB cast steel.
4).For systems with a nominal pressure of ≤ 1.6 MPa and a working temperature of ≤ 200℃, for media such as air, steam, water, etc.
Safety valve Materials for main parts:
| No. | Name of part | A28H Materials | A28Y-P Materials | A28Y-R Materials |
| 1 | Nozzle | 35 | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 2 | Body | HT200/WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 3 | Adjusting ring | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 4 | Disc | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 5 | Spring | 50CrVA | 50CrVA Coated Teflon | 50CrVA Coated Teflon |
| 6 | Stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 7 | Adjusting bolt | 45 | 2Cr13 | 2Cr13 |
| 8 | Cap | ZG230-450 | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| Sealing surface of material | Depositing D507 | Depositing stellite | Depositing stellite | |
Stainless steel 304 thread type full opening safety valve of dimension Drawing:
| Nominal diameter DN |
Dimensions(mm) | |||||
| do | R | G | L | L | ≈H | |
| 15 | 10 | 1/2" | 3/4" | 37 | 65 | 140 |
| 20 | 12 | 3/4" | 1" | 40 | 70 | 150 |
| 25 | 15 | 1" | 1 1/4" | 45 | 78 | 160 |
| 32 | 20 | 1 1/4" | 1 1/2" | 60 | 90 | 210 |
| 40 | 25 | 1 1/2" | 2" | 67 | 105 | 225 |
| 50 | 32 | 2" | 2 1/2" | 76 | 115 | 235 |
| 65 | 40 | 2 1/2" | 3" | 110 | 145 | 370 |
| 80 | 50 | 3" | 4" | 110 | 145 | 410 |
Good Feedback From 12382 Clients:
No Worries After Buy Our Valves With Our Engineers:
Frequently Asked Questions:
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.