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QW47-600LBL
DIDTEK
FWBV-FWBV-013
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Product Detail |
The Underground Fully Welded Extended Stem Ball Valve is a heavy-duty, zero-leakage isolation solution engineered specifically for direct-burial municipal gas distribution, long-distance oil and gas transmission pipelines, and district heating networks.
Product Parameters |
| Parameter Name | Parameter |
| Size Range | 20'' |
| Pressure Range | 600LB |
| Material | LF2 |
| Seal | Soft Seat: Devlon |
| Temperature Range | -29°C~100°C |
| Design According | API598 |
| End to End Dimension | ASME B16.10 |
| End Flanges | ASME B16.25 |
| End Connection Type | RF |
| Fire Safety | API607 |
| Inspection and Test | API 598 |
| Operate | Bare Stem |
| Body Type | Full Welded Ball Valve |
| Type of Valve | Trunnion Ball Valve |
| Suitable Medium | Water, Natual Gas, Oil and some corrosive liquid |
Design Description
Seamless Fully Welded Body: Eliminates external body-joint leak paths entirely, making it ideal for underground direct-burial installation without the need for expensive concrete valve vaults.
Subterranean Extended Stem: Elevates the stem packing, grease injection fittings, and actuation interface above ground or into accessible chambers for easy maintenance.
Trunnion-Mounted Fixed Ball: The ball is anchored by upper and lower trunnions, minimizing operating torque under high pipeline pressures and ensuring smooth, reliable bi-directional sealing.
Emergency Sealant Injection & Anti-Static: Equipped with emergency grease-sealing injection fittings on the stem and seats for quick in-line restoration, alongside anti-static grounding design.
Parameters |
| Brand | DIDTEK |
| Structure | Full Welded Ball Valve |
| Material | Aluminum-magnesium series anti-rust aluminum alloy |
| Type | Forged Ball Valve |
| Test | 100% quantity tested before delivery |
| Guarantee | 18 months after shipments and 12 months after installed |
| Delivery | 15 - 60 days |
| Sample | Sample Available by Didtek Valve |
| Color | Customer request |
| Packing | Plywood Case |
| MOQ | 1 Set |
| Certificate | API6D, CE, UKCA, ISO9001, TS, EAC, ISO15848, TA-LUFT, API607, API6FA etc. |
| Place of Origin | Zhejiang, China (Mainland) |
| Delivery Detail | Shipped in 15-30 days after payment |
| Port | Shanghai Or Ningbo |
| Payment Terms | L/C,D/A,D/P,T/T, Western Union |
Application & Function |
Gear Operator Free Forged LF2 Top Entry Ball Valve are widely utilized in demanding environments due to their superior material properties:
City Gas Distribution Networks: Underground main gas pipelines and branch isolation systems requiring direct burial.
Long-Distance Oil & Gas Transmission: Cross-country transmission pipelines handling natural gas, crude oil, and refined products.
District Heating & Power Plants: Subterranean hot water and steam transmission networks requiring insulated extended stems.
