Fiber Vault Overview for Underground Infrastructure
As industry experts in telecommunications infrastructure, we present the UG-FH-1730 Series Fiber Vault - engineered specifically for reliable underground network protection. Our fiber vault solutions demonstrate proven expertise in composite material technology, delivering superior performance compared to traditional concrete enclosures.
Key Fiber Vault Advantages for Network Deployment

Robust & Lightweight Construction: High-strength SMC molding provides structural integrity in an easy-to-handle, lightweight format, reducing installation effort and cost.
Rapid Deployment Design: Knock-down panels with tool-free PC clip connections enable fast on-site assembly, saving significant time and labor.
Superior Environmental Resistance: Engineered to be non-corrosive, non-conductive, and UV resistant, ensuring long-term reliability and a service life that exceeds HDPE.
Flexible Conduit Entry: Pre-molded knock-out duct holes with sealing covers allow for easy, customized cable access as needed.
Integrated Cable Management: Metallic brackets simplify equipment installation and provide ample cable looping space, while vertical and horizontal structural beams guarantee overall durability.
Proven Compliance: The entire construction is designed to meet the durability and resistance requirements of the SCTE-77 Tier22 standard.
Professional Fiber Vault Applications
Telecommunications network access points
Municipal infrastructure projects
Utility distribution systems
Transportation communication networks
Fiber Vault Manufacturing Excellence
Unigreat operates certified ISO 9001:2015 and ISO 14001:2015 manufacturing facilities with advanced material and mechanical testing laboratories. Our fiber vault production complies with EN124, EN1433, AASHTO, SCTE 77, and AS3996 international standards, ensuring reliable performance for underground infrastructure applications.
Certified Fiber Vault Technical Specifications
| Model | Internal Dimensions | External Dimensions | Weight | Load Rating |
|---|---|---|---|---|
| UG-FH-1730A | 17"×30"×24" | 21"×33"×24" | 109.2 lbs | SCTE-77 Tier 22 |
| UG-FH-1730B | 17"×30"×36" | 21"×33"×36" | 147.2 lbs | SCTE-77 Tier 22 |
| UG-FH-1730C | 17"×30"×48" | 21"×33"×48" | 170.5 lbs | SCTE-77 Tier 22 |



Authoritative Fiber Vault Component Analysis
| Component | Specification | Weight | 1730A | 1730B | 1730C |
|---|---|---|---|---|---|
| UG-FH-1730S | Short Side Panel 22"×24" | 13.36 lbs | 2 | 2 | 4 |
| UG-FH-1730L | Long Side Panel 34"×24" | 17.28 lbs | 2 | 2 | 4 |
| UG-FH-1730C | Vault Cover 21"×32" | 47.95 lbs | 1 | 1 | 1 |
Trusted Fiber Vault Accessory System
| Component | Industry Specification | Quantity | Certified Function |
|---|---|---|---|
| CLP652 | UL 94V-0 Rated Clip | 8 | Structural Connection |
| SHSM1270 | ASTM A574 Screw | 4 | Cover Security |
| BKT822 | Galvanized Steel Bracket | 4 | Cable Management |
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