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In modern electrical installations, Form 7 conduit bodies play a crucial role in ensuring safe, accessible, and flexible conduit runs. These fittings are designed to connect and redirect electrical conduits while providing a weatherproof enclosure for wire pulling, splicing, and maintenance.
As a professional manufacturer and exporter of Form 7 conduit bodies in China, OMEJA CASTING supplies a full range of Form 7 conduit bodies LR, T, LL, and LB, made from die-cast aluminum, malleable iron, or stainless steel. Each product meets UL 514A, CSA, and NEMA 4/4X standards, making them suitable for both indoor and outdoor electrical systems.
Form 7 conduit bodies are part of a standardized conduit fitting family used for connecting rigid conduit (RMC) or intermediate metal conduit (IMC).
They provide:
Access to conductors for maintenance and inspection
Smooth directional changes in conduit runs
Protection against dust, moisture, and impact
Each body features a removable gasketed cover that allows electricians to easily access the interior wiring without dismantling the conduit system.
Feature | Form 7 Conduit Body | Form 8 Conduit Body |
Material | Die-cast aluminum / Malleable iron | Malleable iron / Aluminum |
Cover & Gasket | Flat, screw-on type | Raised cover for more capacity |
Applications | General commercial & industrial | High-capacity or larger wire volume |
Standards | UL 514A / CSA C22.2 | UL 514B / CSA C22.2 |
Conduit Types | Rigid / IMC | Rigid / IMC |
Form 7 conduit bodies are ideal for most standard wiring layouts, balancing cost-efficiency, accessibility, and durability.
OMEJA CASTING offers various material configurations to suit different environmental and mechanical requirements.
Material | Finish | Key Benefits |
Malleable Iron | Hot-dip galvanized or epoxy-coated | High strength and corrosion resistance |
Die-Cast Aluminum | Natural aluminum / Powder-coated | Lightweight and corrosion-proof |
Stainless Steel (SS304 / SS316) | Polished or passivated | Superior resistance to salt and chemical exposure |
All conduit bodies come with stainless steel cover screws and neoprene gaskets to maintain a weatherproof seal.
Each conduit body shape serves a specific purpose in the conduit system. Below is a breakdown of the most common types — LB, LL, LR, and T.
LB conduit bodies are among the most widely used types in Form 7 series. They have an opening on the back (flat side) and are used for 90° conduit bends where the conduit runs from a wall and turns outward.
Applications:
Wall-mounted conduit systems
Outdoor electrical distribution
Service entrance conduit runs
Advantages:
Easy wire pulling from the rear
Compact design for tight spaces
Maintains full wiring protection in corner installations
LL conduit bodies feature an opening on the left-hand side (when facing the cover) and are used when the conduit needs to turn 90° to the left.
Typical Uses:
Industrial wiring where space is limited
Conduit runs that route around left corners
Electrical control panel installations
Benefits:
Simplifies left-turn connections
Reduces wire bending stress
Gasketed cover ensures weatherproof protection
LR conduit bodies are mirror images of LL types, with an opening on the right-hand side.
They are often used in right-angle conduit runs, especially in commercial buildings and equipment connections.
Applications:
Machinery and equipment connections
Corner conduit routing in mechanical rooms
Junctions for outdoor control boxes
Features:
Facilitates wiring access for right bends
Durable construction for long service life
Compatible with both RMC and IMC conduit
T conduit bodies have three conduit openings arranged in a “T” configuration — one on each end and one at the middle of the run.
This design allows a branch conduit connection, enabling electricians to split the wiring in multiple directions.
Applications:
Distribution and branch conduit systems
Motor control centers and switchgear
Complex wiring networks
Advantages:
Enables branching from the main conduit
Provides easy access to three conduit lines
Strong cast body withstands mechanical impact
Trade Size (inches) | Material Options | Compatible Conduit Type | Body Style Available |
½" | Aluminum / Iron | Rigid / IMC | LB, LL, LR, T |
¾" | Aluminum / Iron | Rigid / IMC | LB, LL, LR, T |
1" | Aluminum / Iron / SS | Rigid / IMC | LB, LL, LR, T |
1-¼" | Aluminum / Iron | Rigid / IMC | LB, LL, LR, T |
1-½" | Aluminum / Iron | Rigid / IMC | LB, LL, LR, T |
2" | Aluminum / Iron / SS | Rigid / IMC | LB, LL, LR, T |
2-½" – 4" | Malleable Iron | Rigid / IMC | LB, T |
Custom sizes and threading (NPT or BSP) can also be manufactured for international projects.
Precision-Cast Body: Ensures smooth conduit threading and alignment
Removable Gasketed Cover: Simplifies maintenance and inspection
Threaded Hubs: Provide secure conduit connection without welding
Compact Profile: Fits easily in limited-space installations
UL Listed & CSA Certified: Complies with North American safety codes
Temperature and Corrosion Resistance: Suitable for harsh industrial environments
Ease of Maintenance:
The removable cover allows wire pulling and splicing without removing conduit runs.
Flexibility in Layout:
Available in multiple configurations (LB, LL, LR, T) to match complex routing paths.
Improved Safety:
Fully enclosed body prevents moisture, dust, and chemical ingress.
Cost-Effective System Design:
Eliminates the need for extra junction boxes in tight spaces.
Weatherproof Design:
Ideal for outdoor or industrial applications with IP65 or IP66-rated sealing.
As a custom Form 7 conduit bodies manufacturer in China, OMEJA CASTING offers:
Custom casting molds with your brand logo
Non-standard conduit entry sizes (metric or NPT)
Optional colors and coatings (grey epoxy, silver galvanizing, or natural finish)
Stainless steel versions for marine applications
Bulk export packaging with private labeling
Our production process combines CNC machining, pressure testing, and precision casting to ensure superior accuracy and reliability.
Each Form 7 conduit body undergoes strict inspection procedures:
Dimensional accuracy check
Pressure leak test for gasket sealing
Thread gauge testing for NPT/BSP precision
Salt spray test (48–72 hours) for corrosion resistance
Load and impact tests according to UL 514A
All products come with quality certificates, inspection reports, and traceable batch numbers.
Industry | Common Use |
Construction | Building conduit routing and junctions |
Oil & Gas | Explosion-proof wiring systems |
Water Treatment Plants | Corrosion-resistant conduit paths |
Manufacturing Plants | Machinery power and control wiring |
Commercial Facilities | Electrical room and HVAC wiring |
Marine & Offshore | Stainless steel conduit networks |
Parameter | Aluminum Form 7 Body | Malleable Iron Form 7 Body |
Weight | Lightweight | Heavier |
Corrosion Resistance | Excellent | Moderate |
Strength | Moderate | High mechanical strength |
Cost | More economical | Slightly higher |
Best Application | Indoor / Outdoor general wiring | Heavy-duty or hazardous areas |
Q1: What’s the difference between LB and LL/LR conduit bodies?
A: LB has a rear cover opening, while LL and LR are for left or right 90° conduit turns respectively.
Q2: Can Form 7 conduit bodies be used in outdoor installations?
A: Yes. With gaskets and corrosion-resistant coating, they are suitable for outdoor and industrial use.
Q3: Are your Form 7 conduit bodies UL listed?
A: Yes, all products comply with UL 514A and CSA C22.2 certifications.
Q4: Do you provide OEM production for electrical brands?
A: Absolutely. We specialize in custom conduit body manufacturing for OEM and export markets.
Q5: What’s the maximum conduit size available?
A: Standard range is from ½ inch to 4 inches, with special sizes upon request.
Q6: How can I order Form 7 conduit bodies from China?
A: Contact whp@omj-casting.com with your type, material, and quantity. Our sales team will send a quote and datasheet within 24 hours.
Over 15 years of experience in electrical conduit fittings
Advanced foundry with ISO 9001:2015 quality certification
Full series of Form 7 conduit body types (LB, LL, LR, T)
Competitive pricing and international shipping support
Trusted by customers in North America, Europe, and the Middle East
Form 7 conduit bodies — including LB, LL, LR, and T types — are indispensable components in modern conduit wiring systems. They ensure safe, accessible, and weatherproof connections across residential, commercial, and industrial environments.
As a custom Form 7 conduit body manufacturer and exporter from China, OMEJA CASTING is committed to delivering precision-engineered, UL-listed conduit fittings that meet global standards for quality, safety, and performance.
Company: OMEJA CASTING
Phone: +86-15243599988
Email: whp@omj-casting.com
Address: Longnan Economic and Technological Development Zone, Longnan City, Ganzhou City, Jiangxi Province, China
OMEJA CASTING – Professional Manufacturer of Form 7 Conduit Bodies (LB, LL, LR, T).
Reliable performance. Certified quality. Built for your wiring system.