|
Specification DN
|
Item
|
DN
|
L
|
L1
|
H
|
|
50
|
BVS50
|
50
|
660
|
300
|
780
|
|
63
|
BVS63
|
63
|
660
|
300
|
780
|
|
90
|
BVS90
|
90
|
730
|
370
|
890
|
|
110
|
BVS110
|
110
|
730
|
370
|
890
|
|
125
|
BVS125
|
125
|
730
|
370
|
890
|
|
160
|
BVS160
|
160
|
890
|
560
|
900
|
|
200
|
BVS200
|
200
|
890
|
560
|
900
|
|
250
|
BVS250
|
250
|
890
|
560
|
900
|
|
315
|
BVS315
|
315
|
1050
|
800
|
1120
|
Key Features
- Single purge design for pipeline cleaning and maintenance
- Full bore structure ensures zero flow restriction
- Anti-static construction meets gas safety regulations
- 100% air-tightness testing guarantees zero leakage
- UV stabilizers extend outdoor service life
Typical Applications
- Urban gas distribution networks
- LPG (liquefied petroleum gas) transmission lines
- Natural gas pressure regulating stations
- Industrial fuel gas supply systems
- CNG refueling station piping
Manufacturing Process
Integrated injection molding and precision machining
- Melt temperature control accuracy ±2°C
- Ball sphericity tolerance ≤0.05mm
- Sealing surface roughness Ra≤0.8μm
- Weld end ovality ≤1%
- Anti-static layer uniformity testing
Raw Material Characteristics
- Density: 0.955 - 0.965 g/cm³ (ISO 1183)
- Melt flow index: 0.15 - 0.4 g/10min (190°C/5kg)
- Slow crack growth resistance ≥500hrs (ISO 13479)
- Environmental stress cracking resistance ≥1000hrs (ASTM D1693)
- Electrical conductivity: >1×10⁻⁴ S/m (EN 1555)
- Gas pipeline maintenance isolation and section purging
- Connection nodes in new residential gas networks
- Control valves for LPG storage terminal outlets
- Industrial gas boiler feed regulation systems
- Emergency shutdown systems in gas distribution networks
