Specification for Hydrant Stand-Pipe for Fire Fighting
1981 Edition

Overview of IS 5714 Scope and Specifications

Scope:
This standard defines the requirements for hydrant stand-pipes used in firefighting, covering types, materials, dimensions, testing procedures, and marking protocols.

Essential Specifications & Calculations

• Stand-pipe Types (Section 4.1):

  • Type A: Single outlet
  • Type B: Double outlet (with handle diameter 100 mm and thickness 5 mm)

• Hydrostatic Pressure Test (Section 6.1):

  • Test pressure: 2.1 MN/m² (21 kgf/cm²)
  • Duration: 2.5 minutes
  • Objective: Identify porosity and leakage

• Material Standards:

  • Chain: Galvanized steel wire as per IS 280
  • Outlets: 63 mm female instantaneous outlets conforming to IS 5290-1977
  • Threading: According to IS 2643 (Part 1) - 1975

• Marking (Section 7.1.1):

  • Application of ISI Certification Mark is regulated per ISI guidelines to confirm compliance and quality.

International System of Units (SI) Employed:

Conceptual Diagram of Hydrostatic Test Setup

flowchart LR
    A[Complete Stand-pipe Assembly] --> B[Installation of Blank Caps]
    B --> C[Application of 2.1 MN/m² Hydrostatic Pressure]
    C --> D[Maintain Pressure for 2.5 Minutes]
    D --> E{Inspection for Leakage or Porosity}
    E -- Pass --> F[Approval Granted]
    E -- Fail --> G[Rejection or Repair Required]

Note: For detailed dimensional data and tolerances, consult Figures 1 and 2 of IS 5714.

Summary of Stand-Pipe Components per IS 5714

Constituent Parts (Section 2.1)

• Main shaft with associated fittings
• Head assembly including a bend
• Instantaneous female outlet(s) equipped with blank caps

Classification of Stand-Pipes (Section 4.1)

• Type A: Single outlet
• Type B: Double outlet

Dimensional Standards and Allowances (Section 4.2)

• Dimensions as depicted in Figures 1 and 2 of IS 5714
• Tolerances to be followed as per IS 2102-1969 except where otherwise specified
• All measurements in millimeters

Threading and Fitting Details

• Threads in accordance with IS 2643 (Part 1) - 1975
• Round thread profiles based on IS 909-1975
• Female instantaneous outlets (63 mm) per IS 5290-1977
• Outlet orientation options: horizontal or inclined at 30°
• Jointing methods: bolted or screwed connections permitted

Stand-Pipe Base Details

• Base dimensions as illustrated in Figure 2 of IS 5714

Additional Notes:

• Outlets may be configured as single or double
• Alternative jointing options allowed
• ISI mark application subject to certification regulations (Section 7.1.1)

Typical Assembly Diagram (Mermaid.js)

graph TD
    A[Stand-Pipe Assembly] --> B[Shaft with Fittings]
    A --> C[Head (with Bend)]
    A --> D[Instantaneous Female Outlet(s)]
    D --> E[Blank Cap(s)]
    D --> F[Single or Double Outlet Configuration]

**Refer to Figures 1 and 2 of IS 5714 for detailed dimensions. Threading and outlet standards ensure firefighting compatibility and reliability.

Key Material Specifications in IS 5714

• Aluminium Alloy Castings (Section 3.2)
  Must comply with IS 617-1975 (Designation 4 450) for cast and forged components.

• Aluminium Pipes (Section 3.4)
  Aluminium pipes used for stand-pipe shafts must conform to IS 737-1974.

• Leather Components (Section 3.5.2)
  Leather materials should meet IS 581-1976 standards.

• Hydrostatic Pressure Testing (Section 6.1)

  • Test pressure: 2.1 MN/m² (21 kgf/cm²)
  • Duration: 2.5 minutes
  • Purpose: Ensure absence of porosity and leakage in castings and joints.

Material Reference Table:

Hydrostatic Test Procedure (Simplified):

flowchart LR
    A[Assembled Component] --> B[Blank Caps Mounted]
    B --> C[Apply 2.1 MN/m² Pressure]
    C --> D[Maintain for 2.5 Minutes]
    D --> E{Check for Leakage or Porosity}
    E -- No --> F[Pass]
    E -- Yes --> G[Reject or Repair]

This testing guarantees material integrity and leak-tightness in compliance with IS 5714.

Classification and Dimensional Details of Stand-Pipes per IS 5714

Types (Section 4.1)

• Type A: Single outlet stand-pipe (see Figure 1)
• Type B: Double outlet stand-pipe (see Figure 1)
• Outlets can be positioned at either 0° or 30° from the horizontal plane.
• Outlet configuration may be single or double.
• Jointing options include bolted or screwed connections.

Dimensions (Section 4.2)

• Dimensions are specified in Figures 1 and 2 (all in millimeters).
• Tolerances adhere to IS 2102-1969 unless otherwise stated.
• Base dimensions detailed in Figure 2.
• Handle size for double outlet types: 100 mm diameter with 5 mm thickness (refer to footnote IV).

Threading Standards

• Threading as per IS 2643 (Part 1) - 1975 (general) and IS 909-1975 (round threads).
• Outlets: 63 mm female instantaneous outlets with blank caps according to IS 5290-1977.

Materials and Accessories

• Leather seals conform to IS 581-1961.
• Chains made from galvanized steel wire following IS 280.

Typical Dimension Summary Table

graph TD
    A[Stand-Pipe Types] --> B[Type A: Single Outlet]
    A --> C[Type B: Double Outlet]
    C --> D[Handle: 100 mm diameter, 5 mm thickness]
    B & C --> E[Outlet Angle: 0° or 30°]
    E --> F[Threading per IS 2643 / IS 909]
    F --> G[63 mm Female Instantaneous Outlet]

For exact measurements, refer to Figures 1 and 2 of IS 5714.

IS 5714: Fabrication and Workmanship Essentials

1. Materials and Components:

• Chains: Required to be galvanized steel wire meeting IS 280 (Section 3.6).
• Leather Components: Must adhere to IS 581-1976 (Section 3.5.2).
• Handle Dimensions for Double Outlet: Diameter of 100 mm and thickness of 5 mm (Figure 1, footnote IV).

2. Hydrostatic Pressure Testing (Section 6.1):

• Test pressure set at 2.1 MN/m² (21 kgf/cm²).
• Duration of test: 2.5 minutes.
• Purpose: Identify any porosity or leakage within castings, joints, or outlets.

3. Marking (Section 7.1.1):

• Stand-pipes may bear the ISI Certification Mark, signifying adherence to IS standards and quality monitoring.

Specifications Overview

Conceptual Hydrostatic Test Flow

flowchart LR
    A[Standpipe Assembly] --> B[Blank Caps Positioned]
    B --> C[Apply 2.1 MN/m² Hydrostatic Pressure]
    C --> D[Maintain Pressure for 2.5 Minutes]
    D --> E[Inspect for Porosity and Leakage]

These requirements ensure the long-term reliability and durability of hydrant stand-pipes in accordance with IS 5714.

Summary of Performance Requirements in IS 5714

1. Hydrostatic Pressure Test (Section 6.1)

• Pressure: 2.1 MN/m² (21 kgf/cm²)
• Duration: 2.5 minutes
• Objective: Detect any porosity or leakage in castings and joints.
• Condition: Blank caps must be fitted during the test.

2. Flow Test (Section 6.2)

• Minimum Flow Rate: 900 litres per minute per outlet
• Test Pressure: 0.7 MN/m² (7 kgf/cm²)
• Method: Flow measured using flow meters or V-notch apparatus.
• Requirement: Mandatory type test for the assembled unit.

Reference SI Units (IS 5714)

Quick Reference Table

flowchart LR
    A[Assembled Stand-pipe] --> B[Hydrostatic Pressure Test]
    B -->|2.1 MN/m², 2.5 min| C{Pass Result?}
    C -->|Yes| D[Proceed to Flow Test]
    C -->|No| E[Reject or Repair]
    D -->|≥900 L/min at 0.7 MN/m²| F[Pass]
    D -->|<900 L/min| E

Note: Ensure stand-pipes are marked with ISI certification per Section 7.1.1 to guarantee quality assurance.

Marking Requirements According to IS 5714 (Section 7.1.1)

• Hydrant stand-pipes may bear the ISI Certification Mark, indicating conformity to the applicable standards under ISI's inspection and quality control.
• The use of the ISI mark is regulated by the Indian Standards Institution (Certification Marks) Act.
• The ISI mark confirms:
  • Manufacturing in accordance with IS 5714 specifications.
  • Continuous surveillance by ISI to maintain conformity.
• Manufacturers must obtain an ISI license to use this mark legitimately.

Summary of Marking Specifications

Reference SI Units

Hydrostatic Pressure Testing Formula

[ P = 2.1 \text{ MN/m}^2 = 21 \text{ kgf/cm}^2 ]

Test duration: 2.5 minutes with blank caps installed.

flowchart TD
    A[Stand-pipe] --> B[Marking Process]
    B --> C{ISI Certification Mark Present?}
    C -->|Yes| D[License Required from ISI]
    C -->|No| E[No ISI Mark Applied]
    D --> F[Assures Compliance with IS 5714]
    F --> G[Ongoing ISI Monitoring]

For detailed marking procedures and licensing, contact the Indian Standards Institution.

Overview of Testing Procedures per IS 5714

1. Hydrostatic Pressure Test (Section 6.1)

• Pressure: 2.1 MN/m² (21 kgf/cm²)
• Duration: 2.5 minutes
• Goal: Detect any porosity or leaks in casting and joints.
• Condition: Blank caps must be fitted during the test.

2. Flow Test (Section 6.2)

• Minimum Flow Rate: 900 litres per minute
• Test Pressure: 0.7 MN/m² (7 kgf/cm²)
• Measurement Method: Flow meter or V-notch flow measurement.
• Requirement: Mandatory type test for each outlet.

Summary Table

Additional Notes:

• Marking (Section 7.1.1): ISI Certification Mark may be present on stand-pipes following ISI regulations.
• SI units (Pascal, Newton, meter, etc.) are used in accordance with IS 5714.

flowchart TD
    A[Complete Assembly] --> B[Hydrostatic Pressure Test]
    B -->|2.1 MN/m² for 2.5 min| C{Leakage Detected?}
    C -->|No| D[Flow Test]
    C -->|Yes| E[Reject or Repair]
    D -->|Flow ≥ 900 L/min at 0.7 MN/m²| F[Pass]
    D -->|Flow < 900 L/min| E

This concise testing overview ensures compliance with IS 5714 requirements for hydrant stand-pipe performance.