Valves and Instruments Blog

Archive for April, 2013

Identifying ASCO Solenoid Valves and ASCO Parts

Tuesday, April 30th, 2013

We pride ourselves are Valves & Instruments as being one the best resources for finding ASCO Solenoid ValvesASCO repair kits and ASCO replacement coils online.  With over 100 years combined experience, our ASCO support staff is ready to help with your request.

With untold thousands of variations, ASCO Solenoid Valves can be difficult to figure out.  But, with a few bits of information, you can make it really easy when you call us or email us.  If you’re into watching videos, all the tips you need will be in the video below.  Or just provide us with the following information from the metal tag on the coil and the inked information from the side of the coil.

  • • ASCO Catalog number is imprinted on the metal tag that holds the coil on the top of the valve.  Most of the time the number will have a letter indicating the revision level of the valve.  For instance, if you are looking for an 8210A1, try searching again with the letter G in place of the A.  So, search for 8210G1.
  • • The Catalog number only gets you part of the way.  You will also need to know the voltage of the ASCO Solenoid Valve.  You will find the voltage printed on the side of the coil.
  • • If you are looking for ASCO Repair Kits or Replacement ASCO Coils, the numbers are printed on the metal tag as well.

You should find most of the common ASCO Solenoid Valves and ASCO Repair Parts on our site.  But if you are having problems finding them, please call us at 877-211-0209 and one of our ASCO Specialists will be happy to assist you.

Large Diameter Metal Hoses

Friday, April 12th, 2013

We are now able to fabricate Flexible Metal Hoses in diameters up to 12 Inch. Here is a picture of our welder, Mike, proudly standing next to his latest creation. Nice work, Mike!

Learn more about our Metal Hose offerings here.

10 Inch Flexible Metal Hose

Our Welder, Mike, standing next to his latest creation

Selecting a Flexible Metal Hose is as simple as S.T.A.M.P.E.D.

Monday, April 8th, 2013

We want to do our very best to help you make the best possible choices when selecting your stainless steel flexible metal hoses. Taking extra care up front in the selection process can eliminate a lot of heart burn, give you longer service life and increase plant safety.

Here is an easy way to remember everything you need to consider:

S = Size
T = Temperature
A =Application
M = Media
P = Pressure
E = Ends
D = Delivery (Velocity and Flow)

Size: Need to know both diameter and length. Over the years we’ve witnessed a lot of customers installing hoses that are either too long or too short for the installation. A too long hose fails when the customer forces it to fit, compressing it end to end. A too short hose will either not provide the performance expected or will fail when the installer pulls on it length-wise to make it fit. Occasionally we get customers that want a hose with a useable live length of an inch or less, which is as effective as installing a pipe nipple. If you have any questions on your installation, call us and we can review it so you can get the best life possible out of the hose assembly.

Temperature: Need to consider both the temperature of the fluid in the hose and the ambient temperature to select the correct hose and end fittings. Is it a hot application that is exposed to people? We can protect it with Fire Sleeve to prevent burns. Concerned about a potential leak over time? Maybe an armor casing will reduce those concerns.

Application: Hoses are the flexible member of the piping system and are quite often not clearly thought out in the planning process (think afterthought). Hoses must be installed to prevent torquing, movement in more than one plane, compression, extension and over-bending. We need to consider how the hose is moving. What is the angle of movement and how often does it move? Is the hose meant to reduce vibration? What is the frequency and amplitude of the vibration? Is their risk of abrasion inside or outside the hose? The more you consider all aspects of the application up front, the longer your hoses will last.

Media: What is the fluid traveling through the hose? Make sure that the materials of the hose, end fittings and any gaskets you are using are compatible with the fluid.

Pressure: What are the minimum, normal and maximum pressures that the hose will see? Do you have any pressure surges? If so, how high and how fast does the pressure spike. Make sure that when you select a hose you use the derating factors for elevated temperatures and/or dynamic pressure spikes. Note that with metal hose that when pressure increases, so does the minimum bend radius. Selected end fittings typically have a lower pressure rating than the metal hose. Make certain you research the end fittings pressure capabilities as they may be your limiting factor in regards to pressure capability. Take a close look on our web site to all the technical hose information. Call us with any questions.

Ends: There are two ends to each hose (Duh) and we can attached virtually any type of fitting or fittings required to meet your application. Again, be careful in fitting selection to assure that they too meet the Pressure/Temperature/Media needs of your application

Delivery: What is the flow rate? In metal hose, since you don’t have a smooth interior, high velocities can cause a resonant frequency, which results in high vibration and premature failure. For example, maximum velocities for a straight run configuration of your metal hose with braid is 75 ft/second for liquids and 150 ft/second for dry gas. Bent in a 180 degree bend they are 19 ft/second for liquid and 38 ft/second for dry gas. Solutions are using a larger diameter hose or installing a “smooth bore” liner on the ID of the hose.