Fully Welded Ball Valves Suppliers and Manufacturers

Single flange fully welded ball valve applications : City gas : gas export pipeline , the main trunk and each branch supply pipes. Central heating : Large heating equipment output pipelines, trunk , branch . Heat exchangers : Pipeline and its opening and closing the loop . Steel plant : a variety of fluid pipes, exhaust pipes, gas and Heat supply pipelines, fuel supply pipe. A variety of industrial equipment: various heat treatment pipes , industrial gas and heating pipes. Single flange fully welded ball valve construction and design : Single flange welded ball valve is completely designed and manufactured in accordance with API6D , fire anti-static . Stem lengthened according to user requirements , body and other metal parts used in all spheres of high-quality forged materials to ensure the quality and strength of ball . Sphere with packing boxes or support plate fixation. Packing boxes or support plate fixed ball can eliminate bending media sphere force acting on the valve stem to produce , so the stem is exposed only torque. And in the sphere of fixed low-friction Teflon around Le composite bearings. Smooth operation of the valve , a small switch torque , easy to operate. Seal is a unique two soft seal and metal seal form triple sealing . Ensure reliable sealing, safe to use. Long-life , maintenance-free .

API Fully Welded Body Ball Valve Product design and scope Design standard:API 6D Length of structure:API 6D. For product beyond the scope of the standard, it shall be manufactured by specifications in BTL standard or user's requirements. Flange connecting end:ASME B16.5/ASME B16.47 Butt welding connecting end:ASME B16.25/ ASME B31.8 Wall thickness:ASME B16.34 Fireproof test:API 607/API 6FA Inspection and test:API 6D Pressure and temperature rating:ASME B16.34 Product scope:NPS 4NPS 60 CL150~CL1500 Main body material:A105,LF2,F304,F316,F304L,F316L,F51etc. Valve seat material:PTFE,RPTFE,NYLON,DEVLON,Derlin,PEEK,PPL,HNBR,FKM or metal hard seal etc. Drive device:handle, worm wheel, electric, pneumatic, pneumatic- hydraulic, electro-hydraulic, etc. -

API Fully Welded Body Ball Valve Product design and scope Design standard:API 6D Length of structure:API 6D. For product beyond the scope of the standard, it shall be manufactured by specifications in BTL standard or user's requirements. Flange connecting end:ASME B16.5/ASME B16.47 Butt welding connecting end:ASME B16.25/ ASME B31.8 Wall thickness:ASME B16.34 Fireproof test:API 607/API 6FA Inspection and test:API 6D Pressure and temperature rating:ASME B16.34 Product scope:NPS 4â?³~NPS 60â?³,CL150~CL1500 Main body material:A105,LF2,F304,F316,F304L,F316L,F51etc. Valve seat material:PTFE,RPTFE,NYLON,DEVLON,Derlin,PEEK,PPL,HNBR,FKM or metal hard seal etc. Drive device:handle, worm wheel, electric, pneumatic, pneumatic- hydraulic, electro-hydraulic, etc. -

Trunnion mounted designs for forged steel trunnion mounted ball valve is available for over 2" size and are generally used for higher pressure. Three pieces body, blow-out proof stem, antistatic device, fire-safe designed and certified, double block and bleed, self relieving. Execution could be full bore or reduced bore, and materials can be carbon steel, stainless steel, special alloys resilient or metal seated These have the ball mounted on trunnions supported in body bearings above and below the ball. sealing is achieved by spring loaded piston type seats which shut off flow when line pressure acts on the upstream seat. This design provides automatic rilief of cavity overpressure. Features: 1: Three Pieces Forged Steel Body; 2: Trunnion Mounted Ball type; 3: Full & Reduced Bore types; 4: Anti-Static device design; 5: Blow-out proof stem design; 6: Double Block and Bleed, DBB design; 7: Fire Safe Design 8: With vent valve & drain valve; 9: Lifting lugs & supporting feet for 8" & Larger sizes. Plywood case.

1500LB high pressure top entry ball valve has a top entry structure which has advantages as below of small fluid resistance, simple structure, small volume, light weight, convenience for operation and maintenance, open and close quickly as well as start and close flexibly & reliable sealing. This type valve has the below features: 1: Top entry structure Its most difference from common ball valve is that its maintenance can be made on pipe line and without dismounting from the pipe line.The back space seat structure is adopted for the seat and the rear portion of seat retainer is oblique angle to prevent accumulation of impurity from affecting back space of seat. 2:One piece body One piece body is to guarantee sufficient strength and rigidity under maximum rated operating pressure. The internal parts of valve are carefully designed and selected to ensure reliability under all kinds of operating condition. Enough margin wall thckness and adaptation of high strength connective bolts are convenient for valve maitenance and sufficiency to support the stress from piping. 3: Emergency sealing Compound injection holes are designed and compound injection valves are installed at locations of stem cap and body support of side valve.When sealing of stem or seat is damaged to induce leakage, the compound can be used to do the second time sealing. A concealed check valve is installed in side of each compound injection valve to prevent compound from out flowing due to the action of transmitter substance.The top of the compound injection valve is the connector for fast connection with compound injection gun. 4: Low operation torque Top entry ball valve has a trunnion mounted ball, whose surface is ground, polished and hard face treated.The ball and stem is integrated, sliding bearing is installed on the external bore so that the friction radius is small and operation torque is very low. 5: Double block & bleed(DBB) design When ball is full open or close position,the transmitter substance in center cavity of body can be released by drainage and emptying devices.In addition,the over loaded pressure in the center cavity of valve can be released to low pressure end by self relief seat. 6: Reliable sealing design The seat sealing is formed by seat sealing and metal retainer component.The seat retainer floats axially and low pressure sealing of valve seat is reached by pre-pressure of spring.In addition, the piston effect of valve seat is designed reasonably,which realized high pressure sealing by the pressure of operating medium and realize the interception of retainer to form the sealing of the body.The expansion graphite ring is designed to realize sealing under fire condition. 7: Extension stem design For the underground installed top entry ball valve, the stem can be lengthened and for the convenience of operation the corresponding compound injection nozzle and drainage valve can be extended to the top of valve. 8: Anti-static and fire safe design The fire prevention design of valve meets the requirement in API6FA/API607 standard and the design of the anti-static conforms to regulations in API6D and BS5351. Plywood case.

Trunnion mounted ball valve, fully welded ball valve, forged steel ball valves.Manufacturer

Free-valve's butt welding butterfly valves are suitable for high temperature , high pressure , corrosion etc. Its are quarter-turn valves which are used for isolating or regulating flow .They are favoured for being lighter in weight, requiring less support and are suitable for water and gas, which makes them useful across industrial, mining and power applications. Features: 1. Reliable sealing, convenient operation, opening and closing fast. 2. This kind of valve with no flange, which makes pipe elegantly and binding up conveniently. 3. It adopt triple offset elasticity or multiple layers hard sealing configuration, the hermetical capability can reach to reliable sealing performance. Technical specification: 1) size range: nps6~nps42;dn150~dn1050 2) pressure range: class 150~class300;pn10~pn40 3)body materialcarbon steel, stainless steel & other materials 4) sealing material: sta inle ss steel, hard alloy& other materials 5) connection ty pe:butt weld 6)pressure test:gb/t13927; api598 7)structure length: gb/t12221;api609; 8) jointing dimension: gb/t12224; ansi b16.25 9) operating method:worm gear, electric, pneumatic . Application: Free-valves triple offset butterfly valve is applied to use in heating system, chemical, petroleum, natural gas, refining, energy, food and the role of regulating valve

FREE- Valve's Ceramic Ball Valves are designed with engineering ceramics the engineering ceramics internal parts provide excellent wear resistance, the ceramic ball valves are widely used as an open & close function as well as a throttling control tasks in corrosive medium with abrasive solids content. Features: 1.The hardness of the ceramic material can be higher than HRC80. 2.Engineering internal parts of ceramic ball valve provide superior protection from corrosive and abrasive medium. 3.Customized actuation types are installed on the ceramic ball valve, the manual lever or gear box, as well as with pneumatic, electric and hydraulic actuators 4.Customized V type ceramic control valve is also available for us. 5.The valve has a floating ball design, the ball is floating, the ball has a defined clearance and is pressed against the downstream seat under the differential pressure to achieve sealing. Technical Specification The standards of flange endsASME B16.5,GB/T9113 Nominal Pressure1. 0MPa,Class150 Size RangeDN50~DN 200, NPS2 ~NPS8 Connection typeFlange Working Temperature200 degree C Operating TypeManual, Pneumatic and Electric Sealing surface materialEngineering ceramic Pressure testGB/T13927, API598 Face to FaceGB/T12221, API609 Application FREE- Valve's Ceramic Ball Valves are suitable for Silicon Powder, Alumina Powder, Dry Coal Powder, Limestone Slurry, Gypsum Slurry, Plaster, Fly Ash, Mining Ore, Coal Powder Injection, Metallurgical dust, Thermal Power plant FGD , LiCoO2 powder equipment

Ball valves, such as forged steel trunnion ball valves, forged steel floating ball valves, fully welded ball valves, NPT ends ball valves.

Fully welded ball valve, forged steel valve (gate valve, globe valve, ball valve and check valve).

Fully welded ball valves, flanged ball valves, flow control ball valves.