Blind Full Face Spacer: Thermoplastic Flow Isolation Components for Lined Pipe Systems
A Blind Full Face Spacer, also commonly referred to as a full-face blind spacer or solid flange blind, is a solid thermoplastic flange spacer designed to completely block flow in a piping system. Unlike ring spacers, it covers the entire flange face and includes a solid center with no bore, providing a positive shut-off and full sealing surface.
Overview
SG-P manufactures Blind Full Face Spacers specifically for lined-pipe systems, ensuring precise alignment, excellent chemical resistance, and reliable performance during maintenance, hydrotesting, or system shutdowns.
What Is a Blind Full Face Spacer Used For?
Blind Full Face Spacers are used when complete flow isolation is required without altering existing flange configurations. In many facilities, they may also be referred to as full-face line blinds or solid flange spacers. Regardless of terminology, their primary function is to create a secure, leak-free blockage within the pipeline.
Typical uses include:
- Isolating pipeline sections during maintenance or repair
- Hydrostatic and pressure testing
- Temporary or permanent system shutdowns
- Safety isolation for inspection procedures
- Preventing fluid passage in inactive lines
Applications and Industries
Blind Full Face Spacers are commonly used in industries that demand corrosion-resistant, non-metallic isolation components:
- Chemical & Petrochemical Processing: isolation for corrosive or reactive process lines
- Water & Wastewater Treatment: safe line breaks for servicing and maintenance
- Pharmaceutical & Food Manufacturing: non-contaminating isolation solutions
- Power Generation & Utilities: scheduled shutdown and maintenance isolation
- Marine & Offshore Systems: corrosion-proof isolation components in harsh environments
Thermoplastic Material Options
All Blind Full Face Spacers are available in premium engineering plastics selected for chemical compatibility, strength, and long service life:
- Polypropylene (PP): Cost-effective, lightweight, and resistant to many acids and alkalis
- PTFE (Teflon®): Exceptional resistance to aggressive chemicals and high temperatures
- PVDF (Kynar®): Flame-resistant, UV-stable, and highly durable in harsh environments
SG-P specifications are based on lined-pipe dimensions, and spacers can be custom-machined to meet specific thickness or application requirements.
Design Features
- Full-face design for complete flange coverage
- Solid center with no bore for total flow blockage
- Precision-machined for lined-pipe flange dimensions
- Non-conductive and corrosion-resistant materials
- Smooth sealing faces for optimal gasket contact
- Compatible with Class 125 and 150 flange systems
Why Choose SG-P Blind Full Face Spacers?
- Over 50 years of custom thermoplastic fabrication expertise
- In-house machining ensures tight tolerances and consistent quality
- Fast turnaround for standard and custom sizes
- Proven performance in corrosive and non-metallic piping systems
- Comprehensive line of thermoplastic spacers including Ring, Full Face, Blind, Orifice, and Reducing designs
Request a Quote or Custom Configuration
Need a Blind Full Face Spacer built to your exact specifications? SG-P offers made-to-order spacers—also known as full-face blind spacers or solid flange blinds—in various materials, sizes, and thicknesses to match your lined-pipe system requirements. Contact our team today to discuss your application or request a custom quote.
Request a Quote