Signal Butterfly Valve (DN80 PN16) — Reports Its Own Position to Your Panel
The most dangerous valve is the one you can't see. When the control room thinks the main is open and it is closed, the fire meets a shut valve. Walking the line to check takes an hour, and nobody does it.
This valve reports its own position. A waterproof microswitch flips the open or closed status to your panel the moment the handwheel moves, so the operator 500 meters away never walks down the line to check. One quarter turn of the worm gear handwheel, low torque, bi-directional EPDM or NBR sealing.
QT450 wafer body, compact enough for tight riser spaces, DN50 to DN300 at PN16, 100% shell and seat pressure tested per GB/T 13927 or EN 12266-1. For fire mains, water supply, and industrial lines where position matters.
Key Features
- Integrated electrical signal switch for remote status monitoring
- Compact wafer body design for space-saving installation
- Worm gear operator offers smooth, low-torque operation
- Durable resilient sealing disk for bi-directional sealing
Technical Specifications
- Size Range
- DN50 - DN300 (2" to 12")
- Working Pressure
- 1.6 MPa (PN16)
- Body Material
- Ductile Iron (QT450)
- Disk Seal
- EPDM / NBR
- End Connection
- Wafer / Grooved
Parts & Materials List
- Body
- Ductile Iron (QT450)
- Disc
- Ductile Iron with Epoxy/EPDM Coating
- Shaft/Stem
- Stainless Steel (2Cr13 / 416)
- Gear Operator
- Cast Iron / Spheroidal Iron
- Microswitch
- Highly Conductive Waterproof Microswitch
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 standards and connection types are available for Wanlian valves?
What materials are used for the valve body and sealing?
What is the MOQ and lead time?
How are the valves tested before shipment?
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