Direct Buried Gate Valve
Product Overview
Direct Buried Gate Valve is a resilient seated underground isolation valve designed for buried pipeline systems. It provides reliable shut-off control with a non-rising stem and visual position indication.
Key Features
Resilient EPDM seat provides bubble-tight shut-off performance and minimizes leakage risk.
Non-rising stem (NRS) design reduces installation space requirements in buried systems.
Fusion-bonded epoxy coating improves corrosion resistance for long-term underground service.
Visual position indicator allows quick verification of valve open/close status during operation.
Ductile iron body construction provides high mechanical strength and impact resistance.
Technical Specifications
| Item | Specification |
| Valve Type | Resilient Seated Direct Buried Gate Valve |
| Stem Design | Non-Rising Stem (NRS) |
| End Connection | Flanged End |
| Flange Standard | ANSI (customizable) |
| Pressure Rating | 150LB |
| Working Temperature | -10°C to +80°C |
| Coating | Fusion-Bonded Epoxy |
| Indicator Function | Open/Close Visual Indicator |
| Handle Option | Lockable Handle Available |
| Compatible Accessories | Vertical Indicator Posts |
| Applicable Standards | UL, CUL, FM, AWWA |
Material Details
| Component | Material |
| Body | Ductile Iron GGG50 / ASTM A536 |
| Bonnet | Ductile Iron GGG50 / ASTM A536 |
| Gate Disc | Ductile Iron with EPDM Encapsulation |
| Seat | EPDM |
| Stem | Stainless Steel |
| Stem Nut | Brass / Bronze |
| O-ring Seals | EPDM / NBR |
| Bolts & Fasteners | Carbon Steel / Stainless Steel |
Application Scenarios
Buried potable water transmission pipelines
Municipal water distribution systems
Underground fire protection piping systems
Pump station inlet and outlet piping
Water treatment facility pipelines
Utility transmission networks
Underground branch line isolation systems
Long-distance buried pipeline installations
Quality Assurance
Raw material verification including chemical composition and mechanical property inspection
Dimensional inspection according to approved drawings and applicable standards
Hydrostatic shell testing for body pressure integrity verification
Seat leakage testing for sealing performance validation
Coating thickness inspection for fusion-bonded epoxy consistency control
Visual and surface inspection for casting quality and coating defects
Operation torque testing for opening and closing performance verification
UL, CUL, FM, and AWWA compliance verification where applicable
Customization Options
| Option | Available Customization |
| Logo Marking | Cast logo, laser marking, nameplate |
| Packaging | Plywood case, export carton, pallet packaging |
| Flange Standard | ANSI, DIN, BS, JIS, AS |
| Material Upgrade | Stainless steel stem grade upgrade, special elastomer options |
| Coating | FBE thickness customization, special anti-corrosion coating |
| Color | Blue, red, black or custom RAL code |
| Pressure Class | 150LB, PN10, PN16, PN25 |
| Buried Length | Customized according to installation requirements |
| Handle Type | Standard or lockable handle |
| Accessories | Vertical indicator posts and related fittings |
FAQ
Hot Tags: direct buried gate valve, China direct buried gate valve manufacturers, suppliers, factory, 2 Inch Flanged Gate Valve, Cast Iron Flanged Gate Valve, Direct Buried Gate Valve, Gate Valve with Rising Stem, Grooved Gate Valve, Underground Gate Valve
You Might Also Like
Send Inquiry