How do you identify a valve?

The tag itself should identify the valve, usually by showing the valve number. The type of valve and the system the valve is part of typically are identified. For example, the valve tag might read “200# Main Steam Shut Off.” This identifies the valve as the shutoff valve in the 200-pound main steam line.

What is valve tag?

Valve tags are a specific type of tag used to identify the contents and function of a pipe that the tagged valve operates. They are an integral part of any safety system that aims to reduce the risk related to spills, accidents, and injuries from improper use of valves within a facility.

How do you label valves?

3. Utilize Proper Tag Placement

1. Place pipe labels at all directional changes.
2. Place pipe labels on both sides of the entry points through floors and walls.
3. Place valve tags next to all valves and flanges.
4. Place pipe labels at 25-50 foot intervals on straight runs.

Why do we use valve tags?

Using valve tags is an important, though often overlooked, way of improving safety and efficiency in many facilities. When done properly, using valve tags can dramatically reduce the risk of spills, accidents and injuries related to the pipes and valves in your facility.

What are the markings on a valve handle?

Markings on covered quarter turn valve handles may not be integral with the base handle material. 2.3 Markings shall consist of numerals, letters, or symbols cast, forged, stamped, or otherwise made integral with the product; or markings on an identification plate attached to the product; or both.

What are the different types of pipe and valve identification?

HARSH ENVIRONMENT General Purpose Mechanically Applied Mechanically Applied Self-Sticking Characteristic B-689 Wrap-Around Polyester B-681/B-883 High Performance High Visibility B-915 BradySnap-On™ and Strap-On Vinyl B-946 Self-Sticking Vinyl B-736 Self-Sticking Plastic Film Plant Environment

Which is the correct valve size for Melling?

VALVE IDENTIFICATION CHART (Cont. ) Refer Head Diameter to Progressive Size Chart Melling PartNo. Head Diameter Valve Material Used V0679 1.484 Exh. High Alloy Steel V0686 1.500 Exh. High Alloy Steel V0690 1.403 Exh. High Alloy Steel V0696 1.940 Int. Steel V0702 1.870 Exh. High Alloy Steel V0703 1.875 Int. Steel V0707 1.825 Exh.

What are the markings on a unidirectional valve?

All additional markings shall be applied in such a manner as to avoid confusion with standard markings. 2.8 Flow or pressure indication shall be marked on unidirectional valves. Commonly used markings include arrows or the words “inlet” or “outlet” or “high pressure side” marked at an appropriate end. 3. MANUFACTURER’S NAME OR TRADEMARK