Pressure Class: 150LB to 2500LB (PN20 to PN420).
Temperature Range: -46℃ to +180℃.(specific range depends on sealing materials and working conditions)
Materials:
Valve Body: Carbon steel (A105), alloy steel
Ball: Stainless steel.
Stem: Stainless steel.
Sealing Material: PTFE, RPTFE, metal seal.
Connection Type: Flange connection (ASME B16.5/ASME B16.47), butt-weld connection (ASME B16.25)
Design Standards: API 6D
Testing Standards: API 598
Applicable Media: Oil, natural gas, water, steam, chemical media.
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J-VALVES
Buried Fully Welded Ball Valve
Features
1 piece body
Full and reduced bore
Trunnion mounted
Double blockand bleed
Single or double piston effect design anti-blow outstem
Anti-static device
Firesafe to AP1-607/6FA/1S0 10497 springloaded seats
Sealant in jection
NACE MR-01-75
Stem
The stem is independent from the ballandis not subject to theside load generated by the line pressure acting on the ball.
Two O-Rings and agraphite gasket grant a triple barrierand thefire safe sealing on the stem.
Abuilt instemsealant injectionsystemis provided as a standardfeature.
The standard antiblow-outfeature ofthe stem is inaccordancetoAPl6Dand is eranted bythebodycover.Byremovingthe glandbushing theupperstemgasket can bereplaced formaintenancewith thevalve in service.
Ball
Inside entry valves 4" and smaller the ball is keptin position byan upper and alower trunnion,housedin the primary body.
Inside entry valves 6" and larger the ballis kept in position by anupperand alowertrunnion housed in two bearing blocks.
Both the trunnions absorb the side load generated by the linepressureacting on the ball,without affecting therotationofthestem.
Largediametertrunnionsminimize the torque required to operatethe valve.
The trunnionsrotateinto metalbacked self-lubricating bearings.
Extended Stem
Extended stem is supplied for
Underground installation.
The stem seals are located in the body Gland Plate.
The stem extension isnot affected by eventual stem seal failure.
Low Emlsslon Stem Sealing
J-VALVES SPA Standard stem sealing arrangement offers Low Emission usingatiple barrier arrangement certified to thelatest ISO 15848 standard.
Antl-Blowout Proof Stem
Stem is retained by the cover, thegland plate can beremoved with vave infuly closed postion with the body cavity vented to atmosphere.The upper stem O-ring can be replaced for maintenance with valve in service.
Anti-Static Device
J-VALVES SPA Trunnion Mounted Ball Valves,are equipped with an anti-static device to assure the to talelectrical conductance between all metal parts ofthe valves.
Fire Safe
J-VALVES complete range of Side entry,Top Entry and Welded body ball valves are certified fire safeaccording to AP1 607/1SO 10497-API 6FA.
3D Drawing
Advantages and Value
High Reliability: The fully welded structure and high-quality materials ensure stable operation of the valve under high-pressure and high-temperature environments.
High Safety: Fire-safe and anti-static designs, along with reliable sealing performance, effectively reduce leakage risks.
Easy Installation and Maintenance: The buried design simplifies the installation process and facilitates maintenance and repair.
Wide Applicability: Multiple material options and a broad range of pressure and temperature ranges enable it to adapt to various complex working conditions and medium characteristics.
Body,Ball,Seats& Stem Materials
Carbon Steel &Low Temperature Carbon Steel (Forged)
A105N, AISI 4140, AISI 4130, API 60K, API 65K, A350 LF2, A350 LF3.
A350 LF6, A694 F52
A694F60, A694F65
Carbon Steel & Low Temperature Carbon Steel (Cast)
A216 WCB.A352 LCB.A352 LCC
Martensitic Stainless Steel(Forged)
A182F6A.A182F6NM
Austenitic Stainless Steel (Forged)
A182F304,A182F316,A182F316L.A316LN-Mod A182F321.
A182F347.XM19(Nitronic 50)
PrecipitationHardeningStainless Steel (Forged)
17.4PH(A705S17400)
Austenitic Stainless Steel (Cast)
A351CF8.A351CF8M.A351CF3M
SuperAustenitic Stainless Steel (Forged)
A182F44(6MO)
SuperausteniticStainlessSteel(Cast)
A351CK3MCUN
Duplex& Super Duplex (Forged)
A182 F51(S32205)A182 F53(S32750),A182F55(S32760)
Duplex&SuperDuplex(Cast)
A890-J92205,A8905A(A351CD4MCU)
Nickel Alloy (Forged)
Incoloy 800(B564-N0880), Incoloy 825(B564-N08825).
Inconel 600(B564-N06600), Inconel 625(B564-N006625)
Nickel Alloy(Cast)
Incoloy825(A494-CU5MCUC).Inconel600 (A94-CY40).
Inconel625(A694-CW6MC)
Nickel-Copper Alloys(Forged)
Monel 400(B56-N04400), Monel 500(B564-N05500)
Nickel-Copper Alloys(Cast)
Monel400(A94-M35-1)
High Alloys (Forged)
HastelloyC(B564-N10276)
Bolts& Nuts Materials
CarbonSteel & LowTemperature Carbon Steel
ASTM A193 GR B7-A194 GR2H
A193 GR B7M-A194 GR 2HM(NACE)
ASTMA193 GRL7-A194 GR4,A193 GRL7-A194.GR7
ASTMA193 GRL7M-A194GR4M,A193 GRL7M-A194
GR 7M (NACE)
Austenitic Stainless Steel
ASTMA320GR BB-A194 GR8
ASTMA320 GR B8M-A194 GR 8M
Duplex Stainless Steel
ASTM A453 GR 660
Corrosion inhibitors usually come in liquid form and can be mixed with cement. When using corrosion inhibitors, you need to add them at the specified dosage and strictly follow the relevant usage guidelines and safe operating procedures.
The main functions of corrosion inhibitors
Delay the setting time
Corrosion inhibitors can delay the setting time of cement, allowing it to have a longer working time in concrete construction. This is useful for large projects or where a long construction period is required.
Adjust the setting speed
Corrosion inhibitors can adjust the setting speed of cement to give it more stable performance under different temperature and humidity conditions. This helps improve the quality and strength of the concrete.
Increased fluidity
Corrosion inhibitors can improve the fluidity of cement slurries, making them easier to construct and pour. They reduce the viscosity of cement pastes and improve their fluidity and pumpability.
Control Shrinkage and Cracks
Corrosion inhibitors can reduce the shrinkage and occurrence of cracks in cement. They improve the volumetric stability of cement and reduce stress concentrations and damage in concrete structures.
