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Emergency Shut-Off Valve
Description
Emergency Shut-off Valve is installed on fuel supply lines beneath at grade level to minimize hazards associated with collision or fire at the dispenser. If the dispenser is pulled over or dislodged by collision, the top of the valve breaks off the flow of fuel. Single-poppet models shut off supply flow, while double-poppet models shut off supply as well as prevent release of fuel from the dispenser's internal piping.
The base of the Emergency Valve is securely anchored to the concrete dispenser island through a stabilizer bar system within a U-Bolt Assembly. Valve inlet (bottom) connection are female pipe threads and outlet (top) connections are available with female threads, male threads, or a union fitting. Other options include suction system models with a normally closed secondary poppet which maintain prime, and models with external threads on inlet body which connect to secondary containment system.
Technical Specification
Material Body |
Cast Iron |
Working pressure |
0.2Mpa |
Valve closing speed |
0.5S |
Working temperature |
-30℃~ 55℃ |
Flow range |
0~120L/Min |
Valve type |
Single poppet and Double poppets |
Inlet-Outlet |
BSPF/NPT 1.5" |
Net Weight |
25 KG |
Gross Wet |
26 KG |
Package |
10PCS/CTN |
Dimension |
41X33X23cm |
Feature
1) High Flow Capacity – The primary poppet is held out of the flow stream while the secondary poppet is held normally open to minimize head loss across the valve and to protect the poppet seals from damage and erosion.
2) Fire Protection – A fusible link trips the valve closed at 165° F to shut off fuel supply to the dispenser.
3) Main Poppet Seat Integral to the Top Assembly – Having the main poppet seat as an integral part of the valve top assures a new, clean seating surface is installed each time the top is replaced. This design also ensures that the integrity of the seal between the valve top and bottom is verified during line testing and allows full inspection of the main poppet when the top is removed.
4) Emergency Shut-Off Valve - Female 1 1/2 in. NPT - Single Poppet is superior corrosion resistance.
5) Reliable Shut-off – A stainless steel main spring, a Teflon-coated brass packing nut, and a copper/ nickel/ chrome-plated brass stem are designed to prevent tar build-up and corrosion from interfering with poppet operation after long periods of normal service without activation.
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