Valves & Parts
Telescopic Resilient Seat Gate Valve
Combining the robust bubble-tight shutoff of a resilient seated gate valve with a built-in telescopic expansion sleeve. Perfect for water supply, firefighting, and HVAC lines, allowing easy installation, pipe thermal expansion adjustment, and fast valve replacement.
Key Features
- Dual function: bubble-tight fluid shutoff + pipeline expansion compensation
- Fully EPDM rubber encapsulated wedge for zero leakage
- Telescopic expansion joint simplifies valve installation and replacement
- Non-toxic epoxy resin coating inside and out
Technical Specifications
- Nominal Diameter
- DN50 - DN600
- Nominal Pressure
- 1.0 MPa / 1.6 MPa
- Telescopic Range
- ± 25mm (Expansion compensation)
- Body Material
- Ductile Iron QT450
- Applicable Medium
- Water, Sewage, Firefighting water
Parts & Materials List
- Main Body & Bonnet
- Ductile Iron (QT450-10)
- Telescopic Sleeve
- Carbon Steel Q235 / Ductile Iron
- Wedge Core
- Ductile Iron QT450 with EPDM rubber fully coated
- Sealing Glands
- NBR / Brass / Stainless Steel
Applications
- Water supply & distribution
- Wastewater and sewage networks
- Industrial process pipelines
- HVAC systems
Quality & Testing
100% shell and seat pressure testing per GB/T13927 or EN 12266-1; epoxy resin coating tested for corrosion resistance.
Frequently Asked Questions
What does the built-in telescopic sleeve do?
It provides ±25 mm expansion compensation, absorbing pipe thermal movement and settlement so the valve body is not stressed — and it allows the valve to be replaced without cutting the pipe.
How is the Z41X-T different from a standard resilient seat gate valve?
It combines bubble-tight shutoff and pipeline expansion compensation in one unit, so you install one valve instead of a valve plus a separate expansion joint.
What sizes and pressures are available for the telescopic gate valve?
DN50 to DN600 at 1.0 or 1.6 MPa, in ductile iron QT450 with a fully EPDM-encapsulated wedge, for water supply, firefighting and HVAC lines.
Which media are suitable for the Z41X-T?
Water, sewage and firefighting water. The non-toxic epoxy coating inside and out keeps it suitable for potable service as well as drainage lines.
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