Normally closed aluminum alloy gas emergency shut-off valve SHFBL

NegotiableUpdate on 04/02

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Working principle: Piston type gas emergency shut-off valve normally closed type - This product is generally used in conjunction with gas leak alarms. When gas leaks or needs to be urgently shut down, the host sends a pulse power signal to the solenoid valve. The solenoid valve cuts off the gas supply within 1 second, effectively preventing accidents. After eliminating the danger, the protective cover is manually unscrewed and the handle ball is lifted up to open the valve! Piston type gas emergency shut-off valve normally closed - in the working state, the solenoid valve is in the open state, and the coil is also in the live state. When gas leakage or power outage occurs, the solenoid valve will instantly cut off the gas source; When turning on, first lift the handle ball to position, and then turn on the power. The disadvantage is that the solenoid valve cannot be opened during a power outage. Detailed parameters: Principle structure direct acting, step-by-step direct acting

Product Details

Working principle:Piston type gas emergency shut-off valveNormally closed type—This product is generally used in conjunction with gas leak alarms. In the event of a gas leak or emergency shutdown, the host sends a pulse power signal to the solenoid valve, which cuts off the gas supply within 1 second, effectively preventing accidents. After eliminating the danger, the protective cover is manually unscrewed and the handle ball is lifted up to open the valve!

Piston type gas emergency shut-off valve normally closed - in the working state, the solenoid valve is in the open state, and the coil is also in the live state. When gas leakage or power outage occurs, the solenoid valve will instantly cut off the gas source; When turning on, first lift the handle ball to position, and then turn on the power. The disadvantage is that the solenoid valve cannot be opened during a power outage.
Detailed parameters:

principle structure	Direct acting, step-by-step direct acting (suitable for medium and high voltage)	Fluid	Air, nitrogen, natural gas, liquefied petroleum gas, gas, biogas, coal gas, etc
Coil operating temperature	<+85℃	medium temperature	-40℃——+120℃
control mode	Normally open (powered off, manually open); Normally closed (power off to close, manually powered on to open)	nominal pressure	PN16………… (Using 0-0.2MPa)
Nominal Diameter	DN15-DN500mm	body material	Stainless steel (304, 316), cast steel, cast iron (HT200)
Standard voltage	Pulse AC220V, DC24V, DC12V	Coil connection method	Explosion proof cover, three core sheathed cable, lead type, plug type
Sealing performance	Temperature resistance, pressure resistance, wear resistance, and corrosion resistance	Connection method	Flanges, threads, welding
Sealing method	Flat and cone plane sealing	electric current	0.15A

External dimensions:

Nominal Diameter （mm）	Connection method (Imperial)	Connection size (National Standard)	Length - L （mm）	Height - H （mm）	material （1Cr19Ni9）
DN20	flange	4-φ14； Hole spacing 75	150	145	304/HT250
DN25	flange	4-φ14； Hole spacing 85	160	189	304/HT250
DN32	flange	4-φ18； Hole spacing 100	180	210	304/HT250
DN40	flange	4-φ18； Hole spacing 110	200	230	304/HT250
DN50	flange	4-φ18； Hole spacing 125	165	350	304/HT250
DN65	flange	4-φ18； Hole spacing 145	290	380	304/HT250
DN80	flange	8-φ18； Hole spacing 160	250	410	304/HT250
DN100	flange	8-φ18； Hole spacing 180	280	450	304/HT250
DN125	flange	8-φ18； Hole spacing 210	400	455	304/HT250
DN150	flange	8-φ23； Hole spacing 240	480	575	304/HT250
DN200	flange	12-φ23； Hole spacing 295	600	675	304/HT250
DN250	flange	12-φ25； Hole spacing 355	730	645	304/HT250
DN300	flange	12-φ25； Hole spacing 410	850	705	304/HT250
DN350	flange	16-φ25； Hole spacing 470	900	845	304/HT250
DN400	flange	16-φ30； Hole spacing 525	950	845	304/HT250
DN500	flange	20-φ34； Hole spacing 650	1150	1015	304/HT250

closing timeWithin 1 second
Performance characteristics:High sensitivity, strong dynamic sealing, high safety, and long service life.
ConnectionThe yellow line is the ground wire (optional), and the other two are not divided into positive and negative poles.
Scope of work:Combustible gas alarm self-control system and pipelines that require emergency shutdown.
Annotation:1Piston type gas emergency shut-off valveBefore installation, impurities and welding slag inside the pipeline must be cleaned to prevent leakage inside the valve body.
2Piston type gas emergency shut-off valveUnder normal working conditions, it can only be installed horizontally. When installing vertically, it needs to be explained in advance.
3Piston type gas emergency shut-off valveAfter installation, it should be operated several times before it can be put into use.
Explosion proof coil description: Explosion proof solenoid valves are solenoid valves that operate in relatively special environments, and users must choose solenoid valves according to national explosion-proof standards. To ensure the safety of life and property. The explosion-proof solenoid valve produced has passed the inspection of the National Explosion proof Electrical Product Quality Supervision and Inspection Center and obtained the explosion-proof solenoid valve product qualification certificate.
Explosion proof grade:EXd Ⅱ CT4. Explosion proof certificate number:CNEX12.0353
Manufacturing standards:GB3836.1-2000、GB3836.2-2000