attachment tools for power-driven rodding machines for sewers

IS 11397 - Scope & Key Specifications Summary

Scope (Clause 0.3):
Defines the appropriate tool selection for sewer cleaning under various conditions.

Materials of Construction (Clause 3.1, Table 1)

Units and Symbols (International System of Units - SI)

Additional Notes

• ISI Marking (Clause 5.1.1): Tools may be ISI marked, ensuring compliance with quality and inspection standards.
• Rounding off results: Follow IS 2-1960 for rounding test values to the same significant figures as specified.

flowchart TD
    A[Select Sewer Cleaning Tool] --> B{Type of Blockage}
    B -->|Roots| C[Auger Root Cutter (Tempered Spring Steel)]
    B -->|Sand| D[Sand Borer (Chrome Vanadium Steel)]
    B -->|Hard Obstruction| E[Spear Point Borer (Manganese Steel)]
    B -->|Drilling

IS 11397: Types of Tools for Power Driven Rodding Machines

Key Tools & Materials (Clause 3.1, Table 1)

Notes:

• Tempered Spring Steel (Grade VW) is used for tools requiring flexibility and toughness (e.g., auger cutters).
• Chrome Vanadium Steel offers high strength and wear resistance, ideal for sand borers.
• Manganese Steel provides excellent impact resistance, suitable for spear and drill point borers.

Purpose:

• These tools cover all practical cases in sewer cleaning via power-driven rodding machines.

Quick Reference:

graph TD
    A[Power Driven Rodding Machine] --> B[Auger Type Root Cutter]
    A --> C[Sand Borer]
    A --> D[Spear Point Borer]
    A --> E[Drill Point Borer]

    B --> F[Tempered Spring Steel]
    C --> G[Chrome Vanadium Steel]
    D --> H[Manganese Steel]
    E --> H

Use the tool material suited to the obstruction type for durability and efficiency per IS 11397.

IS 11397 - Key Requirements Summary

1. Material of Construction (Clause 3.1, Table 1)

2. Marking (Clause 5.1.1)

• Tools may bear the ISI Certification Mark.
• ISI Mark ensures compliance with inspection, testing, and quality control per Indian Standards.

3. Rounding Off (Clause 0.4)

• Test results should be rounded as per IS:2-1960.
• Retain significant figures equal to those specified in the standard.

4. Units (SI Units)

• Length: metre (m)
• Mass: kilogram (kg)
• Time: second (s)
• Force: newton (N) = 1 kg·m/s²
• Pressure: pascal (Pa) = 1 N/m²

Notes:

• Material grades refer to specific IS 4454 parts for spring steel wires.
• The standard guides tool selection based on application conditions.

flowchart TD
    A[Tool Type] --> B[Material Selection]
    B --> C{IS Grade}
    C -->|Auger root cutter| D[Tempered spring steel (IS:4454 Pt2)]
    C -->|Sand borer| E[Chrome vanadium steel (IS:4454 Pt3)]
    C -->|Spear/Drill point borer| F[Manganese steel (IS:4454 Pt3)]
    A --> G[Marking]
    G --> H[ISI Certification Mark]
    A --> I[Testing & Rounding]
    I -->

IS 11397: Description of Specific Tools for Sewer Cleaning

Key Specifications & Materials (Clause 3.1, Table 1)

Material Standards Summary:

• Tempered spring steel: High elasticity and toughness, ideal for root cutters.
• Chrome vanadium steel: High strength and wear resistance for sand borers.
• Manganese steel: Excellent impact resistance for spear and drill point borers.

Marking (Clause 5.1.1)

• Tools should bear the ISI Certification Mark ensuring compliance with quality and inspection standards.

Units & Symbols (SI Units)

• Length: metre (m)
• Force: newton (N) = 1 kg·m/s²
• Pressure/Stress: pascal (Pa) = 1 N/m²

Summary Diagram: Tool-Material Relation

graph TD
    A[Tools] --> B[Auger Root Cutter]
    A --> C[Sand Borer]
    A --> D[Spear Point Borer]
    A --> E[Drill Point Borer]

    B --> F[Tempered Spring Steel (Grade VW)]
    C --> G[Chrome Vanadium Steel (Grade 1D)]
    D --> H[Manganese Steel (Grade 2D)]
    E --> H

This standard guides the selection of tool materials for sewer cleaning attachments ensuring durability and performance under specific conditions.

IS 11397 - Auger Type Root Cutter Summary

Description (Clause 3.2.4)

• Flat bladed, spiral tool for cutting fibrous roots.
• Acts like a spade when rotated; also cleans sand/silt blockages.
• Cutting edge on spiral protects sewer walls.
• Available sizes: 75, 100, 125, 150 mm diameter.
• Blade thickness options: 25 mm, 40 mm, 50 mm.

Material (Clause 3.1, Table 1)

Key Specifications

• Tempered spring steel ensures durability and flexibility.
• Spiral design prevents damage to sewer walls.
• Size selection depends on sewer diameter and blockage type.

Typical Use

• Root cutting in sewer lines.
• Removal of fibrous obstructions and silt deposits.

Visual Concept (Fig. 4)

graph LR
A[Power Driven Rodding Machine] --> B[Auger Type Root Cutter]
B --> C[Spiral Blade with Cutting Edge]
C --> D[Rotates to Cut Roots & Clean Blockages]

For detailed dimensions and manufacturing tolerances, refer to IS 11397 Fig. 4 and related clauses.

IS 11397 - Sand Borer: Key Specifications & Details

1. Purpose (Clause 3.2.5)

• Designed to bore quickly through heavy sand deposits in sewers.
• Spirals arranged to lift sand upwards, facilitating removal.

2. Typical Features (Fig. 5)

• Spiral cutting edges.
• Special arrangement for efficient sand displacement.

3. Related Borers (for comparison)

4. Usage Notes

• Sand borer is ideal for soft, granular deposits.
• The spiral design helps prevent clogging by moving sand upwards.

flowchart LR
    A[Sand Deposit] --> B[Sand Borer]
    B --> C[Spiral Cutting Edges]
    C --> D[Lifts Sand Upwards]
    D --> E[Cleared Sewer Pipe]

Summary: Use the sand borer when dealing with heavy sand deposits; its spiral design ensures efficient boring and sand removal. For harder blockages, consider spear point or drill point borers.

IS 11397 - Spear Point Borer Key Details

• Purpose: Breaks bottles, knocks holes in cans/bricks; effective in small pipes with hard deposits.
• Material: Manganese steel head for high durability and impact resistance.
• Size: Standard size is 50 mm diameter.
• Design: Pointed tip for penetration; used with power-driven rodding machines.

Specification Summary (Clause 3.2.6)

Usage Notes:

• Ideal for localized hard blockages.
• Used in conjunction with power-driven rodding machines (Clause 2.1).
• Not designed for sandy or very abrasive deposits (use Sand Borer instead).

flowchart LR
    A[Power Driven Rodding Machine] --> B[Spear Point Borer (50 mm)]
    B --> C{Hard Deposits?}
    C -->|Yes| D[Breaks bottles, cans, bricks]
    C -->|No| E[Use other tools (e.g., Sand Borer)]

For other hard blockages, consider Drill Point Borer (45-60 mm) or Sand Borer for sand deposits.

Drill Point Borer (IS 11397)

• Description:
  Four radial, hard-faced, sharpened cutting edges for breaking extremely hard blockages.

• Sizes Available:

  • 45 mm
  • 50 mm
  • 60 mm

• Application:
  Ideal for very hard blockages where other borers may fail.

Key Specifications (from Clause 3.2.7)

Typical Sketch (Fig. 7)

graph TD
    A[Drill Point Borer] --> B[4 Radial Cutting Edges]
    A --> C[Hard-faced, Sharpened]
    A --> D[Diameter: 45/50/60 mm]

Usage Tips:

• Use with power-driven rodding machines (Clause 2.1).
• Best for extremely hard blockages.
• Ensure proper size selection matching pipe diameter and blockage hardness.

For detailed dimensions and manufacturing tolerances, refer to IS 11397 Fig. 7 and related annexures.

IS 11397 - Finish Specifications for Sewer Cleaning Tools

• Clause 3.3 Finish:

  • Tools must have a smooth finish.
  • No sharp edges allowed to ensure safety and performance.
  • Tools should be treated to prevent corrosion (e.g., surface coating, plating).

• Material Specifications (Table 1, Clause 3.1):

  Tool Type	Material	IS Reference
  Auger type root cutter	Tempered spring steel	Grade VW, IS:4454 (Part 2)-1975
  Sand borer	Chrome vanadium steel	Grade 1D, IS:4454 (Part 3)-1975
  Spear point borer	Manganese steel	Grade 2D, IS:4454 (Part 3)-1975
  Drill point borer	Manganese steel	Grade 2D, IS:4454 (Part 3)-1975

• Rounding off results (Clause 0.4):

  • Follow IS 2-1960 for rounding test/analysis values to match specified significant figures.

• Marking (Clause 5.1.1):

  • Tools may bear the ISI Certification Mark confirming compliance and quality control.

Summary Diagram of Finish Requirements

graph TD
    A[Tool Surface] --> B[Smooth Finish]
    A --> C[No Sharp Edges]
    A --> D[Corrosion Treatment]
    B --> E[Safety & Performance]
    C --> E
    D --> E

Key takeaway: Ensure tools are smooth, safe, corrosion-resistant, and made from specified steel grades per IS 11397.

IS 11397: Quality and Defect Criteria Summary

Clause 4.1: Quality Requirements

• Tools must be free from defects and blemishes that affect appearance or impair serviceability.
• Visual and functional integrity is mandatory for usability.

Rounding Off Test Results (Clause 0.4)

• Follow IS 2-1960 for rounding off test values.
• Retain the same number of significant digits as specified in the standard.

Marking (Clause 5.1.1)

• Tools may carry the ISI Certification Mark, ensuring compliance with IS standards.
• ISI mark implies ongoing inspection and quality control.

Key Specifications & Notes

Important Units (SI Units per IS 11397)

flowchart TD
    A[Tool Manufacturing] --> B[Visual Inspection]
    B -->|No defects| C[Serviceability Confirmed]
    B -->|Defects found| D[Reject or Rework]
    C --> E[Marking with ISI Certification (Optional)]
    E --> F[Distribution]

Summary: Ensure tools are defect-free per Clause 4.1, test results rounded as per IS 2-1960, and optionally marked with ISI for quality assurance.

IS 11397 - Marking Specifications (Clause 5.1.1 & 5.1)

Key Marking Requirements for Tools:

• Each tool shall be legibly and indelibly marked with:
  • Name of manufacturer or trademark
  • Year of manufacture
• Tools may also bear the ISI Certification Mark as per the Indian Standards Institution (Certification Marks) Act.

ISI Certification Mark

• Indicates compliance with IS standards.
• Ensures production under a defined system of inspection, testing, and quality control.
• ISI continuously checks products for conformity.

Material Reference for Tools (Table 1, Clause 3.1)

Rounding Off (Clause 0.4)

• Final test values must be rounded as per IS:2-1960.
• Retain significant places equal to those specified in the standard.

Summary Table: Marking Details

flowchart TD
    A[Tool] --> B[Mark Manufacturer Name]
    A --> C[Mark Year of Manufacture]
    A --> D[Optional: ISI Certification Mark]
    D --> E[Compliance with IS Standards]
    E --> F[Quality Control & Continuous Inspection]

This concise marking protocol ensures traceability, quality assurance, and compliance with IS standards for sewer cleaning tools.