Selection Guide: Product Part Numbers

For product identification, RAMCO® uses a three part code system. The first three or four digits identify the material from which the shield is made — TFE, VUE, PPL, PPL (VUE), PVCR, etc. The second part denotes the pressure rating of the pipeline, such as 150 psi and the third, gives the pipe size.

An example for a flange shield is PPL-150-2:

“PPL” indicates the material from which the shield is made
“150” is the pipe pressure rating
“2” is the pipe size

Frequently used RAMCO® product identification codes follows:

	First Digit Grouping:
	TFE - tetrafluoroethylene coated fiberglass VUE - TFE/ECTFE PPL - polypropylene PPLV - PPL/ECTFE PVCR - polyvinyl chloride (red) PVCW - polyvinyl chloride (white) PVCC - polyvinyl chloride (clear) PE - polyethylene 304 - “304” stainless steel 316 - “316” stainless steel GAL - galvanized steel
	Second Digit Grouping:
	150 - 150 psi 300 - 300 psi 600 - 600 psi 900 - 900 psi 1500 - 1500 psi 3000 - 3000 psi TEE - Tee CPG - Coupling ELB - Elbow UNI - Union
	Third Digit Grouping:
	From 1/4” up to 60” Pipe Size

Metal shields, galvanized and stainless steel, for special conditions may be fitted with a mesh Liner (M). An example of the product code for a “304” flange shield for a 3” pipe with a mesh liner and a pressure rating of 600 psi is:

304M-600-3

If a mesh liner is not required, the product code is:

304-600-3

Expando-Gard® Shields

As with flanges, the first digit grouping identifies the material of the Expando-Gard® Shield. The second grouping is EXP. The first set of numbers after EXP indicates the number of convolutions (1-10) of the joint and the following group, the pipe size (1/2” – 60+”). An example for a 20” 8 convolution expansion joint that is to be shielded in TFE is:

TFE-EXP-8-20

Valve Bonnet Shields

Valve Bonnet Shields are specially designed for gate and globe valves. And in some instances, Bonnet Shields are used for large diaphragm valves.

The product code describes the material from which the shield is made followed by the two essential measurements of the valve — Height and Circumference.

An example for a 2” gate valve with an 8” height and a 16” circumference that is to be shielded with VUE (TFE/ECTFE) is:

VUE-816

Valve-Gard® Shields

Because of the wide variety of valves and valve manufacturers, product codes for valve shields are quite complex. To keep it simple, we suggest that the basic information be provided:

pipe size
type of valve
its connection — flanged/threaded/socket weld
pressure rating
valve manufacturer’s name
valve model number

Metal Drain Gard® Shield

For flange Drain-Gard® Shields, the product code is similar to that for flange shields. Since they are fabricated in either “304” or “316” stainless steel, the first group of digits includes either set of numbers followed by “D”. This is followed by the pressure rating of the system and lastly, the pipe size.

The product code of a RAMCO® Drain-Gard® Shield for a 4” 300 psi flange in “316” is:

316D-300-4

Metal Lined Drain Gard® Shields

The product code for this shield is similar to the Drain-Gard® Shield except “L” is used to signify the shield lining. An example of a 2” 600 psi “304” stainless steel lined Drain-Gard® is:

304LD-600-2

The type of lining must be stated since it is not part of the product code.

“See-Thru" Drain Gard® Shields

Not only are the Vue- and the PPL (Vue)-Drain-Gard® Shields available for flanges, but they can be fabricated for valves, expansion joints and other fittings. The product codes for either thermoplastic material for a 3” 150 psi flange are:

VDG-150-3
PPVD-150-3

Product codes for other joint connections warrant discussion with local distributors or Ramco® personnel.

Lest you forget ...

To select the appropriate RAMCO® Safety Shields for any pipe connection, it is necessary to know:

chemical flowing though the valve
temperature of the chemical
pressure rating of the system

For special or custom shield fabrication technical assistance is available from the RAMCO® Technical Services Group.