High-Quality Buried Elastic Seat Gate Valve for Reliable Flow Control Supplier, Factories

Buried (lengthening rod) elastic seat seal gate valve can be maintenance free and extend the valve stem design scheme, one-time buried, to avoid the expensive cost of the valve well and the huge investment brought by many road modifications and valve replacement, beautify the road environment, crush resistance, to avoid the loss of manhole cover caused by safety accidents. The valve stem can be expanded and retractable according to the depth of the valve well. The valve stem top of the buried (lengthening rod) elastic seat seal gate valve is provided with a valve switch display, which can be equipped with a signal remote transmission device and a valve switch locking device.

Product Description

Product Overview & Models

FUV TYPE

FUV TYPE

Fire buried (telescopic rod) elastic seat seal gate valve group

WUV TYPE

WUV TYPE

Water supply buried (telescopic rod) elastic seat seal gate valve group

RVZM-MZ45X-16

RVZM/MZ45X-16

Buried (extended rod) elastic seat gate valve

Product Features

The design scheme of maintenance-free and extended valve stem is adopted, which can be buried underground at one time, avoiding the expensive cost of valve combination and the huge investment caused by multiple road reconstruction and valve replacement. It beautifies the road environment, resists rolling, and avoids safety accidents caused by the loss of manhole covers. The valve stem can be freely extended and retracted according to the depth of the valve well. The valve switch display is set on the top of the valve stem, and a signal remote transmission device and a valve mis-opening locking device can be installed.

Main Performance Specifications

Nominal Pressure PN Applicable Media Operating Temperature (℃)
0.6 / 1.0 / 1.6 / 2.5 MPa Cold water, hot water, oil, gas Natural rubber ≤ 80
NBR ≤ 80
EPDM ≤ 120
Silicone Rubber ≤ 160
Natural food rubber ≤ 80

Main Component Material & Technical Parameters

No Component Name Material
1 Valve body Ductile iron, plastic sprayed
2 Valve plate Ductile iron, full rubber coating
3 Valve stem 304, 2Gr13 / 45# Chrome plated steel
4 Bolt Galvanized steel
5 O-ring NBR
6 Thrust bearing Brass, Steel
7 Valve cover Ductile iron
8 Handwheel Steel, cast iron, plastic spraying
Item / Parameter Specification Standard 1 Specification Standard 2
Nominal pressure 1.0MPa (10kgf/cm2) 1.6MPa (16kgf/cm2)
Nominal diameter 40 to 500mm 40 ~ 500mm
Seal test pressure 1.1MPa (11kgf/cm2) 1.76MPa (17.6kgf/cm2)
Strength experimental pressure 1.5MPa (15kgf/cm2) 2.4MPa (24kgf/cm2)
Applicable temperature 0-80 ºC 0-80 ºC
Applicable media Water, sewage, non-corrosive liquids Water, sewage, non-corrosive liquids
Drive method Manual Manual
We can also provide products with special technical parameters according to customer requirements

Packaging & Delivery

Frequently Asked Questions (FAQ)

Q What are the main advantages of buried telescopic rod gate valves?

They can be installed underground directly without building deep brick valve chambers. This maintenance-free design eliminates the risk of road cave-ins and stolen manhole covers while significantly reducing initial civil engineering and subsequent road reconstruction costs.

Q How does the telescopic stem adapt to varying burial depths?

The valve extension rod features a freely adjustable telescopic design that can be customized and locked to match the exact depth from the ground surface to the pipeline, enabling easy top-side operation.

Q Can these valves be configured with monitoring or automation units?

Yes. The top of the valve stem can be fitted with open/close visual indicators, remote signal transmission modules for SCADA integration, and anti-tamper locking mechanisms to prevent accidental operation.

Q What fluids and media are suitable for this elastic seat gate valve?

Depending on the rubber lining material (such as NBR, EPDM, or Silicone), the valve handles cold water, hot water, sewage, industrial non-corrosive liquids, oil, and gas reliably within specified temperature thresholds.

Q What sizes and pressure classes are available?

Standard nominal diameters range from DN40 to DN500 with pressure ratings across 0.6, 1.0, 1.6, and 2.5 MPa. Custom dimensions, materials, and higher operating parameters can also be engineered upon request.

Q How does the elastic rubber seal guarantee leak-free operation?

The ductile iron valve plate is fully encapsulated in premium vulcanized rubber, ensuring smooth micro-elastic compression against the plastic-sprayed valve body for zero-leakage, bi-directional sealing.

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