Pressure Archives

What is a valve manifold and where are valve manifolds used?

Valve manifold configurations for diverse industrial plant applications.

Valve manifolds are flow management devices of ever-growing interest for operators, maintainers, and design teams worldwide. Even under today’s landscape of ongoing innovations, they continue to be a go-to technical solution for fluid control in systems. When two or more valves are involved, that is.

Since their deployment extends across diverse processes in several industries, it is only fitting to seize the opportunity to offer knowledge on them.

What are valve manifolds? When to use them? What configurations are available?

These are some of the questions to address in this introduction feature. Please, continue reading below to get the details.

Cryogenic valves for LNG application – Part 2

In our second part of the cryogenic valve series I would like to responsive on questions like “What are the challenges of using cryogenic?”, “Selecting a valve for cryogenic service.”, “How can engineers ensure tightness of cryogenic valves?” and “What should engineers pay attention to during assembly of cryogenic valves?”.

Assembly clean cryogenic Cryogenic valves LNG LNG application lubricate manifolds Pressure primary isolation valve sealing ship Single and dual flapper check valves stem temperature Tightness Triple offset rotary tight isolation valves valves

Cryogenic valves for LNG application – Part 1

One of our customers needed a primary isolation valve for a pressure measurement on a container ship. The ship uses natural gas power. The valve had to meet the Fire Safe API requirements. It also had to pass a cryogenic test with liquid nitrogen (-196 ° C). The container ship rides under the American flag. Thus, an independent examiner had to administer the test. This examiner came from the American Bureau of Shipping (ABS) and the US Coast Guard.

Assembly clean cryogenic Cryogenic valves LNG LNG application lubricate Pressure primary isolation valve sealing ship Single and dual flapper check valves stem temperature Tightness Triple offset rotary tight isolation valves

Small, but powerful: Low torque for a smooth operation

Difference between non-rotating stem designs for a low torque.

During my last 12 years in the instrumentation business I have been asked many times at which pressure a manifold can still be operated. As well as, what is the difference between the following two non-rotating stem designs:

Back Seat Low Torque manifold Pressure safety Smooth Operation Stem Designs Stem To Needle Interface

Tamper-proof solutions

Tamper-proof valves against unauthorized access.

Pressures of several hundred bar, temperatures up to 600 degrees Celsius: Industrial valves, such as those used in power plants, the oil and gas industry or in chemical process systems, work under the most arduous conditions. In such cases, safety is the most important aspect. Not only the enormous pressure, but also the often toxic or aggressive process media can quickly become a hazard for people and the environment.

Accidental Operation Anti-Tamper Key Anti-Tamper Valve Head Unit industrial valves Pressure safety Stainless Steel Handwheel Tamper-Proof Unauthorized Access