| Availability: | |
|---|---|
| Quantity: | |
J-VALVES
Construction Features
A105N Normalized Forged Carbon Steel Material:The valve body is made of ASTM A105N forged steel. After normalizing heat treatment, the grain structure is refined and homogenized, improving low-temperature impact toughness by more than 30% compared with conventional A105. It satisfies service conditions from -29℃ to -46℃ and eliminates the risk of low-temperature brittle fracture.
Full Forged Structure:The valve body is integrally machined from forgings with dense grains and free of casting defects. Its pressure-bearing capacity and fatigue life are significantly superior to cast valves, making it especially suitable for 600LB medium-to-high pressure pulsating service.
Double Block & Bleed (DBB) Function:Equipped with two independent seats for bi-directional bubble-tight shut-off. A bleed/drain valve is provided in the valve body cavity, enabling online cavity pressure relief and seal integrity testing. It meets API 6D isolation requirements and prevents abnormal overpressure in the valve cavity.
Flanged or Butt-Weld End Connections:Adopts RF (Raised Face) flanges per ASME B16.5 or BW butt-weld ends per ASME B16.25. The connections feature high strength and reliable sealing under 600LB class pressure, adapting to various piping system requirements.
Fire-Safe Design:In compliance with API 607. In case of PTFE/RPTFE seal burnout, a secondary metal seal is formed between the metal ball and metal seat ring to prevent media leakage under fire conditions.
Anti-Static Device:Conductive springs are installed between the stem, ball and valve body to ensure continuous static dissipation, suitable for flammable and explosive media such as natural gas and crude oil.
Blowout-Proof Stem Design:The stem is designed with a bottom shoulder to prevent stem ejection under abnormal 600LB high-pressure conditions, ensuring personnel and equipment safety.
Emergency Seal Lubrication System:Lubrication injection valves are standard in the seat and stem areas. In emergency situations, sealant can be injected to restore temporary sealing and allow safe maintenance.
Compact and Lightweight:The 6-inch medium-to-high pressure design features moderate dimensions and controllable weight, facilitating installation and integration into skid-mounted equipment and station process modules.
Technical Parameters
Nominal Size: 6″ (DN150)
Pressure Class: 600LB (PN100)
Temperature Range: -29℃ to +425℃
Valve Body/Bonnet: ASTM A105N (normalized forged carbon steel); optional A350 LF2 (-46℃ low-temperature steel) or A182 F316 (stainless steel upgrade)
Ball: A105N + ENP (electroless nickel plating) / hard chrome plating / stainless steel hardfacing
Stem: A105N + ENP, 17-4PH precipitation hardening stainless steel or SUS420
Seat Seal:PTFE/RPTFE (-29℃ ~ 180℃).PPL (-29℃ ~ 280℃).PEEK (-60℃ ~ 260℃).Metal seal + flexible graphite (-29℃ ~ 425℃)
Packing: Flexible graphite reinforced with Inconel wire, or PTFE V-rings
Gasket: Flexible graphite stainless steel spiral wound gasket or metal ring gasket (octagonal / oval)
Bolting: ASTM A193 B7/B7M (alloy steel) or B8M (stainless steel) with A194 2H/2HM/8M nuts
End Connection: Flanged (RF, ASME B16.5); Butt-weld (BW, ASME B16.25, preferred per API 6D)
Operation: Manual (lever with locking device); optional worm gear box, pneumatic (single/double acting), electric, and pneumatic-hydraulic actuator
Design Standards: ASME B16.34, API 6D, API 608
Inspection & Testing Standards: API 598, API 6D
DBB Certification: Complies with API 6D Annex H and ISO 14313 DBB requirements
Face-to-Face Dimension: ASME B16.10
Applications
Oil & Gas Fields in Cold Regions:Wellheads, metering stations and gathering stations in northern and high-latitude oil and gas fields. A105N low-temperature toughness prevents brittle fracture in winter.
Natural Gas Processing, Storage & Transportation:Inlet and outlet valves for city gate stations, pressure regulating stations and gas storage caverns. DBB function supports online seal testing and valve cavity pressure relief.
Low-Temperature Chemical Processes:Low-temperature isolation above -29℃ in air separation units, low-temperature methanol washing, and CO₂ liquefaction systems.
Oil Storage & Transportation Facilities:Receiving, dispatching, tank switching and truck/ship loading/unloading valves for crude oil and refined product tank farms. DBB function ensures operational safety.
Coal Chemical and Ammonia Synthesis:Isolation and switching in medium-to-high pressure process pipelines. A105N strength meets syngas and hydrogen service conditions.
Advantages & Value
Guaranteed Low-Temperature Toughness:Normalized A105N with refined grain structure improves low-temperature impact energy at -29℃ by over 30% compared to A105. It eliminates brittle fracture in cold regions and intermittent low-temperature service, avoiding major safety incidents.
DBB Safety Assurance:Independent dual-seat sealing plus cavity bleeding enable online seal verification and safe pressure relief. It meets the strictest process isolation and safety specifications, preventing seal failure caused by abnormal cavity overpressure.
Balanced Economy and Reliability:A105N material costs significantly less than stainless steel, with an excellent balance of strength and toughness at 600LB class, making it a cost-effective solution for low-temperature applications.
Easy and Flexible Operation:Floating ball design is simple and smooth-running with moderate operating torque at 6-inch size via lever. Pneumatic/electric actuation can be easily upgraded for compatibility with SCADA and DCS systems.
I. API 6D Authoritative Standard Sets Quality Benchmark for Pipeline Ball ValvesAPI Specification 6D published by American Petroleum Institute is the globally recognized benchmark for pipeline valves, covering ball valves, gate valves and plug valves for oil & gas transmission systems. This standard
A Swing Check Valve is a mechanical valve designed to prevent reverse flow in industrial piping systems. Unlike manually operated valves, it works automatically according to the direction and pressure of the fluid, making it an important component for protecting pumps, compressors, pipelines, and other downstream equipment.
In industrial piping systems, solid particles, welding debris, rust, and other contaminants can negatively affect pumps, valves, heat exchangers, and instrumentation. A Y Type Strainer provides a practical solution by continuously filtering unwanted particles from the process medium before they reach sensitive downstream equipment.
Learn NACE MR0175 / ISO 15156 sour‑service requirements, ASTM B148 C95800 nickel‑aluminum bronze Y‑strainer material properties, material selection tips for offshore marine & oil‑gas harsh operating environments.
The Triple Offset Lug Butterfly Valve is an advanced quarter-turn valve designed for demanding industrial applications where reliable shut-off, low operating torque, and long service life are important. Compared with conventional concentric butterfly valves, the triple offset configuration changes the geometry between the shaft, disc, and sealing surfaces, significantly reducing friction during valve operation.
Choosing centerline flange butterfly valves for engineering projects is more than price comparison. Based on API 609, ISO 5208 & GB standards, this guide covers selection rules & quality verification to avoid seal failure and parameter mismatch for reliable fluid‑control procurement.
In industrial pipeline systems, filtration equipment plays an essential role in protecting pumps, valves, heat exchangers, and other critical components from solid particles and mechanical impurities. Among various filtration solutions, Y Strainer and Basket Strainer are two of the most widely used designs.
Follow ASME B16.34 guidance to evaluate high‑pressure angle globe valves for petrochemical refining. Learn working benefits, application limits, material selection & specification tips for severe‑service process units.
J‑VALVES 150LB CF8M swing check valves built to API 6D & ASME B16.5 standards. Prevent back‑flow for oil & gas pipelines, refineries, and process systems. Reliable flanged non‑return valve solutions.
In marine, offshore, power generation, and industrial fluid control systems, material selection plays a critical role in valve performance and service life. C95800 Nickel Aluminum Bronze Gate Valve has become a preferred solution for demanding applications due to its excellent corrosion resistance, high mechanical strength, and superior resistance to seawater erosion.
In industrial pipeline systems, a Y Type Strainer plays an important role in protecting pumps, valves, meters, and other equipment by removing solid particles from flowing media. Selecting the correct pressure class is essential to ensure safe operation, reliable filtration performance, and long service life.
DN100 PN160 CF8M gate valve manufactured per API 600 and ASME B16.34 standards. CF8M stainless steel construction delivers stable sealing performance for chemical, oil & gas high‑pressure pipeline applications.
Forged steel 3‑piece (3PC) threaded ball valves are widely used in oil, gas and high‑pressure fluid export projects. Global industrial projects adopt ASME B16.34 for valve body design and manufacturing, while API 598 governs finished‑valve pressure‑test acceptance. This article walks through the full workflow: forging incoming inspection, precision machining, assembly, hydro‑pneumatic testing and marking, explaining how these two leading standards deliver consistent structural strength, reliable sealing and worldwide spare‑part interchangeability.
The comparison of T Strainer vs Y Strainer is a common topic when engineers select pipeline filtration solutions. Although both strainers are designed to remove unwanted particles from fluids, they have different advantages in terms of flow capacity, pressure drop characteristics, and installation requirements.
Compared with conventional butterfly valves, the C95800 Triple Offset Butterfly Valve offers significant advantages in high-performance applications, especially where corrosion resistance, tight shut-off, and long-term operation are required.
ASME B16.34 compliant 26‑inch Class150 C95800 nickel‑aluminum bronze triple eccentric wafer butterfly valve. Excellent seawater corrosion resistance, metal‑to‑metal tight shut‑off for offshore platform and energy piping systems.
In industrial pipeline systems, valves play a critical role in controlling fluid flow, ensuring system safety, and maintaining stable operation. Among various industrial valve designs, the Plug Valve is widely recognized for its simple structure, excellent sealing capability, and reliable performance under demanding working conditions.
Many engineers confuse fully‑welded body and butt‑weld end connections for ball valves. Learn 3‑piece trunnion ball valve structure, pros cons and application tips to avoid project mistakes.
In industrial pipeline systems, protecting pumps, valves, meters, and other critical equipment from solid particles is essential for maintaining stable operation and reducing unexpected downtime. The Y Strainer has become one of the most commonly used filtration solutions due to its compact structure, easy installation, simple maintenance, and reliable protection performance.
DN100 PN15 UB6 pneumatic soft‑seated plug valve adopts PTFE sealing structure. Learn its sealing principle, field benefits for chemical, oil & gas pipelines, zero‑shut‑off performance and valve selection tips.