High Quality for Air Actuated Gate Valve - Flat Gate Valve Parallel Slide valve – BVMC
High Quality for Air Actuated Gate Valve - Flat Gate Valve Parallel Slide valve – BVMC Detail:
Introduction
Through conduit valves are widely used for oil and gas pipeline service. This type of valve has such function that, when fully opened, media passage capability superior to valves in use for general secondary process line, it can also be capable for pig ball Cleaning service. BVMC through conduit gate valves are available in Slab Gate and Expanding Gate design and both are fully comply with API 6D standard.
Slab Gate Valve
Slab gate valve is simple in design but efficient in performance. This design utilizes two spring loaded floating seats which are pressure energized, moving the upstream seat in contact with the gate that brings about a tight and complete seal with both the upstream and downstream.
Technical Specification
| Structural reference | GB | API | |
| Design standard | JB/T5298 GB/T19672 | API6D ASME B16.34 |
|
| Structural length | Flanged | GB/T 12221 GB/T19672. JB/T5298 |
API6D ASME B16.10 |
| Welded connection | GB/T12221 GB/T19672 | ||
| Flanged ends | GB/T9113 JB/T79 | ASME B16.5 MSS SP44 | |
| Butt-welding ends | GB/T 12224 | ASMEB16.25 | |
| Test & inspection | GB/T13927 JB/T9092 | API6D API598 | |
Note: The sizes of valve connecting flange can be designed according to customer’s requirement.
Major Parts Material Form
|
No. |
Part name |
Material | ||||||
| Ordinary type | Anti-sulphur type | |||||||
| GB | ASTM | GB | ASTM | |||||
| 1 | Blow down stops | 25+Zn | A105+Zn | 12Cr18Ni9 | A276-304 | |||
| 2 | Grease injection joint | 25+Zn | A105+Zn | 25+Zn | A105+Zn | |||
| 3 | Body | WCB | A216-WCB | WCB | A216-WCB | |||
| 4 | Disc | 16Mn+ENP | A105+ENP | 12Cr18Ni9 | A276-304 | |||
| 5 | Seat | 16Mn+PTFE | A105+PTFE | 12Cr18Ni9+PTFE | A276-304+PTFE | |||
| 6 | O-ring | NBR | NBR | FPM | FPM | |||
| 7 | Stem | 2Cr13 | A276-420 | 12Cr18Ni9 | A276-304 | |||
| 8 | Packing seat | 2Cr13 | A276-420 | 2Cr13 | A276-420 | |||
| 9 | “Y” ring | NBR | NBR | FPM | FPM | |||
| 10 | Sealing shroud | 20Cr13 | A276-420 | 2Cr13 | A276-420 | |||
| 11 | Indicating stem | 12Cr18Ni9 | A276-304 | 12Cr18Ni9 | A276-304 | |||
| 12 | Gasket | Graphite+1Cr18N9 |
Graphite+304 |
Graphite+1Cr18N9 | Graphite+304 | |||
| 13 | Bonnet | WCB | A216-WCB | WCB | A216-WCB | |||
| 14 | Stud | 35CrMoA | A193-B7 | 35CrMoA | A193-B7 | |||
| 15 | Nut | 45 | A194-2H | 45 | A194-2H | |||
| 16 | Yoke | WCB | A216-WCB | WCB | A216-WCB | |||
Product detail pictures:
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