Shanghai Jianggong Valve Manufacturing Co., Ltd.
Shanghai Jianggong Valve Manufacturing Co., Ltd. Industrial valve expert With safe and reliable products To provide you with thoughtful services
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Highlight: Spring-loaded safety valve
Product introduction:
Safety valve, as the best device for extra-pressure protection, will automatically open and fully discharge to protect the equipment pressure from going on rise when medium’s pressure rises over the allowed valve and will automatically close when the pressure lowers to setting valve. This safety valve conforms with GB/T12243-2005 on its design, and flange connection dimensions of company with JB/T79-94 manufacture and acceptance etc. Technical standards. The bonnet of the sealed safety valve is enclosed in order to protect dust and other things from getting in and protect toxic and combustible medium from over-flow.and height of opening for a low lift safety valve 1/20-1/40 time the flow diameter.
Product technical parameters:
| Nominal diameter DN(mm) | DN25 | |
| Nominal pressure PN(MPa) | 1.6 | |
| Test pressure (MPa) | Strength test (Water) | 2.4 |
| Set pressure test (Air) | 0.9 | |
| Main component | Body | 1Cr18Ni9Ti |
| Bonnet | 1Cr18Ni9Ti | |
| Disc | 1Cr18Ni9Ti | |
| Spring | 50CrVA | |
| Stem | 1Cr18Ni9Ti | |
| Applicable medium | Water, air, petroleum gas and weak corrosive medium | |
| Working temperature | ≤300℃ | |
| Connection method | Flange connection | |
Product features:
1. This type of safety valve designed for the equipment and pipeline of petroleum gas, air water and corrosive medium what the working temperature are less than 200℃.
2. Economic design with large displacement.
3. Disc is equipped with a backflush disc component, the plane structure of the disc and seat is easy to repair and rework.
4. Small setting pressure deviation, up to ±3%.
5. High quality spring steel, ensure the life and stability of the spring.
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