Product description
SF series of Teflon control valve is a kind of PTFE single-seat regulating valve is one of the characteristics of the company products. Many problems for strong corrosive medium valve short life, poor performance and obtain research results. It adopts the single-seat valve structure, will "corrosion king" Teflon material embedded in the inner cavity of the valve body, ensure the parts in contact with the media are PTFE material, has good corrosion resistance, small volume, light weight, balance of movement, reliable, widely applicable to all kinds of strong corrosive media occasions, such as hydrochloric acid chlorine, etc..
2, considering the optimization of large diameter occasions (DN ≥ 65) suggested the use of fluorine corrosion resistant ball (ball valve special for water treatment); high temperature and high pressure and water is not clean medium strong corrosion should be used where corrosion resistant alloy valve.
3, the main parameters of note: the working temperature, the nominal pressure, nominal diameter exceeds the scope of list of products can be solved with the company to negotiate. 4, the main technical performance indicators leakage rate: Ⅵ level, zero leakage return difference: 3610l actuator was 2%, with PSL actuator is 1%
The basic error: 3610l actuator is ± 2%, with PSL actuator is ± 1% note: test using standard packing for PTFE packing.
5, the main components of materials
Body material: zg230-450+f4, zg1cr18ni9ti+f4 etc.
The core base material: PTFE packing material: Teflon
6, material applicability: PTFE foreign language called F4, ptfe. The high temperature resistant performance is good, can be in -250 ～ 260℃ long-term use temperature range. In addition to the alkali metal under high temperature and high fluorine and molten have a corrosive effect on it, some of aromatic halide or make a slight expansion, such as strong acids (including concentrated nitric acid and aqua regia), alkali, strong oxidant, grease, ketone, ether, alcohol, even at high temperatures it is not play a role.
7, to allow pressure note: (1) the gray shading part data standard conditions to allow pressure data, the actual allocation according to the specific technical parameters. (2) if the allowable voltage difference is unclear or the maximum working pressure exceeds the scope of list, please contact us, take appropriate method can solve.
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