- Gate valve
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- DIN f4 di flange resilient epdm gate valveDN450-1200 Resilient Seated Gate ValveDIN F5 Non-rising stem Resilient gate valveDIN F5 Socket connection soft seal gate valveUnderground cap soft seal gate valveBS5163 Rising stem Resilient soft seal gate valveBrass Threaded Gate ValveHard seal gate valveAPI Slab Gate ValveStainless Steel Gate ValveStainless Steel Knife Gate ValvePneumatic gate valve Control valveSoft Seal Gate ValveExtension stem gate valveNon rising stem Groove Soft Sealing Gate ValveRising stem Forged steel gate valveAPI carbon steel gate valveThreaded Gate ValveDin rising Stem And Non-Rising Stem Gate ValveUL-FM Rising stem flanged fire fighting system gate valveANSI Cast Iron Gate ValveBritish Standard Soft-Sealing Gate Valve
- Butterfly valve
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- DN2000 Double Eccentric Butterfly ValveFlange butterfly valveLug butterfly valveWafer Butterfly Valve With HandleWorm Gear Operated Wafer Butterfly ValveWafer lined fluorine butterfly valvestainless steel wafer butterfly valveStainless Steel Flanged Butterfly ValveEccentric soft sealing flange butterfly valveElectric three-eccentric metal hard seal butterfly valvePneumatic Flanged Butterfly ValvePneumatic Wafer Butterfly ValveThree eccentric metal seals wafer butterfly valveULC butterfly valve reportInflatable Butterfly ValveHigh Performance Butterfly ValveGrooved butterfly valvesElectric soft sealing wafer butterfly valveDouble flange fluorine lined butterfly valveHandle Aluminum Butterfly ValveWorm Gear Aluminum Butterfly ValveFull PTFE lined wafer butterfly valveOne stem no-pin wafer butterfly valveMulti standard Aluminum handle wafer butterfly valveMulti standard soft seat aluminum lever coated discwafer type butterfly valveResilient Seated Butterfly ValveMulti standard soft seat wafer type butterfly valveWafer PTFE seat butterfly valveWorm Gear Operated Lug Butterfly ValveStainless Steel wafer Butterfly ValvePneumatic Wafer Butterfly ValveWafer Type Metal Seat Butterfly ValveLug type manual wafer butterfly valve without pinAluminium Handle Lug Butterfly ValveWorm Gear Operated Flange Butterfly ValveLever Operated Flange Butterfly ValveButterfly valve stemButterfly valve discButterfly valve seat
- Ball valve
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- High platform flange ball valveCast Iron Ball ValveSS Thread Ball ValvesThree Piece Type Ball ValveAPI Ball ValveStainless Steel 3PC Ball ValvePTFE Seat Flanged Ball ValveForge Steel Fully Welded Ball ValveMetal Seat Ball Valvesfixed ball valveFlange connection ball valve3PC Type Ball Valve With Internal Thread Q11F/H-1000WOGThree Way Ball ValveANSI API Cast Steel And Stainless Steel Flange Ball valveTwo-PCS Type Thread Ball Valve
- Globe Valve
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- API Carbon Steel Globe ValveBellows Globe ValveStainless steel flange globe valveStainless steel thread S type globe valveStainless steel thread B type globe valveCast Steel Globe ValvePiston Globe ValveWCB Carbon Steel Globe Check Valveelectric motorized control stainless steel SS316 globe valveBrass Globe ValveCryogenic Globe valveHT200 Globe ValveThreaded Stainless Steel Globe ValveGG25 Globe ValveANSI API Cast Steel And Stainless Steel Globe valve
- Check valve
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- DN800 Slow Closing Check ValveDN800 Rubber Disc Check ValveButterfly Buffering Check Valvecheck valve with counter weightSilent Check ValveStainless Steel flange Check ValveSwing Check ValveSingle Chip Check Valve H74WStainless Steel Wafer Check ValveSwing Start Check ValveFoot check valveAPI Swing Check ValveWCB Swing Check ValveCheck ValveLifting Check ValveBottom ValveHammer Diminish Noises Check ValveWafer Check ValveDuctile Iron Check Valve
- Water Meter
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- Vertical Type Water MetersStainless steel threaded water meterPiston water meterPlastic water meterMore flow rotor dry water meterspiral vane flange water meterCI wotlman water meter with pulse outputLXCLG(R) Vertical removable element woltman cold (hot) water meterSingle flow rotor dry water meterPrepaid Token Water MeterElectromagnetic flowmeterRotary Piston Liquid Sealed Water MeterRotary Piston Liquid Sealed Water Meter
- Air valve
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- Double ball exhaust valveDoubleair Air Valve SaudiDoubleair Air Valve Southeast AsiaDoubleair Air Valve South AmericaDouble Air ValveThreaded Air ValveSingle Air ValveTriple Functions Air ValveAutomatic Air Release ValveAutomatic release valveAutomatic exhaust valveComposite Exhaust Air ValveBrass exhaust valveDouble Ball Air Valve
- Pipe Repair & Coupling
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- Flexible Multi-Function Pipe Coupling ZFJ-SSS Semi-Circle Pipe Repair Clamp SJW-HDuctile Iron Band Repair ClampStainless Steel Band Repair ClampDouble-Section Pipe Repair CouplingFolding Type Pipe RepairSingle-Section Multi-Function Pipe Coupling MF-SGear-Ring Type Multi-Function Pipe Coupling GR-SZBW Damping Corrugated Hose
- Dismantling Joint
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- VSSJAFC(CC2F) Detachable Flange Transmission JointVSSJA-2(B2F) Double Flange Limited Expansion JointVSSJA-1(BF) Single Flange Limited Expansion JointVSSJA(AF) Flange Loose Expansion JointJGD-B Threaded Rubber JointZBW Damping Corrugated HoseKXT-S Flexible Dual-Spherical Rubber JointKXT Rubber Soft JointFlange Adaptor
Structural Features Of Bellow Seal Globe Valve
Structural features of bellows globe valve
The intercepting steam globe valve (also known as the "bellows globe valve") is designed with double-layer bellows, which are welded to the stem to maintain stable operating performance and avoid stem vibration due to valve plug vibration.
In the case of high temperature, the stem is not in contact with the medium, ensuring zero leakage of the stem. At the same time to ensure sufficient strength and toughness can be opened and closed tens of thousands of times. The handwheel is ergonomically designed for longer service life and easy and convenient operation. The opening and closing parts of the steam globe valve are plug-shaped valve flaps with a flat or tapered sealing surface, and the flaps move in a straight line along the centerline of the fluid, also called a shut-off door, which is the most widely used kind of valve, and it is popular because of the small friction between the sealing surface during opening and closing, more durable, small opening height, easy manufacturing, convenient maintenance, not only for low and medium pressure but also for high pressure. Widely used in food, medicine, petroleum, chemical, natural gas, steel, environmental protection, paper, and other transport pipelines to do media cut-off or circulation.
Features of bellows disconnecting valve.
1. Double sealing design (bellows + packing) If the bellows fail, the stem packing will also be avoided.
2. The product has a reasonable structure, reliable sealing, excellent performance, and a beautiful shape.
3. No fluid loss, reduce energy loss and improve the safety of plant equipment.
4、Overlaying cobalt-based hard alloy, covering layer is dense, wear-resistant, corrosion-resistant, good wear resistance, long service life, less maintenance, and low operating cost.
5、Sturdy and durable bellows seal design ensures zero stem leakage and provides maintenance-free conditions.
6、Stem tempering and surface nitriding treatment, with good anti-corrosion and anti-friction properties.
7、More intuitive indication of stem lift position.
8, double sealing, more reliable performance, zero leakage.
9, parts material, flange, and butt welding number size according to the actual working conditions or user requirements reasonable optional, to meet a variety of engineering needs.
To meet the needs of various projects.
Bellows disconnecting valve principle of operation.
Relying on the steam pressure, the valve sealing surface and seat sealing surface closely fit, to stop the flow of media.
Bellows disconnecting valve selection note: 1.
1, the globe valve is suitable for a small diameter pipeline to adjust the flow, pressure and accuracy requirements are not high or often closed to cut off the flow of one-way flow on the pipe section.
2, due to the large resistance of the shut-off valve, relatively suitable for the flow resistance requirements of the less stringent pipeline.
3, not suitable for viscosity or particles containing easy-to-precipitate media.
Construction, and installation points.
1, installation location, height, import, and export direction must meet the design requirements, the connection should be solid and tight.
2, installed in the insulation pipeline on all types of manual valves, the handle shall not be down.
3, steam shut-off valve must be installed before the appearance check, for working pressure greater than 1.0 MPa and in the main pipe to cut off the role of the valve, should be installed before the strength and tightness of the performance test, after passing before use. Strength test pressure for the nominal pressure of 1.5 times the duration of not less than 5min, the valve shell, packing should be no leakage for qualified. The tightness test pressure of 1.1 times the nominal pressure.
4, handwheel, handle and transmission mechanism, are not allowed for lifting.
5, the flow direction of the medium should be consistent with the direction of the arrow shown on the valve body.
Application areas:
Petroleum, petrochemical, chemical, metallurgy, electric power, water conservancy, urban construction, machinery, coal, food, industrial (main steam trapping, boiler drainage, blast furnace system, hot air furnace system, thermal system, steam system, etc.)
Complete solutions for Industrial valves
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