Gear Operate Metal to Metal Seat Ball Valve
MAIN FEATURES
Seat of metal to metal ball valves have special protection and tight shut-off design to be applied to some poor conditions, such as high- temperate, high pressure and abrasive mediums, to fully solve the problem of inner leakage and outer leakage, and ensure reliable sealing with zero leakage.
Design Features
Advanced rocket-spraying process ensures that sealing is realiable under all temperatures - pressures. With hydrogen used as fuel, this process has been applied to the sealing faces of the ball and the valve seats;
Double block and bleed;
Cavity pressure self relief;
Blowout-proof stem;
Seats are Tungsten Carbide HVOF(High Velocity Oxy Fuel) or overlay cladding coated with metal to metal contact between seats and ball, with metal to metal seat sealing characteristics, and it can clean dirt at surface of the gates.
Hardness of coating surface: up to HRC68~ 72;
Bonding strength of coating: ≥10000Psi;
Thickness of coating: 0.3 - 0.5 mm;
The precise "one-to-one" grinding process ensures the precise "one-to-one" grinding between the ball and the valve seat;
Product Range
Body material: carbon steel, stainless steel, alloy steel, dual-phase steel
Nominal diameter:2"~32"
Pressure range:Class150~2500
End connection: RF, RTJ, BW
Working temperature:-29ºC~+560ºC
Operation : wrench, worm gear, electric, pneumatic actuator, gas over oil actuator, electro-hydraulic actuator , etc.
| DN(mm) |
50-1200 |
| PN(MPa) |
1.6 |
2.5 |
4.0 |
| Test |
Strength |
2.4 |
|
3.75 |
|
6.4 |
| Sealing |
1.8 |
2.75 |
4.4 |
| Material code |
C |
P |
R |
| Major parts |
Body |
A105 |
|
ZG1Cr18Ni9Ti |
|
ZG1Cr18Ni12Mo2Ti |
| Plate |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
| Stem |
2Cr13 |
|
1Cr18Ni9Ti |
|
1Cr18Ni12Mo2Ti |
| Sealing ring |
RPTFE |
PPL |
| |
|
| Filling |
PTFE |
Flexible graphite |
| Working conditions |
Medium |
Water,gas ,oil |
Nitric acid |
Acetic acid |
| Temperature |
-28ºC~300ºC |
| Actutor |
Type |
GT Or AW Series |
| Air pressure |
0.3-0.7MPa |
Certificates & Test reports
Packing&Shipping
FAQ
Q:Are you a trading company or a manufacturer?
We are a manufacturer with a 13,000 square metre factory.
Q:Can you provide assembly drawings?
Yes, we will provide the relevant drawings as soon as possible if you need them.
Q:How do you guarantee the quality of your products?
A: Before the products leave the factory, our quality inspectors will inspect each product before shipment to ensure the pass rate.
Q: Can you produce different standard valves according to customers' requirements?
A: Yes, please provide specific details, such as model, size, pressure, material and so on.
Q:How long is your delivery time?
A: Usually 15-30 days, it depends on the order quantity and our storage.
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