8″ Mechanical Joint Accessory Kit

8″ Mechanical Joint Accessory Kit for ductile iron mechanical joint and HDPE MJ adapter connections

  • Size: 8″
  • Joint Type: Mechanical Joint (MJ)
  • Gland: ASTM A536 Ductile Iron
  • Gasket: SBR Rubber
  • Fasteners: 1045 Steel T-Bolts and Hex Nuts

Product Overview

The CQ 8-inch Mechanical Joint Accessory Kit provides the components required for mechanical joint connections, including a ductile iron gland, SBR rubber gasket, T-bolts and hex nuts. The kit is designed for assembling and sealing mechanical joint connections for ductile iron pipe, compatible fittings, valves and hydrants, as well as HDPE MJ adapter applications.

Technical Specifications

  • Product Type: Mechanical Joint Accessory Kit
  • Size: 8″
  • Joint Type: Mechanical Joint (MJ)
  • Components: Ductile Iron Gland, SBR Rubber Gasket, T-Bolts and Hex Nuts

Dimensions

Gland and Fastener Dimensions

MJ gland engineering cross-section
MJ gland engineering cross-section
Dimension Value Metric
Size 8″
DI Pipe Diameter 9.05 in 229.87 mm
C 10.17 in 258.32 mm
F 9.15 in 232.41 mm
J 11.75 in 298.45 mm
K2 13.37 in 339.60 mm
M 1 in 25.40 mm
X 7/8 in 22.23 mm
T-Bolt Thread 3/4
T-Bolt Length 6 in 152.40 mm
T-Bolt/Nut Quantity 6
Approximate Unit Weight 13 lb 5.90 kg

Gasket Dimensions

MJ gasket engineering cross-section
MJ gasket engineering cross-section
Dimension Value Metric
Gasket D 8.85 in ±1% 224.79 mm

Kit Components

Component Material
Gland ASTM A536 Ductile Iron
Rubber Gasket SBR
T-Bolt 1045 Steel
Hex Nut 1045 Steel

Design and Installation References

Standard Description
ANSI/AWWA C153/A21.53 Ductile-Iron Compact Fittings for Water Service
ANSI/AWWA C111/A21.11 Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings
ANSI/AWWA C104/A21.4 Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water
ANSI/AWWA C116/A21.16 Protective Fusion-Bonded Epoxy Coatings for Interior/Exterior Surfaces of Ductile-Iron and Gray-Iron Fittings
ANSI/AWWA C600 Installation of Ductile-Iron Water Mains and Their Appurtenances

Finish

Component Finish
Ductile Iron Gland Fusion-Bonded Epoxy
T-Bolt Black
Hex Nut Black

Application

The Mechanical Joint Accessory Kit is designed for use in mechanical joint connections, including:

  • Ductile iron pipe and fittings
  • Mechanical joint valves and hydrants
  • HDPE mechanical joint adapter connections

SBR Gasket Quality Requirements

Property Test Standard Requirement
Shore A Hardness ASTM D2240 70–80
Tensile Strength ASTM D412 ≥10 MPa
Elongation ASTM D412 ≥150%
Aging Performance ASTM D572 ≥60%
Compression Set ASTM D395, Method B ≤20%
Resistance to Surface Ozone ASTM D1149 No Cracking

Design Simulation

Finite element simulation shows the stress distribution in the ductile iron gland under the modeled loading conditions.

Design simulation illustration
Design simulation illustration

Packing Details

Gland, gasket, T-bolts and nuts are packed together in a carton.

Available Options

CQ Brand Identification

CQ branded products are marked for product identification and traceability.

CQ brand identification example
CQ brand identification example

Quality Control

Representative quality-control and handling references:

  • Dimensional Inspection
  • EN 10204 3.1 Material Certificate
  • Appearance and Surface Inspection
  • Protective Packing
  • Product Photos Before Shipment
Dimensional inspection example
Dimensional inspection example
Backup ring section inspection example
Backup ring section inspection example

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