Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

Valve orientation. Even if gravity is not on your side, EGC is.

EGC
EGC

Valve orientation. Even if gravity is not on your side, EGC is.

If you’re working on an upright valve, you’ve got many things working in your favor. The first is gravity. From a vertical orientation, you can be pretty sure that gravity will help the bonnet OD and the body ID align a whole lot easier. The bonnet can be pulled up and secured with just the right amount of torque if you follow EGC guide lines.

But what if the valve is laying in a horizontal position maybe on its side, back or belly? It’s in a strange location and it’s one that has gravity working against you. When this happens, we’ve got some tips for you when you’re replacing a pressure or stem seal.

With gravity working against you, what was once centered is now on its side. The bonnet can “cock” and get snagged in the body. So, it is important to note the gap that is between the backing ring and bonnet OD. If there is a large gap it is best to replace the backing ring with a new one so that it can act as a bearing surface and help keep the bonnet concentric with the body ID.

The last tip is to insert a gland follower into the stuffing box and over the stem. Use a pully to hold the stem parallel with the valve. As the bonnet slides into the valve it will reduce the amount of drag on the valve body.

As a maintenance and repair technician, we’re certain that you’ve seen dozens of horizontal or skewed valve placements. Fact is, we’re just trying to help you do your job better. So, give us a call if you have a question at 440.285.5835. We are eager to assist.

Related Articles

Related Whitepapers

What is Water Hammer and Why It Is Important to Prevent?

Water hammer (or hydraulic shock) is the momentary increase in pressure inside a pipe caused by a sudden change of direction or velocity of the…

Five Reasons To Choose A Bearingless Torque Sensor

Benefits that improve your torque measurements Best real-world accuracy Highest Overload Highest Overrange

Advanced Sealing and Condition Monitoring Strategies In Water and Wastewater Plants

Introduction As a plant/maintenance manager or reliability engineer for a water or wastewater facility, you want to know about the best technologies to help your…

Downthrust Measurement in Vertical Pumps Prevents Failure: The Benefits of Measuring Axial Force in Real-Time

“Himmelstein’s Thrustmeter has proven to be accurate and repeatable, which are two of the main things that define quality in an instrument. It’s been a…

Comments

Leave a Reply

Your email address will not be published. Required fields are marked *