crane safety valve free sample

When selecting valves, reference to codes of practice and other mandatory specifications should be made which may preclude certain types for specific applications.

Swing check valves, having 6 diameters of straight lengths of pipe upstream and 3 diameters downstream, are suitable for velocities up to 3 metres / second. If the valve is situated such that turbulent flow enters the valve, the velocity should not exceed 2 metres / second.

Horizontal lift check valves are used primarily for air, gas and steam services whilst swing check valves are most suitable for water and other liquids. For air, gas and low pressure applications, especially where bubble tight closure is required, a valve with rubber faced disc is necessary.

Compressed air service requires a horizontal lift check valve with a nitrile rubber facing on the disc and fitted with a recoil spring. The valve should always be installed as far away from the compressor as possible.

Double check valves are designed to prevent contamination of water caused by back syphonage, back flow and cross connection in supplies such as those to hose taps, cisterns, stand pipes, showers and basins.

Overhead cranes are essential for construction, shipping, and many other industries. Whenever using this (or any) type of crane, it is critical that the proper safety precautions are followed. One of these is going to be putting up the necessary safety signs on the crane, and in the area surrounding it. These signs will alert… …

Cranes are an essential part of many job sites, and they have really helped to revolutionize the construction industry as well as many others. Cranes also introduce a lot of potential hazards into an area, which must be addressed. There are many ways that a company can reduce the hazards associated with operating cranes, and… …

In any work environment where a crane is used, safety measures must be a top priority. Even minor problems with a crane can create significant safety hazards that could lead to massive amounts of damage as well as injuries or even fatalities to those in the area. There are many different things that can be… …

Crane safety is an important subject that deserves the attention of not only crane operators, but also those who work in the surrounding area. Implementing administrative controls related to the operation and safety of cranes can help to prevent a variety of different types of hazards. Administrative controls will help crane operators to better communicate… …

Operating a crane is an extremely important job. Due to the fact that cranes are such large pieces of machinery, and that they move such heavy objects, they can also be extremely dangerous. Taking steps to ensure crane safety is an important effort that everyone in the area has to take very seriously. One way… …

OSHA is responsible for ensuring companies in the United States are operated in a way that is safe for employees and the environment around the facility. When it comes to safety standards for cranes, derricks, and hoists, OSHA has a lot of different requirements that are designed to prevent accidents and injuries from taking place… …

Electric Overhead Traveling (EOT) cranes are one of the most common types of cranes used in factories and other locations today. They are a very efficient and relatively easy to use crane, and will be able to lift and move heavy loads without difficulty. The crane operator for this type of crane will typically work… …

Crane inspections need to be done on a regular basis in order to minimize the risk of something breaking, which could cause a disaster. OSHA requires that cranes be inspected monthly and annually to avoid potential problems. In addition, crane operators are required to perform pre-operation inspections to look for obvious problems that could cause… …

Keeping a crane in good working order is critical for any industry that is using these pieces of heavy machinery. Cranes can cost millions of dollars, so it makes sense to maintain them properly so they will last as long as possible. In addition, proper maintenance is required for the crane to operate safety, which… …

Overhead cranes are used regularly in a variety of different types of facilities. Crane operators should know how to use these cranes safely and effectively to avoid any type of problem. They also need to know how to leave the crane when it is not being used. Walking away from a crane improperly can put… …

Crane operators are responsible for a number of different activities in their day to day job. Anyone who is thinking about pursuing this as a career will want to learn as much as they can about what roles and responsibilities a crane operator has. Each employer is going to have a different set of specific… …

Crane operators are an important position in many different industries. They are used in construction, warehousing, shipping, manufacturing, shop floors, and many other situations. This is why there is significant demand for good crane operators. In order to get a job in this position, it is a requirement to go through training and pass a… …

Tower cranes are a common type of machine that are used to lift and move heavy objects from one place to another. They are often found at the top of large buildings during construction so that the materials needed to build can be safely brought up. They can also be found in harbor shipping areas… …

Electric Overhead Traveling Crane, or EOT crane for short, is a popular type of crane used in a variety of different environments. They are a type of overhead crane, and can also be called a bridge crane. The system consists of parallel runways that have a traveling bridge between them. The electric motors will allow… …

An overhead crane, which is sometimes known as a hoist overhead crane or a hoist bridge crane, is a type of crane that operates in one location for long periods of times. They are typically used in manufacturing, warehousing, or shipping locations but can be found in other places as well. The name overhead crane… …

There are many times when a crane operator will be in a position where they can’t easily see the load that they will be working with. In this case, they will have a qualified signal person standing near the load to help provide them guidance. When doing this, the qualified signal person will use a… …

Operating a crane is an important job, and one that needs to be done correctly. Any mistakes can result in misplaced loads, or worse, serious accidents. Due to the fact that cranes often have to pick up and move objects to or from areas that aren’t easily in view, there is sometimes a need to… …

Cranes are an essential machine for many industries. Due to the fact that it is so large, and it moves such heavy objects, it can also be very dangerous. Learning about the various hazards associated with using cranes will help to identify the risks in the workplace. Read on to discover some of the most… …

Cranes are incredible machines that help to keep modern manufacturing, warehousing, construction, shipping, and other industries moving strong. While these machines are essential for getting jobs done, they can also be very dangerous. To help improve workplace safety, make sure to follow these key safe operation tips for industrial cranes.

A crane is a popular machine that is used to lift objects and move them into the desired positions. They have been used for generations, though modern cranes have advanced significantly over the years. Today there are many different types of cranes used depending on the needs of a particular situation. Understanding the various options… …

As was recently announced, Instrumentation & Sampling (I&S) businesses including the brands of HOKE®, GYROLOK®, GO REGULATOR®, DOPAK® and TEXAS SAMPLING® have been acquired by Crane Co., a diversified manufacturer of highly engineered industrial products. With more than 165 years of industry experience and 12,000 employees across 25 countries, Crane Co. has a vast footprint.

Now, known as Crane I&S, this entity operates within Crane ChemPharma & Energy (CP&E), Crane Co.’s largest business in its Fluid Handling segment. Its trusted brands further complement Crane’s existing portfolio, aligning directly with the objective of providing solutions for demanding chemical, refining, and power applications.

Instrumentation and sampling are two critical aspects of the Fluid Handling industry that can significantly affect the outcome of the process and contribute to the health and safety of operators and the environment.

Essentially Crane I&S’ instrumentation products connect the process to the instrument to measure and control variables, including pressure, flow, level and analyzers for liquids, gasses and vacuum.

Its sampling products and systems, on the other hand, facilitate the safe collection of media from the process (a gas, vapor or liquid) that is then transported to a lab for testing and analysis. Without the use of our products and systems, the extraction of toxic samples can be an incredibly dangerous process, as it increases the risk of uncontrolled release, presenting significant safety hazards to the operator and the environment.

With the most comprehensive portfolio of valves, pipes and fittings, the addition of some of the industry’s most respected instrumentation and sampling brands allows Crane to provide even more comprehensive solutions.

HOKE® valves and fittings are recognized as the best in class for reliability and global distribution. In the early 1960’s, HOKE introduced the GYROLOK® tube fitting with a design that offers innovative advantages and benefits that are unmatched in the industry.

GO REGULATOR® is a leading global designer and manufacturer of standardized and specialty pressure regulators, diaphragm valves, and filters to the analytical, instrumentation, petrochemical, oil & gas, and specialty gas industries.

In 1925, the foundation for a leading global fluid control products company was laid when HOKE® began manufacturing small gas flow control valves for jewelers’ torches. In the early 1960s, HOKE® expanded its portfolio when it introduced a line of tube and pipe fittings branded as GYROLOK® featuring a patented design and offering innovative advantages that remain relevant today.

• A wide range of Instrument Valves spanning ball, plug, needle, check, pack-less (diaphragm and bellows sealed), pneumatic actuated, relief, bleed, toggle, plug, metering, excess flow, manifolds, gauge, hand and DBB in sizes from 1/16” to 1”.

Crane I&S recently introduced the GYROLOK™ XP, an advanced fitting engineered to deliver a higher integrity seal in mission-critical situations. Considered a “game changer” in severe service designs, the new XP directly addresses the technical weakness of fittings that feature a wedge-type front ferrule design.

Wedge type front ferrule designs, for example, can be over-tightened which can lead to lower pressure and safety issues. These fittings’ applications are sometimes subject to rapid temperature changes which can lead to (1) leaks, (2) fatigue damage where exposed threads contact corrosive materials and (3) vibration which can result in fatigue failures of screwed pipe joints. The GYROLOK™ XP, however, features a front ferrule with unique mechanical stop that prevents overtightening and a sizing angle that prevents tube sticking. These changes offer several benefits, including:

Around the time GYROLOK® was introduced, GO REGULATOR® was founded (1962), eventually becoming a globally recognized designer and manufacturer of standardized and specialty diaphragm valves and filters to the analytical, instrumentation, petrochemical, oil & gas and specialty gas industries. Furthermore, its line of pressure regulators includes single stage, back pressure, dome-loaded, high purity, liquid and gas pressure regulators, as well as filters for process analyzers.

Under the TEXAS SAMPLING® brand, Crane I&S offers several patented systems that can take samples of LPG liquids or gases. LPG sample systems enable operators to obtain samples of liquids with high vaporization pressures via a sample cylinder that can be easily transported. These cylinder saddles help ensure proper alignment and prevent leakage when connecting the cylinder. The design also bolsters operator safety by allowing the operator to maintain the proper outage. Any excess sample left in the system is also vented so that the pressure in the quick connects is reduced.

Crane I&S is pleased to present its recently rebranded CT76, a digital flow, pressure and temperature transmitter for use with process analyzers to provide monitoring and closed-loop control of chemical processes.

Crane I&S is the largest provider of instrumentation and sampling products in the world. From process to the instrument or sampling point, its portfolio is capable of forming a complete flow solution on its own without incorporating any other vendor products. However, its more than 95 years of engineering and application expertise can also simplify and enhance end users’ existing product solutions by developing innovative applications as solutions.

With facilities in Spartanburg, South Carolina; Houston, Texas; and Bergschenhoek, Netherlands, Crane I&S has the scale required to serve the global industry across the refinery/petrochemical, upstream, chemical CNG/LNG and hydrogen fuel cell applications, as well as other industrial. end markets, including nuclear, hydraulics and industrial gasses. As an example of its reach, products in the Crane I&S portfolio are currently installed in the Norwegian offshore Oil & Gas market, Saudi Arabian chemical plants, natural gas plants in West Africa and North America, marine applications in Sweden, and adjacent markets like hydrogen fuel and CNG, among others.

Due to buckling the failure load of a steel column in a building is estimated to 10000 N. With a safety factor FOS = 5 - the allowable load can be estimated by rearranging (1) to

In general there is a linear connection between load and stress and the factor of safety can within mechanical engineering for normal stress be modified to

Boiler explosions have been responsible for widespread damage to companies throughout the years, and that’s why today’s boilers are equipped with safety valves and/or relief valves. Boiler safety valves are designed to prevent excess pressure, which is usually responsible for those devastating explosions. That said, to ensure that boiler safety valves are working properly and providing adequate protection, they must meet regulatory specifications and require ongoing maintenance and periodic testing. Without these precautions, malfunctioning safety valves may fail, resulting in potentially disastrous consequences.

Boiler safety valves are activated by upstream pressure. If the pressure exceeds a defined threshold, the valve activates and automatically releases pressure. Typically used for gas or vapor service, boiler safety valves pop fully open once a pressure threshold is reached and remain open until the boiler pressure reaches a pre-defined, safe lower pressure.

Boiler relief valves serve the same purpose – automatically lowering boiler pressure – but they function a bit differently than safety valves. A relief valve doesn’t open fully when pressure exceeds a defined threshold; instead, it opens gradually when the pressure threshold is exceeded and closes gradually until the lower, safe threshold is reached. Boiler relief valves are typically used for liquid service.

There are also devices known as “safety relief valves” which have the characteristics of both types discussed above. Safety relief valves can be used for either liquid or gas or vapor service.

Nameplates must be fastened securely and permanently to the safety valve and remain readable throughout the lifespan of the valve, so durability is key.

The National Board of Boiler and Pressure Vessel Inspectors offers guidance and recommendations on boiler and pressure vessel safety rules and regulations. However, most individual states set forth their own rules and regulations, and while they may be similar across states, it’s important to ensure that your boiler safety valves meet all state and local regulatory requirements.

The National Board published NB-131, Recommended Boiler and Pressure Vessel Safety Legislation, and NB-132, Recommended Administrative Boiler and Pressure Vessel Safety Rules and Regulationsin order to provide guidance and encourage the development of crucial safety laws in jurisdictions that currently have no laws in place for the “proper construction, installation, inspection, operation, maintenance, alterations, and repairs” necessary to protect workers and the public from dangerous boiler and pressure vessel explosions that may occur without these safeguards in place.

The American Society of Mechanical Engineers (ASME) governs the code that establishes guidelines and requirements for safety valves. Note that it’s up to plant personnel to familiarize themselves with the requirements and understand which parts of the code apply to specific parts of the plant’s steam systems.

High steam capacity requirements, physical or economic constraints may make the use of a single safety valve impossible. In these cases, using multiple safety valves on the same system is considered an acceptable practice, provided that proper sizing and installation requirements are met – including an appropriately sized vent pipe that accounts for the total steam venting capacity of all valves when open at the same time.

The lowest rating (MAWP or maximum allowable working pressure) should always be used among all safety devices within a system, including boilers, pressure vessels, and equipment piping systems, to determine the safety valve set pressure.

Avoid isolating safety valves from the system, such as by installing intervening shut-off valves located between the steam component or system and the inlet.

Contact the valve supplier immediately for any safety valve with a broken wire seal, as this indicates that the valve is unsafe for use. Safety valves are sealed and certified in order to prevent tampering that can prevent proper function.

Avoid attaching vent discharge piping directly to a safety valve, which may place unnecessary weight and additional stress on the valve, altering the set pressure.

Load-control valves are used in hoist winches, also called pulling winches, mainly for mobile and ship cranes, as well as for ship winches and cable crane masts. Because the LCW valves include the function of a pipe-rupture valve, they are usually flanged directly to the hydraulic motors without intervening pipework or hoses.

The new LCW is not only particularly responsive and efficient, but is also much easier to install. How is that possible? The load-control specialists have succeeded in integrating the pilot pressure bypass, which normally needs a separate line, into the return line of the LCW valve. Another new feature is the integration of all design options into the control cover. The additional flanges on the opposite side of the motor that were previously required are now no longer necessary. There are therefore fewer components and less piping. That reduces installation costs as well as the risk of potential leakage points. An advantage that OEMs in particular appreciate.

Crane operators are especially pleased by the particularly sensitive and responsive starting behavior and the high positioning accuracy. Operating companies, however, are likely to welcome the greatly optimized energy efficiency. This results from the reduced pressure drop during lifting and by the reduced pressure, and pressure peaks during lowering. The pilot pressure is halved from 20 bar to just 10 at 350 l/min. Especially in times of exploding fuel costs, this saves money.

Manufacturers, shipyard workers, and construction workers depend on industrial lifting devices to move large, heavy objects. While lifting devices like derricks, hoists, and cranes improve productivity and make work easier, they require special attention when it comes to safety.

No matter the industry, employees using or working around cranes face numerous hazards. Effective crane safety depends on employers and workers understanding the hazards related to crane operation. Some of the most common accidents are caused by:

Power line contact: Cranes are large machines with a significant operating radius, making them more likely than other types of equipment to make contact with power lines. When a crane makes contact with a power line, workers touching the crane may be electrocuted. OSHA reports that a single contact can cause multiple injuries or deaths.

Overly large loads: Cranes are designed for a specific duty and load capacity. When operators exceed the rated capacity, the crane can tip over or the structure may collapse, injuring or killing nearby workers.

OSHA has numerous crane safety standards which can be grouped into three major categories: general industry (29 CFR 1910), maritime industry (29 CFR 1917 and 1918), and construction industry (29 CFR 1926). This section lists some of the regulations relevant to the hazards covered in the previous section.

Overly large loads: Exceeding a crane’s load rating can be disastrous. In response, OSHA has created numerous regulations that can help reduce hazards and keep employees safe:

Each industry (general, maritime, and construction) requires operators to strictly adhere to their crane’s rated load capacity. Additionally, every crane must have its load capacity clearly marked and a rating chart that lists the load capacity based on operational requirements.

Improperly supporting equipment: Failing to properly support cranes can have major consequences. OSHA enforces a series of regulations that are designed to reduce risks, ensuring the work environment remains safe:

These regulations agree on several important points. If a load will exceed the crane’s rating when used without outriggers, the operator must extend and support outriggers as the conditions require. Further, anytime a worker is working under equipment (boom, jib, and so on), it must be properly supported with blocking to prevent it from collapsing.

Both OSHA’s general industry and construction industries have specific regulations requiring employers and operators to pay particular attention to ground bearing conditions. Ground conditions must be stable and sufficient to support the crane’s load.

Poor visibility: Cranes are large, powerful machines. They move heavy loads that often obstruct the operator’s view. And when operators don’t have good visibility, the lives of workers and other people are put at risk.

These regulations are designed to keep workers safe and ensure that operators have the visibility and information they need to operate their cranes safely. In general, the regulations require:

Understanding OSHA regulations and having the right communication tools are vital for ensuring safe crane operation. Graphic Products offers a Crane Safety and Labeling report that can help you create a safe workplace through effective communication. Meanwhile, our line of DuraLabel printers and labeling supplies will ensure you have the right communication tools for any situation.