G1610Coal chemical special lock slag, lock bucket valve and flushing water valve are designed specifically for high-temperature slag water containing solid slag and ash powder in coal chemical processes. The harsh medium has a significant impact on the flow channel of the valve body, and causes greater erosion and wear on the valve's ball, seat and other moving parts and sealing surfaces,G1610The internal components of the slag lock valve must undergo high-tech hardening treatment to give the valve high wear resistance. In addition to considering the hardness of the hardened material, it is more important to consider the hardening process of the product in order to achieve requirements for other indices besides the hardness index, such as thickness, bonding strength with the substrate, hardness value and bonding strength under sudden temperature changes, local super large pressure factors, and local large particle factors. Due to the cycle of slag collection and discharge being30Therefore, in normal production, the opening and closing frequency of this valve is frequent, with large alternating changes from high pressure to low pressure and high temperature to low temperature. In addition to the excellent service life and high sealing level of standard products, it is also necessary to consider the design, manufacturing, and testing processes that fully meet the harsh working conditions of the valve.

The ball and valve seat of the gasifier slag lock valve are completely sealed in a metal to metal manner. In order to ensure reliable sealing of the valve at various temperatures and pressures, various advanced hardening technologies for the ball and valve seat can be used according to the different usage conditions and requirements of users, including supersonic spraying, nickel based spraying welding, surface special hardening, hard alloy spraying welding, and the use of high-strength hardness ceramic materials. The surface hardness of the ball and valve seatHRC≥64, up to a maximum ofHRC74above. The sealing surface material generally has a temperature resistance of up to540℃, up to a maximum of980The structural strength of the ℃ material can reach10000PSIabove. The sealing surface material also has good friction resistance.

The valve can also be embedded with the ball flow channel according to special working conditions420perhapsSAF2205The inner lining method effectively enhances the wear resistance of the valve.

1.Nominal diameter:DN300、DN350、DN400、DN450、DN500

2.Nominal pressure:ANSI CLASS600、900

3.Connection method: flange type（RF、RJ）

4.Core form: fixed ball full diameter or reduced diameter

5.Applicable temperature range:-46℃~+550℃

6.Leakage level: meets the standardANSI FCI 70-2；CLASS VIVlevel/API598Or according to user requirements.

7.Applicable medium: Solid slag/High temperature slag water with ash content

8.Structural form: Two body valve body structure

9.Drive form: cylinder; hydraulic pressure; Manual optional

10.Execution mechanism: Import single acting and double acting fork type execution mechanism

11.Attachment: Filter pressure reducing valve, locator, gas source expander, accelerator, etc. to meet the requirements of fast action time, etc