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Keyword： A28 Threaded Full-opening Spring Safety Valve with Wrench
Classification:
A28 Threaded Full-opening Spring Safety Valve with Wrench
Size Range: 1/2" ~ 3"
Pressure Rating: PN10 ~ PN40
Temperature Range: ≤200℃
Connection Type: Threaded
Material: Carbon steel / Stainless steel / Bronze/ Cast Iron
Operation: Automatic Full-Lift, Manual Lever for Testing
Suitable Medium: Air, Steam, Liquid, N2 H2 Mixed Gas, Corrosive Medium
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Details
Our products now cover a wide range of standardized fluid control products that can be adapted to a variety of drive modes, comprising ball valves, butterfly valves, gate valves, globe valves, check valves, safety valves, rotary ball valves, plunger valves etc. Our products are widely used in water conservancy, municipal, electric power, gas, petrochemical, coal chemical, energy, environmental protection, medicine, real estate, metallurgy, mining and many other fields.
| A28 Series Models | ||||
| A28H-10 | A28H-16 | A28Y-10P | A28Y-16P | A28Y-10R8 |
| A28Y-16R8 | A28Y-25R8 | A28Y-25R8 | A28Y-40R8 | A28Y-40R8 |
| Materials for Main Parts | ||||
| Name of Part | A28H | A28Y-P | A28Y-R₈ | |
| 1 | Body | HT200 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 2 | Seat | 35 | 2Cr13 | 1Cr18Ni9Ti |
| 3 | Adjusting Ring | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 4 | Disc | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 5 | Spring | 50CrVA | 1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE | 1Cr18Ni12Mo2Ti |
| 6 | Stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 7 | Adjusting Bolt | 45 | 50CrVA, Teflon Coated | 50CrVA, Teflon Coated |
| 8 | Cap | ZG200-400 | 2Cr13 | 1Cr18Ni9Ti |
| 9 | Sealing surface of material | Depositing D507 | Depositing Stellite | |
| Dimensions (mm) | ||||||
| Nominal Diameter (DN) | do | R | Rc | L | L₁ | H |
| 15 | 10 | 1/2＂ | 3/4＂ | 37 | 65 | 196 |
| 20 | 12 | 3/4＂ | 1＂ | 40 | 70 | 215 |
| 25 | 15 | 1＂ | 1 1/4＂ | 45 | 78 | 234 |
| 32 | 20 | 1 1/4＂ | 1 1/2＂ | 60 | 90 | 302 |
| 40 | 25 | 1 1/2＂ | 2＂ | 67 | 105 | 326 |
| 50 | 32 | 2＂ | 2 1/2＂ | 76 | 115 | 348 |
| 65 | 40 | 2 1/2＂ | 3＂ | 110 | 145 | 370 |
| 80 | 50 | 3＂ | 4＂ | 110 | 145 | 410 |
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Address: No. 4900 Binhai 3rd Road, Longwan District, Wenzhou City, Zhejiang Province
Production Base: No.11 Xu'an Industrial Zone, Qingtian County, Lishui City
Phone: +86-577-86569666/85986466
Fax: +86-577-85888877
Email: hu.boyu@zgkkv.com
Agent Hotline: +86-13736331987
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