[Essential information]
Pneumatic knife gate valve is one of the most important varieties of
production process control valve. With the solenoid valve, switch
control can be completed, and the electric valve positioner can also be
used to complete the adjustment control. Users can choose according to
actual needs. The main body adopts cast steel, stainless steel and so
on. It is particularly suitable for the paper industry, chemical
industry, coal, sewage, sugar and other industries.
Connection mode | Clip type, lug type |
Cylinder form | Double action |
Control mode | Switching type, regulating type |
Gas pressure | Double action: 4~8bar, single function: 5~8bar |
Medium temperature | W1:-40~180 W2:-40~180 W3:-30~425 W4:-40~425 |
[Valve structure drawing]
[Standard parameter]
Design standard | API 600、API6D、ASME B16.34、GB/T 12234 |
Structural length | ASME B16.10、API6D、GB/T 12221 |
Connection standard | ASME B16.5、ASME B16.47、GB/T 9113、JB/T 79、HG/T 20592 |
Pressure test | API 598、GB/T 13927、JB/T 9092 |
Pressure temperature rating | ASME B16.34 、GB/T 12224 |
[Valve features]
1, the valve adopts integral design, the fluid resistance is small, flexible and convenient operation.
2,
manual knife gate valve, screw drive using double plane bearing design,
making the transmission friction greatly reduced, so that the valve
open easy and smooth.
3, knife gate valve sealing seat by movable
sealing, and the use of O ring preload preload to provide sealing seat
close to the valve, the amount of leakage is greatly reduced, in the
long-term use of seal pair with automatic wear compensation to improve
the service life.
4, fixed guide claw, no groove design, not easy to cause dielectric accumulation or blocking.
5,
valve seat can according to the needs of medium and condition, choose
the metal seal or soft sealing gate: chrome or by surface ion nitriding
treatment, the gate sealing surface more wear and longer service life;
soft sealing valve seat or optional PTFE enhanced PTFE seat or three
yuan, Ding Qing rubber, good sealing, corrosion resistance.
6, medium
wide range of adaptation: good sealing performance and economic,
practical, operation can be manual, pneumatic, electric, practical range
is very wide.
[Adaptive condition]
Knife
type pneumatic valve is the important executive mechanism of industrial
automation control system, remote centralized control can meet the
needs of computer program; now widely used in petroleum, chemical
industry, gas equipment, nuclear power equipment, water treatment, air
conditioning, iron and steel metallurgy, industrial furnace, canned
equipment, brewing equipment, drying equipment, vacuum equipment,
surface treatment, bio pharmaceutical, food machinery, textile,
papermaking and other industries, the preferred product is construction
of national defense construction, science and technology.