- Model NO.: DN25-DN300
- Material: A351 CF8, A351 CF8m, A182f304, A182f316,A105, A216
- Pressure: High Pressure
- Seal Surface: Parallel Gate Valve
- Usage: Regulation, Safety, Flow Control
- Application: Industrial Usage, Oil,Gas,Petrochemical
- National Patent: Zl20152.0837711.4
- Transport Package: Packing with Plywood Case
- Origin: China
- Type: Straight-through
- Connection Form: Flange,Weld
- Actuator: Manual,Pneumatic,Electric
- Thread Position of Valve Rod: Outside Gate Valve
- Standard: ANSI
- Certificates: Ce,Ts,API,ISO9001
- Trademark: neutral brand or customizable
- Specification: DN25-DN300
- HS Code: 8481804090
Standard for gate valves:
Design manufacture standard: API 6D
Length of structure: API 6D
Flange connecting end: ASME B16.5/ASME B16.47
Butt welding connecting end: ASME B16.25
Wall thickness: ASME B16.34
Inspection and test: API 6D
Pressure and temperature rating: ASME B16.34
Product scope: NPS 2inch-NPS 40inch,CL150
Main body material:WCB,LCB,WCC,WC6,WC9,CF8,CF8M,CF3,CF3M,A890 4A etc.
Drive device: handle, bevel gear, electric, pneumatic, etc.
Connection: flange, weld
Size: DN25-DN300
Pressre Class: 900LB, 1500LB, 2000LB, 2500LB
Part list: check the SPECS below.
Main Features:
1) The seat ring uses the floating seat ring structure with O-seal ring sealed and pre-tightening force applied to have inlet and outlet dual-way sealed, and the open-close moment with this structure is 1/2 that of the common valves only, able to lightly open and close valve.
2) When fully opened, the valve's channel is smooth and linear,with an extremely small flow resisting coefficient and no pressure loss ,and the pipeline can be cleaned with hair-ball through it .
3) Automatic removal of the high pressure in the internal cavity when the valve is about to close so as to ensure safety.
4) Fully sealed structure leaves a good protective property, suitable for the requirement of 24-hour duty.
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Main material | WCB, WCC, LCB, CF8, CF8M, CF3, CF3M, CN7M, CF8C, 4A, A105, LF2, F304, F316, F304L, F316L, F321, F51, ect. |
Pressure rating | Class 150 to Class 2500 (PN2.5 to PN 42) |
Standards applied | API. ASME, ANSI, NACE, CE/ EN, DIN, JIS, BS, ISO, TS, GB, etc. |
Operative temperature | -196 °C to 980 °C ( -320.8 °F to 1796 °F) |
Optional operation | Manual, Gear, Electric, Pneumatic, Hydraulic. |
MATERIALS
Main materials | Â | Â | Â | |
Body | A216-WCB | A352-LCB | A351-CF8 | A351-CF8M |
Seat | A105+PTFE | LF2+PTFE | A182-F304+PTFE | A182-F316+PTFE |
Disc | 16Mn+ENP | A352-LCB+ENP | A351-304 | A351-316 |
Stem | A276-420 | A182-F304 | A182-F304 | A182-F316 |
Packing | PTFE | PTFE | PTFE | PTFE |
SPECS.
Test pressure at constant temperature (Mpa) | Applicable | Applicable medium | ||||
The shell | The left | The right | Air low | temperature | Ordinary | Anti-sulfur |
pressure | Â | |||||
3 | 2.2 | 2.2 | 0.6 | Â | Â | Petroleum |
7.5 | 5.5 | 5.5 | 0.6 | Â | Petroleum | Natural gas |
9.6 | 7.04 |  | 0.6 | -29~121°C | Natural | Water |
15 | 11 | 11 | 0.6 | Or upon the | Gas, water | etc, containing |
22.5 | 17.5 | 17.5 | 0.6 | User requirement | non-corrosive | H2S, CO2 |
37.5 | 27.5 | 27.5 | 0.6 | Â | media | Corrosive |
63 | 46.2 | 46.2 | 0.6 | Â | Â | media |
Warm Reminder: more complete drawing and technical specs pls contact us to get.
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