Cast Steel Valve Marine Flanged Stop Check For Oil Water Inlet
Outlet Control
Specification
| nominalpressure(MPa) | nominaldiameter(mm) | applicablemedium |
| 1 | 65~300 | Freshwater,Lubricantingoil,Fueloil,t≤300Csteam. |
| 1.6 | 65~250 |
| 2.5 | 20~150 |
| 4 | 65~100 | Freshwater,Lubricantingoil,Fueloil,t≤400Csteam. |
| 6.4 | 20~50 |
| partsname | material |
| name | trademark |
| body,cover | caststeel | ZG275--485 |
| disc | high-qualitycarbonsteel | 20# |
| stem | stainlesssteel | 2Cr13 |
| discsealring | weldstainlesssteel | E410 |
| PN≤2.5 | weldstainlesssteel | E347 |
| bodysealring |
| PN≤4.0 | weldstainlesssteel | E347 |
Check valve
1. This kind of valve is used to prevent the medium from flowing
back, using the kinetic energy of the fluid itself to open by
itself, and automatically close when flowing in the reverse
direction.
2. Standing at the outlet of the water pump, the outlet of the
steam trap and other places where the reverse flow of fluid is not
allowed.
3. There are three types of check valves: swing type, lift type and
wafer type. For the swing check valve, when the fluid can only flow
from left to right, it will automatically close when it flows in
the reverse direction.
4. For the lift check valve, when the fluid flows from left to
right, the valve core is lifted to form a passage.
5. When the flow is reversed, the valve core is pressed to the
valve seat and closed. For the wafer check valve, when the fluid
flows from left to right, the valve core is opened to form a
passage.
6. When the flow is reversed, the valve core is pressed to the seat
and closed.
7. The wafer check valve can be multiple positions Installation,
small size, light weight and compact structure.
The valve is a control component in the fluid conveying system,
which has the functions of cut-off, regulation, diversion,
prevention of reverse flow, stabilization, diversion or overflow
and pressure relief. Valves used in fluid control systems, from the
simplest shut-off valves to the various valves used in extremely
complex automatic control systems, have a wide variety and
specifications.
Valves can be used to control the flow of various types of fluids
such as air, water, steam, various corrosive media, mud, oil,
liquid metal and radioactive media. Valves are also divided into
cast iron valves, cast steel valves, stainless steel valves (201,
304, 316, etc.) according to materials, chromium molybdenum steel
valves, chromium molybdenum vanadium steel valves, duplex steel
valves, plastic valves, non-standard customized valves, etc.
Types of valve:
| · Marine butterfly valve |
| · Ship gate valve |
| · Marine globe valve |
| · Marine check valve |
| · Marine access valve |
| · Marine trap valve |
| · Marine regulating valve |
| · Marine filter |
| · Marine safety valve |
| · Marine quick closing valve |
| · Marine self closing valve |
| · Other marine valves |
| · Marine anti wave valve |
