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Fax: 86-577-85888877
Email: zhu.yuqing@zgkkv.com
Agent Hotline: 86-18523831111
Keyword： Spring Full Bore Type with Lever Safety Valve
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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.
A28H type 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/10R8 type are used for the equipment and pipeline of the quality with corrode medium what the working temperature are less than 200℃.Take for extra pressure protedion devices.
Materials For Main Parts
| NO. | Name of part | Materials | ||
| A28H | A28Y-P | A28Y-R | ||
| 1 | Body | Ht200 | CF8 | CF8M |
| 2 | Seat | 35 | CF8 | CF8M |
| 3 | Adjusting ring | 20Cr13 | 304 | 316 |
| 4 | Disc | 20Cr13 | 304 | 316 |
| 5 | Spring | 50CrVA | 50CrVA Coated Teflon | 50CrVA Coated |
| 6 | Stem | 20Cr13 | 20Cr13 | 304 |
| 7 | Adjusting bolt | 45 | 20Cr13 | 304 |
| 8 | Cap | ZG200-400 | ZG200-400 | CF8 |
| Sealing surface of material | D507 Depositing D507 | Co Depositing stellite | ||
Dimensions(mm)
| Nominal diameter | Dimensions(mm) | |||||
| do | Rc | G | L | L1 | H | |
| 15 | 10 | 1/2" | 3/4" | 37 | 65 | 196 |
| 20 | 12 | 3/4" | 1" | 40 | 70 | 215 |
| 25 | 15 | 1" | 11/4” | 45 | 78 | 234 |
| 32 | 20 | 11/4" | 11/2" | 60 | 90 | 302 |
| 40 | 25 | 11/2" | 2" | 67 | 105 | 326 |
| 50 | 32 | 2" | 21/2" | 76 | 115 | 348 |
| 65 | 40 | 21/2" | 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: zhu.yuqing@zgkkv.com
WhatsApp: +86-17757741891
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