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China Suppliers Factory T Key Operation Extended Stem Gate Valve for Underground Use - Resilient Seated Z41X Series
Valve Type
Resilient seat gate valve
Structure
Non-rising type
Standard
DIN F4
Workmanship
Investment casting
Sealing direction
Bidirectional
Sealing grade
Zero leakage
Temperature
-20°C < T < 120°C
Operation
Handwheel
Characteristics
This T-key extended stem buried gate valve is made of epoxy coated ductile iron against soil corrosion and ground settlement. Customizable long stem with T-shaped head allows easy operation with matched wrench without road excavation. Full bore soft seal design provides tight zero leakage and low flow resistance, widely applied in deep buried water supply, fire protection and irrigation underground pipeline projects.
Advantages
1. T-shaped operating head bears force evenly, matching standard T-wrench for labor-saving operation, easier to handle than square head with common municipal maintenance tools.
2. Customizable extended stem fits different burial depths, solving operation problems of deep buried pipelines with wide application range.
3. Ductile iron body resists pressure and soil corrosion. Elastic soft seal achieves stable zero leakage with low failure rate for long underground service.
Packing
Standard export wooden case packaging
Application Scenarios
The T key operation gate valve is deep buried municipal water supply pipelines, underground fire mains, residential buried water pipes, farmland irrigation and industrial park underground water pipelines.
Frequently Asked Questions (FAQ)
What is the advantage of a T-key operating head for underground gate valves?
The T-shaped operating head distributes force evenly and matches standard T-wrenches. This enables labor-saving valve operation from the ground surface without requiring costly road excavation during municipal maintenance.
Can the valve stem length be customized for deep pipeline installations?
Yes, the extended stem is fully customizable to adapt to various pipeline burial depths, solving operational challenges for deep-buried water infrastructure.
What standard and structure specifications does this gate valve follow?
This resilient seat gate valve complies with the DIN F4 standard, features a non-rising stem structure, and is produced using precision investment casting workmanship.
How does the valve handle underground corrosion and ground settlement?
The valve body is crafted from high-strength ductile iron coated with protective epoxy, offering high resistance to soil corrosion, physical pressure, and environmental settlement.
What is the sealing grade and operating temperature range?
The valve features a bidirectional elastic soft seal design delivering zero leakage performance, operating reliably within a temperature range of -20°C < T < 120°C.