Prevent Injury and Damage
Safety Spray Shields are used to prevent injury to personnel or damage to equipment in the event of a leak or spray-out of acids, caustics, chlorine, and other dangerous liquids at piping connections (such as flanges, valves, or expansion joints) found in chemical, pulp/paper, petrochemical and wastewater treatment plants. These Safety Shields are commonly referred to as flange guards, flange covers, flange diapers, or flange protectors. Our Safety Spray Shields are constructed from PTFE, polypropylene, PVC, polyethylene, and stainless steel.
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Cloth
Our plastic cloth shields are manufactured from single and multilayered clear cloth for easy visibility or a colored cloth with a leak indicating patch. Weep holes located behind the sensitive pH indicating patch allow the indicator to immediately signal a leak and change color to red in the presence of an acid or green if an alkali. The pH patch is also replaceable which allows the shield to be reused. APS shields are UV stabilized and resistant to sun, rain, and fumes. They may be used indoors or outdoors. Our cloth shields are quickly and easily installed by one person without any tools by means of a Velcro fastener and drawstrings which are standard.
Cloth shields are available in five different materials and eight various styles.
Can be customized for any and all special requirements or applications.
Available for all standard 150# and 300# flanges.
Cloth Options
PTFE
PTFE coated glass cloth
PTFE thread and drawstring
Maximum operating temperature 450 °F
Fire and tear resistant
Standard color is brown
Broad spectrum of chemical resistance
Styles available are standard, single-ply, premium, clear PTFE, and PTFE supershield
Premium
Outlasts all other brands on market
3-Ply multi-layered construction
Laboratory test proven
High PTFE content for severe applications
PTFE Super Shield
Solid PTFE construction (expanded PTFE cloth)
PTFE or Nomex cord, thread, and reinforcement
Suitable for applications where coated glass is not acceptable
Reinforced construction through multi-layered design
White in color
Standard
3-ply multilayered reinforced construction
Laboratory test proven
Our most popular and best selling shield
Single-Ply
Similar in design to standard PTFE shield
Same quality construction except single-layered for less severe applications
Clear PTFE
Similar in design to standard PTFE shield
100% clear PTFE strip in center of shield allows for visual inspection
Additional Cloth Options
Polypropylene
100% black polypropylene cloth, thread, and drawstring
Polypropylene stiffener lines the interior for added protection.
Maximum operating temperature 200 °F
Polyvinyl Chloride (PVC)
Manufactured from yellow, reinforced polyvinyl chloride
Reinforced thread and drawstring
Maximum operating temperature 170 °F
Polyethylene
Manufactured from transparent, reinforced Polyethylene
Reinforced thread and drawstring
Maximum operating temperature 170 °F
Shields & Covers
VALVE SHIELDS
Available in same cloth and metal materials as other shields
- Manufactured to fit all types of valves:
- Butterfly
- Globe
- Check
- Diaphragm
- Gate
- Ball
- Plug
EXPANSION JOINT SHIELDS
Manufactured from single, clear, and standard PTFE only
Same quality design as other cloth shields
pH indicating patch to signal leaks
Weep holes behind patch allow indicator to change color
Attached by Velcro fasteners and drawstrings
Allows for movement of the expansion joint without any change in effectiveness
Available for all brands and styles of expansion joints
“Recommended by most manufactures of PTFE lined expansion joints.”
PIPE VENT COVERS
Designed to cover pipe vent outlets on safety relief valves and rupture discs.
Manufactured from heavy duty polyvinyl chloride (PVC)
Weatherproof: prevents rainwater and snow from entering pipe
Keeps out birds and insects
UV stabilized and chemical resistant
Easy to install
Contains drawstring for securing
Contains grommet with rope attached to prevent loss
Available for all pipe sizes
Available in angle or straight cut