Showing posts with label globe valve. Show all posts
Showing posts with label globe valve. Show all posts

Tuesday, June 11, 2019

CRANE Valves in Stock at Mountain States Engineering & Controls


Mountain States Engineering & Controls stocks Crane gate, globe, check and ball valves in their new warehouse in Golden, CO. They have Crane forged steel, cast steel, cast iron, bronze gate, globes and check valves up to 12”.   They also have carbon steel, stainless steel  and brass ball valves ¼” through 2”, as well as carbon steel and stainless steel Duo-Chek check valves up to 16”.

For more information, contact Mountain States Engineering & Controls.
https://mnteng.com
303-232-4100

Thursday, October 26, 2017

When to Use a Globe Valve for Fluid Process Control

cast iron globe valves
Cast iron globe valves are utilized extensively in steam,
HVAC, and other commercial and industrial applications
Image courtesy of Crane Co.
Industrial process control often involves the regulation of fluid flow. There are almost uncountable types and variants of flow control valves, each with a particular set of attributes that can make it the advantageous choice an application.

When the process calls for controlling flow over a range of possible values, known as throttling, a globe valve may be a good candidate for the application.

Globe valves are characterized by the change in direction of fluid flow as it passes through the valve and around the plug positioned in an opening through which fluid must pass. The plug is connected to a stem extending to the exterior of the valve body through the bonnet. Movement of the stem will reposition the plug in relation to the opening, providing a successively larger or smaller opening area through which fluid can pass.

Globe valves are available in tee, angle, and wye configurations, as well as an enormous range of special configurations to suit specific applications.
simplified globe valve diagram
Simplified globe valve diagram
Image courtesy Wikipedia


What are some potential advantages of globe valves?
  • Good throttling and shutoff capability
  • Comparatively easy maintenance
  • Comparatively short travel of plug from open to closed position
  • Seats can usually be resurfaced when worn
What are some limiting factors for globe valves?
  • Higher valve pressure drop than some other designs
  • No straight through fluid path
  • Potentially higher actuator torque requirements than other valve types
  • Seal area is unprotected from exposure to process fluid flow
When flow throttling capability is the overriding concern for an application, a globe valve is a good candidate for consideration. Share your flow control challenges with valve and automation specialists. Combining your process knowledge and experience with their product application expertise will produce effective solutions.

Monday, May 22, 2017

Introduction to Valve Parts or Components

cutaway view forged steel gate valve
Cutaway view of a forged steel gate valve
Courtesy Crane-ChemPharmaEnergy
Although there are many different classifications of valves specific to their respective functions, there are standard parts or components of valves you may find regardless of the classification. They are the valve body, bonnet, trim, seat, stem, actuator, and packing.

The Valve Body is the primary boundary of a pressure valve which serves as the framework for the entire valve’s assembly. The body resists fluid pressure loads from connected inlet and outlet piping; the piping is connected through threaded, bolted, or welded joints.

The Valve Bonnet is the opening of the Valve Body’s cover. Bonnets can vary in design and model, is built using the same material as the Valve Body, and is also connected to the entire assembly through threaded, bolted, or welded joints.

The Valve Trim collectively refers to all the replaceable parts in a valve, e.g. the disk, seat, stem, and sleeves––all which guide the stem as well.

The Valve Disk allows the passage or stoppage of flow. Disks provide reliable wear properties and differ in what they look like per valve type. For example, in the case of a ball valve, the disk is called a ball, whereas for a plug valve it is a plug.

The Valve Seat(s) or it’s seal rings provide surface seating for the disk. For example, a globe valve requires only one seat and this seat forms a seal with the disk to stop flow.

The Valve Stem provides the proper position which will allow the opening and closing movement of the Valve Disk. Therefore, it is connected to the Valve Disk on one end and the Valve Hand Wheel or the Valve Actuator on the other.

The Valve Yoke is the final piece in the valve’s assembly; the Yoke connects the Valve Bonnet with the actuating mechanism. The Valve Stem passes through the top of the Yoke which holds the Yoke or stem nut.

There are countless variants of valve designs, sizes, and configurations. These basic parts will be found on most, but the particular form and arrangement of the part may provide an advantage when employed for a particular application. Share your industrial process valve requirements and challenges with a valve specialist. Combine your own process knowledge and experience with their product application expertise to develop an effective solution.

Tuesday, March 21, 2017

Forged Steel Valves for the Toughest Applications

cutaway view forged steel gate valve with handle and weld socket connections
Forged Steel Gate Valve
Cutaway View
Courtesy Crane ChemPharma Energy
Forging steel produces material of greater overall strength and toughness for parts and assemblies subjected to higher levels of stress. Forging is basically accomplished by applying localized mechanical pressure across the base steel, eliminating internal voids and gas pockets, while producing a unique oriented grain structure in the metal that delivers increased fatigue resistance.

Higher pressure or temperature applications in fluid process control can benefit from, and sometimes may require, the use of forged steel valves. Their ruggedness and ability to hold up under tough conditions make forged steel valves a good choice for many uses throughout general industrial, oil and gas, and power generation installations.

Forged steel valves are available in a broad range of sizes, connection types, and port configurations. Crane, world class manufacturer of industrial valves, offers forged steel gate, globe, and check valves to provide options for flow direction, stop, and throttle control.

There are almost countless variants and configurations of industrial valves from which to choose. Share your fluid control requirements and challenges with an industrial valve expert, combining your own process knowledge and experience with their product application expertise to develop effective solutions.


Tuesday, November 8, 2016

Spiral-Trol Valve Disassembly Video

globe valves control valves pneumatic actuator
Globe control valves with pneumatic actuators
Spirax-Sarco
Spirax-Sarco is a globally recognized manufacturer of valves, traps, and a host of other steam system specialties. Their Spira-Trol line of globe valves can be employed throughout a steam of other process fluid system to provide accurate flow regulation. The valves are available with several options of electric or pneumatic actuators, as well as positioning controllers.

The video included below provides a demonstration of the simplicity involved in disassembling the valve in-line for regular maintenance or inspection. The video is short, as is the length of time needed to access the valve internals. These valves are designed for easy maintenance.

Share your fluid process and steam control challenges with application experts. The combination of your process knowledge and their product application expertise will deliver effective solutions.

Thursday, October 13, 2016

Stainless Steel Globe and Gate Valves For Industrial Process Control

stainless steel gate valve globe valve for industrial process control
Stainless Steel Gate Valve
CPE-Aloyco
Gate and globe valves see common usage throughout fluid processing industries. The correct procedure for valve selection includes an evaluation of the process media, environment, and how the valve will need to perform.

Gate valves, unless specially adapted, are intended for applications requiring only fully open or closed service. Their slow operation is advantageous at preventing hammering in the piping system and a fully open gate valve presents little pressure drop.

Globe valves are well suited for shutoff and throttling operation, controlling fluid flow at points between fully open or closed. The "Z" pattern of their fluid path does add some pressure drop.

Selecting the right valve construction material is an important element of a successful installation. Aloyco, a Crane brand, recommends consideration of several factors.
  • Type of media
  • Media temperature range
  • Pressure range, including all possible conditions
  • Environmental conditions which may affect the valve
  • Extraordinary stresses to which the valve may be subjected
  • Compliance with safety standards and/or piping codes
Stainless steel valve construction will provide an additional measure of corrosion resistance and may be a selection that extends the useful life of a valve.

More detail is included in the document included below. Share your fluid control requirements and challenges with a specialist, combining your process experience and knowledge with their product application expertise to develop effective solutions.



Tuesday, November 17, 2015

Mountain States Engineering and Crane Expand Their Relationship

Triple Offset Butterfly Valve
Krombach Triple Offset Metal Seated Valve
Courtesy Crane CPE


Mountain States Engineering and Controls has been selected as the new distributor of the Krombach branded valves from Crane CPE. MSEC has been a master distributor for various brands in the Crane family for fifteen years, and will be capitalizing on knowledge and experience gained from their many years of providing solutions in the industrial process control and valve fields. The Krombach branded valves complement the applications range of other industrial valves handled by MSEC.

The Krombach line includes:
  • Butterfly Valves - High performance, resilient seated, double-eccentric, triple offset and special purpose butterfly valves.
  • Ball Valves - Process one-piece, two-piece and three-piece, metal seated, soft seated and compact ball valves.
  • Globe and Angle Valves - Bronze, cast iron, cast steel and stainless steel globe and angle valves.
  • Gate Valves - Bronze, cast iron, cast steel and stainless steel gate valves.
  • Check Valves - Ball, dual-plate, foot, full body swing, steam stop, tilting disc, wafer style swing, nozzle-type and pressure seal check valves.
  • Vacuum Relief Valves - Available with flanged or threaded connections.
  • Aerating and Deaerating Valves - Essential for trouble-free operation of pipeline systems handling liquids.
  • Float Valves - Single seated and double seated versions for a variety of applications.
  • Throttle Valves - Available with flange connection, wafer- or weld-in type.
  • Bottom Drain Valves - Available manually operated or with a diaphragm actuator.
I have included below one of the many comprehensive data sheets available. More information on any application or product is available from the process control specialists at MSEC. Combining their product knowledge with your process mastery is the key to positive outcomes.

Friday, May 29, 2015

Industrial Valve Body Style and Flow Path: A Visual Illustration

fluid dynamics image
(Image courtesy of Wikipedia)
There are many types of valves body styles, each with their own unique flow characteristic and pattern. Valve design generally dictates optimum application service for any given use. For instance, globe or diaphragm valves provide excellent flow control because of a very linear flow characteristic and are used widely as flow control valves. Conversely, standard ball or butterfly valves are not good control valves because of their very non-linear flow characteristic, and special modifications need to be made to their discs or balls to improve linearity.

The following video illustrates the design and flow pattern for (4) types of valve: