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Hydraulically Regulated Door Closers -Specification

IS 3564:1995 specifies requirements for exposed type hydraulically regulated door closers designed for vertical hinge doors opening to one side and weighing up to 80 kg. It covers construction, materials, performance, testing, and packaging to ensure reliable automatic door closing with hydraulic speed regulation. This standard is essential for manufacturers, suppliers, and engineers involved in the design, selection, and quality assurance of hydraulic door closers used in residential, commercial, and public buildings.

15Sections
69Clauses Indexed
AI Search Ready
1995Edition
Builder HardwareCategory
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What This Standard Covers

IS 3564:1995 specifies requirements for exposed type hydraulically regulated door closers designed for vertical hinge doors opening to one side and weighing up to 80 kg. It covers construction, materials, performance, testing, and packaging to ensure reliable automatic door closing with hydraulic speed regulation. This standard is essential for manufacturers, suppliers, and engineers involved in the design, selection, and quality assurance of hydraulic door closers used in residential, commercial, and public buildings.

Who Uses This Standard

  • Mechanical Engineers
  • Building Hardware Manufacturers
  • Quality Control Inspectors
  • Architects and Building Designers
  • Facility Managers
  • Procurement Specialists
  • Civil Engineers

Key Topics Covered

Scope and application of hydraulically regulated door closers
Designations based on door mass and width
Materials for component parts
Construction and finish requirements
Hydraulic speed regulation and control valve adjustment
Performance testing at varied temperatures
Endurance testing procedures
Sampling and conformity criteria
Packaging and labeling standards
Installation accessories and instructions
Types of door closers (bottle and tubular)
Definitions of door opening directions
Surface treatment and corrosion protection
Interchangeability of parts
Use of Standard Mark and licensing

Table of Contents

1Scope

IS 3564: Scope & Key Specifications Summary

Scope (Clause 3.0)

  • Defines terms and applicability for door closers.
  • Covers construction, finish, dimensions, interchangeability, and performance tests (Clause 14.3.1).

Sampling & Conformity (Clause 14.2.1 & Table 14.3.2)

  • Sample sizes and acceptance criteria depend on lot size.
  • Two-stage sampling with acceptance/rejection numbers.
Lot Size (No. of Door Closers)First Sample SizeAcceptance No.Rejection No.Second Sample SizeAcceptance No.Rejection No.
Up to 50802812
51 to 9013021312
91 to 15020032034
151 to 28032143245
281 to 50050255067
501 to 1,20080378089
1,201 to 3,200125591251213
3,201 and above2007112001819

Rounding Off (IS 2:1960)

  • Final test values rounded as per IS 2 rules.
  • Number of significant digits same as specified values.

Referenced Standards (Annex A)

  • Covers materials like phosphor bronze (IS 28), carbon steel (IS 1875), aluminium alloys (IS 617), and testing methods (IS 7283).
  • Ensures quality and
2Referenced Indian Standards

IS 3564: Referenced Indian Standards & Key Specifications

  • Rounding Off: Final test or analysis values must be rounded per IS 2:1960 rules, maintaining the same significant figures as specified.

  • Endurance Test (Clause 1.5, Table B-1.5):

    • Total operations: 50,000 cycles
    • Continuous operations per batch: 2,500 to 3,000
    • Operation rate: 4 to 6 cycles/minute
    • One operation = one full opening + closing
    • Post-test: No defects, failures, or oil leakage allowed
  • Committee & Development: Developed by Builders Hardware Sectional Committee (CED 15) under BIS, reaffirmed in 2002.

  • Contact for BIS Offices: Multiple regional offices available (New Delhi, Calcutta, Chennai, Bombay, Chandigarh).


Summary Table: Endurance Test Parameters

ParameterValue
Total operations50,000
Continuous operations2,500 to 3,000
Operation speed4 to 6 per minute
Test criteriaNo defects or leakage

For detailed design, testing, and material specs, refer to the full IS 3564 document and related standards like IS 2:1960 for rounding rules.

flowchart LR
    A[Test Piece] --> B[Closer fitted]
    B --> C[Operate 50,000 cycles]
    C --> D{Check defects?}
    D -->|No| E[Pass Test]
    D -->|Yes| F[Fail Test]
3Definitions

IS 3564 - Definitions & Key Specifications Summary

1. Definitions (Clause 3.0)

  • Defines terms related to hydraulic door closers for clarity and uniformity.
  • Final test/analysis values must be rounded as per IS 2:1960 rules, maintaining the same significant figures as specified.

2. Designation of Door Closers (Table 1, Clause 6)

DesignationDoor Mass (kg)Door Width (mm)Typical Use
1Up to 35Up to 700Light doors (toilet, double-leaf)
236 to 60701 to 850Interior doors (bedrooms, kitchen)
361 to 80851 to 1000Main entrance doors

3. Materials for Components (Table 2, Clause 7)

ComponentSuitable MaterialIS Reference
Body & Back PlateCast iron, Aluminium alloy, Zinc alloyIS 210, 617, 742
Torsion SpringSteelIS 4454 (Pt 2), 2507
NutsCast iron, Steel, BrassIS 210, 7283, 292
Hydraulic OilHigh viscosity hydraulic oilIS 3098
Control Valve ScrewBrass, Bronze, Aluminium alloy, SteelIS 292, 28, 617
Main Arm & Adjusting ArmAluminium alloy, Steel, Forged steelIS 617, 7283, 742, 1875

4. Rounding Off (Clause None)

  • Use IS 2:1960 for rounding test results.
  • Retain significant figures equal to the standard's specified value.

Visual: Door Closer Designation Flow

flowchart TD
    A[Door Mass & Width] --> B{Designation}
    B -->|Up to 35 kg & ≤700 mm| C[Type 1: Light Doors]
    B -->|36 to 60 kg & 701-850 mm| D[Type 2
4Designation of Door Closers

IS 3564 - Designation of Door Closers

1. Designation Table (Clause 6 - Table 1)

DesignationMass of Door (kg)Width of Door (mm)Remarks
1Up to 35Up to 700Light doors (double-leaved, toilets)
236 to 60701 to 850Interior doors (bedrooms, kitchen, store)
361 to 80851 to 1000Main entrance doors

2. Materials for Components (Clause 7 - Table 2)

Component PartSuitable MaterialIS Reference No.
Body and back plateCast iron / Aluminium alloy / Zinc alloyIS 210:1978 / 617:1975 / 742:1981
Torsion springSteelIS 4454 (Part 2):1975 / 2507:1975
Control valve screwBrass / Bronze / Aluminium alloy / Steel / ZincIS 292:1983 / 28:1985 / 617:1975 / 2062:1992 / 742:1981
Hydraulic oilHigh viscosity hydraulic oilIS 3098:1983
OthersRefer Table 2 for specific parts

3. Universal Closer (Clause 3.6)

  • Suitable for both clockwise and anti-clockwise doors without part changes.

4. Types of Hydraulic Door Closers (Clause 3.6)

  • Bottle type (Type A)
  • Tubular type (Type B)

Summary Diagram of Door Closer Designation

flowchart TD
    A[Door Mass & Width] --> B{Designation}
    B -->|Mass ≤ 35kg & Width ≤ 700mm| C[Designation 1: Light Doors]
    B -->|36kg ≤ Mass ≤ 60kg & 701mm ≤ Width ≤ 850mm| D[Designation 2: Interior Doors]
    B -->|61kg ≤ Mass ≤ 80kg & 851
5Materials

IS 3564 - Materials for Hydraulically Regulated Door Closers

Key Table: Materials for Components (Clause 7, Table 2)

Component PartSuitable MaterialIS Reference No.
Non-porous body & back plateCast iron / Aluminium alloy / Zinc alloyIS 210:1978 / 617:1975 / 742:1981
Torsion/helical springSteelIS 4454 (Part 2):1975 / 2507:1975
NutsCast iron / Steel / BrassIS 210:1978 / 7283:1992 / 292:1983
Piston or Rack-piston/pinionCast iron / Steel / Aluminium alloy / Zinc alloyIS 210:1978 / 7283:1992 / 617:1975 / 742:1981
Packing/washersCork sheet / Nylon / Neoprene rubberIS 4253 (Part 1):1980
Control valve screwBrass / Bronze / Aluminium alloy / Steel / Zinc alloyIS 292:1983 / 28:1985 / 617:1975 / 2062 (Grade A):1992 / 742:1981
Hydraulic oilAll-weather resistant, high viscosity hydraulic oilIS 3098:1983
Adjusting/Main armAluminium alloy / Steel / Zinc alloy / Forged steelIS 617:1975 / 7283:1992 / 742:1981 / 1875:1992
ClampCast iron / Steel / Forged steelIS 210:1978 / 7283:1992 / 1875:1992
Concentric ratchet (bottle type)Steel / Aluminium alloy / Zinc alloyIS 7283:1992 / 617:1975 / 742:1981
Eccentric shaftSteelIS 7283:1992
Internal bearing and glandCast iron / Brass / Steel + mineral oil resistant washerIS 210:1978 / 292:1983 / 7283:1992
Main arm bolt
6Construction and Finish

IS 3564: Construction and Finish Key Points

1. Construction & Finish (Clause 14.3.1)

  • Focus on dimensions, interchangeability of parts, and performance tests.
  • Nut/top lid must be firmly fixed yet removable for maintenance (Clause 8.6).

2. Sampling & Conformity (Table 3, Clause 14.2.1)

Lot Size (No. of Door Closers)Sample Size (First/Second)Acceptance Number (First/Second)Rejection Number (First/Second)
Up to 508 / 80 / 12 / 2
51 to 9013 / 130 / 12 / 2
91 to 15020 / 200 / 33 / 4
151 to 28032 / 321 / 44 / 5
281 to 50050 / 502 / 65 / 7
501 to 120080 / 803 / 87 / 9
1201 to 3200125 / 1255 / 129 / 13
3201 and above200 / 2007 / 1811 / 19

3. Materials for Components (Table 2, Clause 7)

ComponentSuitable Material(s)IS Reference No.
Body & Back PlateCast iron, Aluminium alloy, Zinc alloyIS 210:1978, 617:1975, 742:1981
Torsion SpringSteelIS 4454 (Part 2):1975, 2507:1975
NutsCast iron, Steel, BrassIS 210:1978, 7283
7Performance Requirements

IS 3564: Performance Requirements Summary

Key Clauses:

  • 14.3.1: Covers construction, finish, dimensions, interchangeability, and performance tests.
  • 8.2 & B-1.4: Performance tests must be checked within 15 minutes after conditioning. No defects or oil leakage allowed.
  • 14.2.1 & Table 3: Sampling plan for conformity testing based on lot size.

Sampling & Acceptance Criteria (Table 3 excerpt):

Lot Size (No. of Door Closers)Sample Size (First)Acceptance No. (First)Rejection No. (First)
Up to 50802
51 to 901302
91 to 1502003
151 to 2803214
281 to 5005025
501 to 1,2008037
1,201 to 3,20012559
Above 3,201200711

Second sample sizes and acceptance numbers increase accordingly.


Performance Test Requirements:

  • No leakage or defects after testing.
  • Tests include endurance and functional performance as per Clauses 14.2.1 and 14.3.1.
  • Conditioning period: 15 minutes before checking results.

Referenced Standards (Annex A):

  • Material standards for metals, coatings, and oils (e.g., IS 28, IS 3618, IS 2062).
  • Sampling methods (IS 7283).
  • Paint and corrosion protection standards.

Summary Flow of Performance Testing:

flowchart TD
    A[Receive Door Closers Lot] --> B[Sample as per Table 3]
    B --> C[Condition Samples (15 min)]
    C --> D[Conduct Performance Tests]
    D --> E{Defects or Leakage?}
    E
8Testing Procedures

IS 3564 - Testing Procedures Summary

Sample Size & Acceptance Criteria (Clause 14.2.1, Table 14.3.2)

Lot Size (No. of Door Closers)Sample Size (First/Second)Cumulative Sample SizeAcceptance NumberRejection Number
Up to 508 / 88 / 160 / 12 / 2
51 to 9013 / 1313 / 260 / 12 / 2
91 to 15020 / 2020 / 400 / 33 / 4
151 to 28032 / 3232 / 641 / 44 / 5
281 to 50050 / 5050 / 1002 / 65 / 7
501 to 1,20080 / 8080 / 1603 / 87 / 9
1,201 to 3,200125 / 125125 / 2505 / 129 / 13
3,201 and above200 / 200200 / 4007 / 1811 / 19
  • Acceptance Number: Max allowable defects for acceptance.
  • Rejection Number: Min defects leading to rejection.

Key Notes:

  • Final test results must be rounded per IS 2:1960 rules.
  • Tests cover Construction, Finish, Dimensions, Interchangeability, and Performance.
  • Sampling follows random sampling methods (see IS 7283:1992).

Referenced IS Standards (Annex A):

  • IS 4905:1968 - Random Sampling
  • IS 2062:1992 - Steel for structural purposes
  • IS 3618:
9Surface Treatment

IS 3564 Surface Treatment Key Points

  • Clause 9.2: Mild steel parts must be treated as per 9.2.1 & 9.2.2.

  • Clause 9.2.1:

    • Remove dents, burrs, sharp edges.
    • Pickle, scrub, rinse to remove grease, rust, scale, foreign elements.
  • Clause 9.2.2:

    • After pickling, apply phosphating treatment as per IS 3618:1966 for corrosion protection.
  • Filler Application:

    • Use fillers conforming to IS 110:1983 on surfaces needing filling.

Summary Table: Surface Treatment Process

StepDescriptionReference
1. Surface CleaningRemove dents, burrs; pickle & rinseClause 9.2.1
2. PhosphatingApply phosphate coatingIS 3618:1966
3. FillingApply filler on required surfacesIS 110:1983

Additional Notes:

  • Phosphating enhances corrosion resistance and paint adhesion.
  • Pickling typically involves acid treatment to clean steel surfaces.
  • Ensure ambient temperature testing as per Annex B for performance validation.
flowchart TD
    A[Mild Steel Parts] --> B[Remove dents, burrs, sharp edges]
    B --> C[Pickle, scrub, rinse]
    C --> D[Phosphating Treatment (IS 3618)]
    D --> E[Filler Application (IS 110)]
    E --> F[Ready for Assembly/Coating]

This ensures durable, corrosion-resistant steel components in door closers per IS 3564.

10Packaging and Marking

IS 3564: Packaging and Marking - Key Points

The standard IS 3564 (1995) primarily covers packaging and marking of mechanical closers, focusing on:

  • Visual Inspection (Clause 1.2): Packaging must conform to the requirements specified in Clause 12 (not detailed here), ensuring protection against damage and corrosion during transit and storage.

  • Rounding Off (General Clause): Test results must be rounded per IS 2:1960, maintaining the same significant digits as the specified values.

  • Construction & Dimensions (Clause 14.3.1): Packaging should preserve the integrity of construction, finish, and interchangeability of parts.


Typical Packaging & Marking Specifications (Based on IS 3564 and general practice):

ParameterSpecification
Packing MaterialCorrugated boxes, wooden crates, or metal cases
ProtectionAnti-corrosive coatings, moisture-proof wrapping
Marking DetailsManufacturer name, batch no., size, date of manufacture
InspectionVisual inspection for damage, completeness, and labeling

Rounding Off Rule (IS 2:1960):

  • If the digit to be dropped is >5, round up.
  • If the digit is <5, round down.
  • If the digit is 5, round to make the last digit even.

flowchart LR
    A[Manufacturing] --> B[Packaging as per IS 3564]
    B --> C[Visual Inspection (Clause 1.2)]
    C --> D[Marking & Labeling]
    D --> E[Storage & Dispatch]

For detailed packaging dimensions and marking formats, refer to Clause 12 of IS 3564 and related annexures.

11Accessories and Instructions

IS 3564: Accessories and Instructions for Door Closers

Clause 12.2 mandates each door closer be supplied with:

  • A list of accessories (see Clause 13)
  • A leaflet with installation, use, and maintenance instructions
  • One fitting key or suitable spanner for adjusting spring valve and regulating screw

Key Accessories (Typical for Hydraulic Bottle Type Door Closers)

  • Top Nut Adjusting Arm
  • Concentric Ratchet
  • Control Valve Screw
  • Fitting Key/Spanner

Material Specifications (Table 2, Clause 7)

Component PartSuitable MaterialIS Reference No.
Non-porous body & back plateCast iron / Aluminium alloy / Zinc alloyIS 210, 617, 742
Torsion/helical springSteelIS 4454 (Part 2), 2507
NutsCast iron / Steel / BrassIS 210, 7283, 292
Control valve screwBrass / Bronze / Aluminium alloy / SteelIS 292, 28, 617, 2062
Hydraulic oilHigh viscosity, weather resistant hydraulic oilIS 3098
Main arm, Adjusting armAluminium alloy / Steel / Zinc alloy / Forged steelIS 617, 7283, 742, 1875

Sampling & Conformity (Table 3, Clause 14.2.1)

Lot SizeSample Size (First)Acceptance NumberRejection Number
Up to 50802
51 to 901302
91 to 1502003
151 to 2803214
281 to 5005025
501 to 12008037
1201 to
12Sampling and Criteria for Conformity

IS 3564 - Sampling and Criteria for Conformity (Clause 14.3, Table 3)

Sampling Procedure:

  • Test samples are drawn based on the lot size.
  • Two samples may be drawn sequentially if needed.
  • Each door closer failing in construction, finish, dimensions, interchangeability, or performance is defective.

Key Table: Sample Size & Acceptance Criteria

Lot Size (No. of Door Closers)Sample Size (Each)Cumulative Sample SizeAcceptance NumberRejection Number
Up to 5088 / 160 / 12 / 2
51 to 901313 / 260 / 12 / 2
91 to 1502020 / 400 / 33 / 4
151 to 2803232 / 641 / 44 / 5
281 to 5005050 / 1002 / 65 / 7
501 to 12008080 / 1603 / 87 / 9
1201 to 3200125125 / 2505 / 129 / 13
Above 3200200200 / 4007 / 1811 / 19

Decision Rules:

  • If defectives ≤ Acceptance Number → Lot conforms.
  • If defectives ≥ Rejection Number → Lot rejected.
  • If Acceptance Number < defectives < Rejection Number → Take second sample.
  • Combine defectives from both samples; if combined defectives ≤ Acceptance Number → Lot conforms.

Additional:

  • Final test results rounded per IS 2:1960 rules.
  • Refer to Annex B for detailed test descriptions.

flowchart TD
13Endurance Test

IS 3564 - Endurance Test Key Points

Endurance Test (Clause 14.3.2)

  • Sample Size: For lot size ≤ 280, test 2 door closers.
  • Performance Check: After endurance test, check performance as per Clause 8.2 within 15 minutes.
  • Acceptance Criteria: No defects or oil leakage allowed at test end.

Sampling & Acceptance (Table 14.3.2 from Clause 14.2.1)

Lot Size RangeSample Size (First)Acceptance NumberRejection Number
Up to 50802
51 to 901302
91 to 1502003
151 to 2803214
281 to 5005025
501 to 12008037
1201 to 320012559
3201 and above200711
  • Second sample size doubles the first; acceptance and rejection numbers increase accordingly.

Summary

  • Endurance test ensures durability without oil leakage or defects.
  • Sample sizes and acceptance criteria depend on lot size.
  • Performance must meet Clause 8.2 immediately post-test.

flowchart LR
    A[Start Endurance Test] --> B{Lot Size ≤ 280?}
    B -- Yes --> C[Test 2 Door Closers]
    B -- No --> D[Refer to Sampling Table 14.3.2]
    C --> E[Check Performance (Clause 8.2)]
    D --> E
    E --> F{Defects or Leakage?}
    F -- No --> G[Accept Lot]
    F -- Yes --> H[Reject Lot]

For detailed sampling and acceptance, refer to Table 14.3.2 in IS 3564.

14Use of Standard Mark

Use of Standard Mark - IS 3564 Key Points & Table

Clause 11.2.1

  • Use of the Standard Mark is regulated by the Bureau of Indian Standards (BIS) Act 1986.
  • Licence conditions for use of the Standard Mark are provided by BIS.

Clause 11.2

  • Each door closer may be marked with the Standard Mark to indicate conformity.

Sampling & Acceptance Criteria (Clause 14.2.1)

Lot Size (No. of Door Closers)Sample Size (First & Second)Cumulative Sample SizeAcceptance NumberRejection Number
Up to 508, 88, 160, 12, 2
51 to 9013, 1313, 260, 12, 2
91 to 15020, 2020, 400, 33, 4
151 to 28032, 3232, 641, 44, 5
281 to 50050, 5050, 1002, 65, 7
501 to 120080, 8080, 1603, 87, 9
1201 to 3200125, 125125, 2505, 129, 13
3201 and above200, 200200, 4007, 1811, 19
  • Acceptance Number: Max number of defective samples allowed to accept the lot.
  • Rejection Number: Min number of defective samples to reject the lot.

Rounding Off (IS 2:1960)

  • Final test values must be rounded off as per IS
15Annexes and Committee Composition

Here is a concise summary of key formulas, tables, and specifications from IS 3564 related to Annexes and Committee Composition:


1. Committee Composition (Annex C)

  • The technical committee (CED 15) includes experts from:
    • Central Public Works Department, Railways, Defence, Industry, BIS, Research Institutes.
    • Members represent government departments, private enterprises, and standards organizations.
  • Chairman: Shri P. Krishnan
  • Member-Secretary: Hemant Kumar, Joint Director (Civ Engg), BIS

2. Sampling Table for Conformity Testing (Table 3, Clause 14.2.1)

Lot Size (No. of Door Closers)First Sample SizeAcceptance NumberRejection Number
Up to 50802
51 to 901302
91 to 1502003
151 to 2803214
281 to 5005025
501 to 12008037
1201 to 320012559
3201 and above200711
  • Second sample sizes are equal to first; cumulative acceptance and rejection numbers increase accordingly.

3. Endurance Test (Annex B, Clause 1.5)

  • Total operations: 50,000 cycles at max load.
  • Continuous operations: minimum 2,500 to 3,000 cycles.
  • Speed: 4 to 6 operations per minute.
  • No defects or oil leakage allowed after test.

4. Materials for Door Closer Components (Table 2, Clause 7)

ComponentSuitable MaterialsReference IS No.
Body & Back PlateCast iron, Aluminium alloy, Zinc alloyIS 210, 617

Popular Questions About IS 3564

?What are the permitted materials for the components of hydraulically regulated door closers under IS 3564?

Under IS 3564, the permitted materials for components of hydraulically regulated door closers are as follows (from Table 2, Clause 7):

Component PartSuitable MaterialsIS Reference Nos.
Non-porous body and back plateCast iron / Aluminium alloy / Zinc alloyIS 210:1978 / 617:1975 / 742:1981
Torsion (helical) springSteelIS 4454 (Part 2):1975 / 2507:1975
NutsCast iron / Steel / BrassIS 210:1978 / 7283:1992 / 292:1983
Piston or Rack-piston/pinionCast iron / Steel / Aluminium alloy / Zinc alloyIS 210:1978 / 7283:1992 / 617:1975 / 742:1981
Packing/washersCork sheet / Nylon / Neoprene rubberIS 4253 (Part 1):1980
Control valve screwBrass / Bronze / Aluminium alloy / Steel / Zinc alloyIS 292:1983 / 28:1985 / 617:1975 / Grade A of 2062:1992 / 742:1981
Hydraulic fluidAll-weather resistant homogeneous high viscosity hydraulic oilIS 3098:1983
Adjusting arm & Main armAluminium alloy / Steel / Zinc alloy / Forged steelIS 617:1975 / 7283:1992 / 742:1981 / 1875:1992
ClampCast iron / Steel / Forged steelIS 210:1978 / 7283:1992 / 1875:1992
Concentric ratchet (bottle type)Steel / Aluminium alloy / Zinc alloyIS 7283:1992 / 617:1975 / 742:1981
Eccentric shaftSteelIS 7283:1992
Internal bearing and glandCast iron / Brass / Steel with mineral oil resistant washersIS 210:1978 / 292:1983 /
?How does IS 3564 define the different sizes and designations of door closers based on door weight and width?

IS 3564 classifies door closers by nominal size based on the door's mass and width (Clause 6, Table 1):

DesignationDoor Mass (kg)Door Width (mm)Typical Use
1Up to 35Up to 700Light doors (e.g., double-leaved, toilet doors)
236 to 60701 to 850Interior doors (bedrooms, kitchen, store)
361 to 80851 to 1000Main doors (entrance doors)

Key Points:

  • The designation number (1, 2, or 3) corresponds to the door closer size suitable for the door's weight and width.
  • This ensures the closer provides adequate hydraulic regulation and closing force.
  • Door closers are either bottle type (Type A) or tubular type (Type B).
  • Universal closers work for both clockwise and anti-clockwise doors without part changes.

This classification helps select the right closer to ensure smooth operation and durability per IS 3564 standards.

?What performance tests are required to ensure compliance with IS 3564?

Performance Tests as per IS 3564:1995

To ensure compliance with IS 3564 for door closers, the following performance tests are mandatory:

  1. Performance Requirements (Clause 8.2 & B-1.4):

    • Test the closer within 15 minutes after conditioning.
    • At test end, the closer must show no defects or oil leakage.
  2. Endurance Test (Clause 14.2.1 & Table 14.3.2):

    • Conduct endurance testing based on lot size with specified sample sizes and acceptance/rejection criteria.
    • Example from Table 14.3.2:
Lot Size (No. of Closers)Sample Size (First)Acceptance NumberRejection Number
Up to 50802
51 to 901302
281 to 5005025
3,201 and above200711
  1. Other Tests (Annex B):
    • Tests on construction, finish, dimensions, interchangeability of parts, and performance as detailed in Annex B.

Summary:

  • Test for no leakage and defects post-conditioning.
  • Perform endurance tests with sampling per lot size and acceptance criteria.
  • Verify construction and dimensional conformity.
Loading diagram...

This ensures reliable, defect-free door closers as per IS 3564 standards.

?How is the hydraulic speed regulation adjusted and tested according to this standard?

According to IS 3564:

Hydraulic Speed Regulation Adjustment

  • The speed is regulated by adjusting the regulating screw or the control valve screw (Clause 8.7).
  • This adjustment compensates for temperature variations between -10℃ to 50℃ without changing the hydraulic oil (Clause 8.3).

Testing Procedure

  • The closer must be tested as per Clause 8.3.1 and the sequence in B-1.2 to B-1.5 (Clause 1.1).
  • Performance checks (Clause 8.2) include:
    • Testing within 15 minutes of conditioning.
    • Ensuring no defects or oil leakage after the test.
  • Manufacturer provides necessary instructions for adjustment and testing at supply time (Clause 8.3 Note).

Summary Table

ParameterRequirement
Temperature range-10℃ to 50℃
Adjustment methodRegulating/control valve screw
Test timingWithin 15 minutes of conditioning
Post-test conditionNo defects or oil leakage
Loading diagram...
?What sampling and acceptance criteria are specified for lot conformity in manufacturing?

Sampling and Acceptance Criteria for Lot Conformity (IS 3564 - Clause 14.3)

  • Sampling: Door closers are randomly selected per IS 4905:1968 (simple or systematic random sampling).
  • Inspection: Sampled closers are checked for construction, finish, dimensions, interchangeability, and performance.
  • Defectives: Any failure in these characteristics = defective.
  • Acceptance/Rejection:
    • If defectives ≤ Acceptance Number → Lot accepted.
    • If defectives ≥ Rejection Number → Lot rejected.
    • If Acceptance Number < defectives < Rejection Number → Take a second sample of same size.
    • Combine defectives from both samples; if combined defectives ≤ Acceptance Number → Lot accepted; else rejected.

Sample Size & Acceptance Criteria (Excerpt from Table 3):

Lot Size (No. of Door Closers)First Sample SizeAcceptance No. (1st)Rejection No. (1st)Second Sample SizeCombined Acceptance No.Combined Rejection No.
Up to 50802812
51 to 9013021312
281 to 50050255067
3,201 and above2007112001819

This procedure ensures quality control by balancing producer and consumer risk in lot acceptance.

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