Views: 3 Author: Logo of the AS-Schneider Group - valves and manifold manufacturer. Publish Time: 2023-06-17 Origin: Logo of the AS-Schneider Group - valves and manifold manufacturer.
The direct mounting style connects the pressure instruments straight to the manifold. To do so, a combination of flange and threaded connections are in use. There are some highly appreciated benefits to this style. For instance, it improves energy efficiency by shortening system flow paths. The pressure drop reduces and heat loss goes to a minimum. Other advantages are: Lower installation cost Simpler maintenance Fewer potential leak points Full system support on hard pipesDirect mounting
In remote mounting, the manifold’s installation is done away from the instruments. The linking is possible thanks to the use of threaded connections only.
There is a plus side to remote mounted valve manifolds:
Increases the instrument's protection from extreme process temperatures.
Eases the installation process using tubing and tube fittings.
Grants the deployment of standard instrument manifolds.
An extensive line from several manufacturers of valve manifolds for pressure and differential pressure gauges exists in the market. To facilitate the selection process for you, here are some of the desirable features to look for:
One-piece single body design
Bubble tight shut off valves to ensure leakage free performance and functional safety
Non-rotating needle for smooth operation and minimum wear of sealing elements
S-bar valve handles for ease of operation ergonomic handle design for ease of operation
Valve seat options: Metal to Metal, Soft Tip PCTFE or POM
Metal to Metal back seat to release packing stress, increasing its lifespan
Stem threads that are protected from process media to prevent galling
Cold rolled stem threads for increased wear and fatigue resistance
Blow-out proof needle
Lock pin to prevent unauthorized removal of the bonnet
Anti-tamper valve head design to prevent unauthorized opening and closing of the valve
Color coded dust cap for operating thread protection and functional identification
High working pressure range of up to 420 bar (6.092 psi)
Panel mount design
Gland packing to provide maximum sealing with minimum air adjustment
Body material choices include carbon steel or stainless steel
Standardized center distances of 37 mm and 54 mm for commonly used process transmitters
Carbon filled PTFE packing for TA-Luft compliance
Special body material choices from Duplex to Super Duplex and Alloy 400 to Alloy C-276
Valve bonnet with replaceable bonnet sealing washer arrangement
Compliance with industry standards for prevention of fugitive emission, sour gas service and oxygen service.
Operators have a lot to gain from valve manifolds. Even more so when comparing them to the arrangement of individual valves. Characteristics like the small space needs and the high reliability throughout the installation, operations, and maintenance phases go a long way. They create staggering qualities hard to ignore. So, let’s summarize them into these advantages for everyone to know:
Reduced chances of leakage due to fewer connections and joints.
Less installation costs thanks to the compact size, which requires fewer fluid connections.
Complete assembly is fully pressure tested.
Reduced time for installation and maintenance.
Compact size fit for installations in confined spaces.
Availability in several designs for use in instrument, remote-mount, direct-mount, and module systems.
Improved layout with fewer hoses and connections.
Simplified operations.
Shorter flow path, helping reduce pressure drop and heat loss, thereby improving the overall efficiency.
Increased reliability and enhanced operator safety.
To wrap up, we want to leave you with a summarized context of what we just shared on valve manifolds. So that you can make a better selection as a designer or operator.
Valve manifolds are devices that bring great flexibility, safety, and reliability to fluid control operations. Their clever design pushes forward the operator’s capabilities in a wide setting of scenarios, making it possible to test, vent, block, or bleed process lines without shut down.
But that’s not it!
They also simplify core aspects of process variable measurement, enhancing the gathering of pressure (gauge and differential), flow rate, level, and temperature data. All that while reducing to a minimum the chances of fluid leakage along the path.
Their high functionality is due to the specificity of the different models available:
✓ 2-valve manifold
✓ 3-valve manifold
✓ 5-valve manifold
×Dismiss Alert
✓ Horizontal body style
✓ Vertical body style
×Dismiss Alert
✓ Direct mounting
✓ Remote mounting
×Dismiss Alert
Each one provides features suitable to industry applications in oil and gas, petrochemical, energy generation, and more.
Any setup selected to work with is easy to install, operate, and maintain. The efficient performance, compact size, and affordability metrics succumb the bulky individual valve-by-valve arrangement as a second-best option within this field.
For all these reasons, and probably more, valve manifolds are the preferred option to handle the tough dynamic of a system with two or more valves in the same spot.
