4inch 300lb Carbon Steel WCB Flange Swing Check Valve

Structure and Principle of Fully Welded Ball ValvesThe valve body is welded from steel pipes into an integral sealed structure. The ball is connected to the driving device through the valve stem, and the opening and closing can be realized by rotating the ball. When opened, the through hole of the b

一、Understanding BS 5351 and ANSI B16.34 Standards(一) BS 5351 StandardBS 5351 is a specification for steel ball valves in the petroleum and petrochemical industry, formulated by the British Standards Institution (BSI). It applies to ball valves with pressure classes ranging from Class 150 to 2500LB.

I. Product IntroductionThe J-VALVES 8" 300LB WCB floating ball valve is a high-quality industrial valve, and its design and manufacturing both comply with the GB/T 12237 standard. This standard puts forward strict requirements on the structure, dimensions, performance and other aspects of the ball v

I. Product OverviewThe J-VALVES top-entry ball valves are meticulously crafted from high-quality materials. They feature a compact structure, are convenient to operate, and possess excellent sealing performance. With their unique top-entry design, they are easy to maintain and repair, and are widely

Understanding Bellows Globe ValvesBellows globe valves are designed to provide reliable sealing and precise flow control. They consist of a bellows assembly that provides a leak-tight seal and a globe valve mechanism that controls the flow of fluid. The bellows design eliminates the need for gland p

I. Design Principle of Triple-Eccentric Butterfly ValveThe triple-eccentric butterfly valve has achieved a technological breakthrough in the field of sealing performance. Its core mechanism relies on the design of three innovative eccentric structures.First Eccentricity: By offsetting the centerline

In the professional field of industrial valves, J-VALVES gate valves have already become the preferred choice for numerous engineers and purchasers due to their excellent performance and wide range of applications. When it comes to J-VALVES gate valves, two crucial international standards, namely AS

Overview of API 609 and ASME B16.34 Standards API 609 StandardDeveloped by the American Petroleum Institute (API), API 609 specifies the design, manufacturing, and testing requirements for butterfly valves. This standard covers various types of butterfly valves, including double-flanged, wafer-type,

Understanding Floating Flanged Ball ValvesFloating flanged ball valves, a staple in the realm of quarter-turn valves, employ a spherical ball mechanism to regulate fluid flow. What sets them apart is the unique floating design of the ball, which is supported by the valve seats. Under pressure, this

In industrial fields such as petroleum, natural gas, chemical engineering, and petrochemicals, the fire safety design of industrial valves is of vital importance. Once extreme situations like fires occur, whether the valves can maintain their sealing performance and normal operating functions under

In numerous industrial fields, valves, as crucial fluid control equipment, have their performance and quality directly related to the stable operation and safety of the system. J-VALVES American Standard Duplex Steel Flange Ball Valves, with their outstanding performance and wide applicability, have

Understanding Double Block-and-Bleed (DBB) Ball ValvesDBB ball valves are designed to provide two independent seals (one upstream and one downstream) and a bleed port to vent any trapped fluid between the seals. This design ensures that the valve can safely isolate a section of the pipeline and r

I. Key Points of ASME B16.34 P-T RatingsClassification of Pressure RatingsThe ASME B16.34 standard divides the pressure ratings of valves into multiple levels, including Class 150, 300, 600, 900, 1500, 2500, etc. Each pressure rating corresponds to a different maximum allowable working pressure (MAW

In various industrial and civil pipeline systems, ball valves can be seen everywhere. With many advantages such as simple operation and excellent sealing performance, they play a vital role in numerous fields like petroleum, chemical engineering, gas, water supply and drainage. However, there are a

Overview of the Standards1. API 6D: Pipeline and Pipeline ValvesAPI 6D is a standard developed by the American Petroleum Institute (API) specifically for pipeline valves used in petroleum and natural gas systems. It focuses on gate, ball, check, and plug valves and is designed to address the unique

In the realm of industrial fluid control, gate valves play a pivotal role in ensuring the efficient and safe regulation of fluid flow. When it comes to selecting the appropriate gate valve, three standards stand out prominently: API 600, API 6D, and ASME 16.34. Each of these standards has its own se

I. IntroductionIn Wenzhou, Zhejiang Province, the industry is booming. There is an increasing demand for key fluid control equipment like J-VALVES WCB large-diameter gate valves, and higher requirements are also placed on their services and response speeds. Thanks to its localized service system and

J-VALVES trunnion ball valves, relying on their design concepts that strictly follow international standards such as ASME, as well as their excellent material selection and technical advantages, have successfully met the stringent requirements of high-end users for valve performance and reliability. Whether in the petroleum, natural gas, or chemical industries, J-VALVES trunnion ball valves can provide reliable solutions to help customers achieve efficient and safe production goals.

The C95800 bronze ball valve is a high-performance valve product, widely used in working environments with corrosive media such as seawater, concentrated brine, sulfate and various chloride solutions. Its selection requires a comprehensive consideration of multiple factors to ensure the performance,

High voltage design and excellent sealing performanceStainless steel high-pressure ball valves are specifically designed for high-pressure environments and can withstand extremely high pressures while maintaining excellent sealing performance. Its sealing surface adopts an advanced hardened surfacin