AQ802V-40C-△□” Full Lift Safety Valve Specially Used in Powder Lot Vehicle/Powder Tank Truck (2021 Upgraded product)-China top 10 valve Manufacturers, Suppliers, Factory

I. Pain Points and Solutions
01. Air leakage, unable to seal
Solution:
① Change the original hard sealing to soft sealing to improve the sealing effect [Figure 1]
② Conical valve seat structure, valve seat contacts valve disc line, not conducive to the retention of dirt. It can protect the sealing surface to a certain extent, prevent damage, and improve the sealing effect at the same time [Figure 2]

02. No exhaust (no lift)
Solution:
① Install a dust cover at the outlet to prevent cement powder from condensing in humid air and sticking to the valve disc [Figure 3]
② Conical valve seat structure, valve seat contacts valve disc line, reduce the adhesion between the valve seat and valve disc [Figure 2]

03. Opening pressure too high
Solution:
① Install a dust cover at the outlet to prevent cement powder from condensing in humid air and sticking to the valve disc [Figure 3]
② Conical valve seat structure, valve seat contacts valve disc line, reduce the adhesion between the valve seat and valve disc [Figure 2]
③ Mark the position of the adjusting screw corresponding to the setting pressure with a marking line to prevent unauthorized adjustment [Figure 4]

II. Benefits and Trial Effects
01. Reduce after-sales frequency and improve usage effectiveness without increasing costs
02.Comply with the latest industry standard JT/T1332-2020 "Powder Material Transport Semi Trailer" 4.3.3.2 requirements for safety valves
03.After a customer tried it out, there was a significant reduction in after-sales service

Features

01. Specialized type---Safety valve specially used in powder lot vehicle/powder tank truck , 2021 new upgraded product
02. Nominal diameter: DN40, nominal pressure: PN16bar
03.Applicable medium temperature: Ⅲd Type -9～150℃
04.Applicable medium: Air, nitrogen, etc., leakage: 0ml/min
05.Spring full lift type, valve disc value lift 6.3mm
06.Valve disc sealing material: Fluororubber (VITON, code:V)
07.Installation method: Must be installed vertically upwards, otherwise valve core will return to the seat abnormally
08.Setting pressure: Normal 2.2bar, special customized according to users' requirements
09.Setting pressure allowable deviation: ±0.15bar, pressure level:1.6～2.5bar
10.Discharge coefficient:0.75, discharge pressure:≤1.1 setting pressure, reseating pressure:≥75% setting pressure
11.No handle, fully closed, to prevent abnormal opening of the safety valve due to vehicle vibration
12.Inlet male thread, with adjusting rings, which can adjust the reseating pressure and discharge pressure
13.There is a dust cover at the outlet to prevent cement powder from entering and sticking to the valve core, as shown in the colored image on the right
14.△[Conical] valve seat structure, contact between valve seat and valve disc line, not conducive to the retention of dirt. It can protect the sealing surface to a certain extent from damage. The valve disc is sealed with fluororubber, with good sealing performance

Component Material Table