Description
Flanged forged steel valve is mainly used on all kinds of pipeline systems in thermal power plant to cut off or connect medium in pipeline, such as water, steam, and other non-corrosive material. Compare with other valve products, our flanged valves feature high temperature and pressure resistance and unique self sealing design. Performance technology features and special working conditions make our valves irreplaceable.
Main Advantage
The Higher the Pressure, the More Reliable the Sealing
Classification of Flanged Valves
Flanged forged steel valves can be classified into forged steel check valve, forged steel gate valve, forged steel ball valve, forged steel globe valve, self sealing gate valve, self sealing globe valve, self sealing check valve, forged steel needle valve, forged steel insulation valve, high pressure forged steel gate valve, forged steel corrugated pipe valve, etc.
Installation
1. Mounting position, height and direction must conform to design requirements.
2. The connection joint should be solid and tight.
3. Handle of manual valve mounted on insulation pipe must not be installed downward.
4. The flanged forged steel valve with transmission mechanism must be installed according to requirement of operating instruction.
5. Before installation, flanged valve has to be inspected. For the valve working under pressure (more than 1.0 MPa) or in the main pipe (with function of interception), it must pass intensity and airtightness tests.
6. Hand wheel, handle and transmission mechanism are not allowed for lifting things.
7. Dirt or sand is forbidden in valve cavity and on sealing surface.
8. Bolts at each joint should be tightened evenly.
9. Packing area must be compressed tightly to ensure packing sealing and disc flexible opening.
10. Please avoid arbitrary collision and squeezing when using flanged forged steel valve.
11. Check if the valve type, connection dimension and medium flow direction are consistent with valve requirement.
12. Please reserve some necessary space for driving valve.
13. Wiring of drive device must be according to circuit diagram.
Maintenance
1. The valve that is not to install temporarily should be stored in dry and ventilated room, side flange of the flanged valve must be sealed.
2. The valve for long-term storage should be checked regularly. The surface of the valve must be clear of dirt and coated with anti-rust oil.
3. The following conditions of flanged forged steel valve should be inspected regularly after installation:
a) Wear pattern of sealing surface
b) Wear pattern of rotary rocker
c) Dirt accumulation between the inner chamber of the valve body and sealing surface
4. Sealing performance test should be implemented after every time maintenance and assembly of the flanged forged steel valve.
5. The valves should be maintained regularly.
6. Collision should be avoided for hand wheel, handle and transmission mechanism.
7. Please open the bypass valve in advance before opening the valve to balance the pressure differential and to decrease opening force.
8. If the valve opens and closes frequently, please lubricate it regularly (at least one time every month).
9. Double disc and flanged valves should be installed vertically, that is, stem is positioned vertically and hand wheel is at the top.
10. Flanged forged steel valve with transmission mechanism should be installed according to product manual.
Payment, Package, Delivery and Maintenance
1. Products can be paid by T/T, D/P, D/A, L/C or according to your requirement.
2. Items are packaged by standard exported wooden cases.
3. Our flanged valves are transported by sea, railway or air.
4. Guarantee period of our products is 18 months.
Lanteky Valve Industry is a professional manufacturer and supplier of flanged forged steel valves in China. Our main products cover ball valves, gate valves, globe valves, check valves and strainers. They are widely applied in tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and energy pipeline systems. Our flanged valves are exported to Brazil, Argentina, Mexico, Canada, Russia, Kazakhstan, Indonesia, South Korea, Japan, Australia, Bulgaria, Spain, France, England, Sweden, Dubai, Arab, Pakistan, South Africa, etc.
