InfraLensInfraLens
IS CodesIRCToolsSORHandbookQA/QCPMCFormatsCPHEEOMapsProjectsDCRRulesAbout Join Channel
Join
IS CodesIRCToolsSORHandbookQA/QCPMCFormatsCPHEEOMapsProjectsDCRDesign RulesBIMAbout Join WhatsApp Channel
InfraLensInfraLens
IS CodesIRCToolsSORHandbookQA/QCPMCFormatsCPHEEOMapsProjectsDCRRulesAbout Join Channel
Join
IS CodesIRCToolsSORHandbookQA/QCPMCFormatsCPHEEOMapsProjectsDCRDesign RulesBIMAbout Join WhatsApp Channel

IS 14912 : 2001Door Closers, Concealed Type (Hydraulically Regulated)

PDFGoogleCompareBIS Portal
Link points to Internet Archive / others. Not hosted by InfraLens. Details
EN 1154 · ANSI/BHMA A156.4 · BS EN 1154
CurrentSpecializedSpecificationBIMArchitectural · Builder Hardware
PDFGoogleCompareBIS Portal
Link points to Internet Archive / others. Not hosted by InfraLens. Details
OverviewValues5InternationalTablesFAQ4Related

IS 14912:2001 is the Indian Standard (BIS) for door closers, concealed type (hydraulically regulated). This standard specifies the requirements for hydraulically regulated concealed type door closers. It covers materials, dimensions, manufacture, performance criteria like endurance and efficiency, and methods of testing for different sizes of closers.

Door Closers, Concealed Type (Hydraulically Regulated)

Overview

Status
Current
Usage level
Specialized
Domain
Architectural — Builder Hardware
Type
Specification
International equivalents
EN 1154:1996 · CEN (European Committee for Standardization), EuropeANSI/BHMA A156.4-2019 · BHMA (Builders Hardware Manufacturers Association) / ANSI (American National Standards Institute), USABS EN 1154:1997 · BSI (British Standards Institution), UK
Typically used with
IS 617IS 209IS 9844IS 210
Also on InfraLens for IS 14912
5Key values2Tables4FAQs

BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.

Practical Notes
! Ensure the closer size is correctly matched with the door's weight and width as per Table 1 to ensure proper functioning and prevent damage.
! Concealed closers require precise morticing in the door leaf or frame; it is crucial to coordinate with the door manufacturer for factory preparation.
! During installation, verify that the two-stage closing action (main closing and final latching) is correctly adjusted for both safety and security.
Frequently referenced clauses
Cl. 5Material and ManufactureCl. 6Dimensions and TolerancesCl. 7Performance RequirementsCl. 7.5EnduranceCl. 9Tests
Pulled from IS 14912:2001. Browse the full clause & table index below in Tables & Referenced Sections.
aluminum alloycast ironsteelhydraulic fluid

International Equivalents

Similar International Standards
EN 1154:1996CEN (European Committee for Standardization), Europe
HighCurrent
Building hardware — Controlled door closing devices — Requirements and test methods
Covers all hydraulically controlled door closers, including the concealed type specified in IS 14912.
ANSI/BHMA A156.4-2019BHMA (Builders Hardware Manufacturers Association) / ANSI (American National Standards Institute), USA
HighCurrent
Door Controls — Closers
Details requirements for various door closers, including concealed models, with a focus on performance grades.
BS EN 1154:1997BSI (British Standards Institution), UK
HighCurrent
Building hardware. Controlled door closing devices. Requirements and test methods
The British adoption of the European standard EN 1154, making it functionally identical.
Key Differences
≠IS 14912 uses a simple 3-grade system based only on door mass (up to 80 kg). In contrast, EN 1154 uses a comprehensive 6-digit classification code covering use, cycles, door mass/closing moment, fire suitability, safety, and corrosion resistance, with 7 power sizes (EN1-EN7).
≠While IS 14912 specifies 500,000 endurance cycles, ANSI/BHMA A156.4 has a tiered system with much higher requirements for top grades: Grade 1 requires 2,000,000 cycles, Grade 2 requires 1,000,000, and Grade 3 requires 500,000.
≠EN 1154 and ANSI/BHMA A156.4 have mandatory, specific classifications and testing protocols for closers intended for fire-rated doors. IS 14912 mentions suitability for fire doors but lacks a formal classification code or separate testing regime for it.
≠International standards like EN 1154 specify multiple grades of corrosion resistance (e.g., up to 240 hours salt spray for Grade 4), whereas IS 14912 has a single requirement of 96 hours salt spray test.
Key Similarities
≈All standards are fundamentally based on testing hydraulically regulated devices that control a door's closing swing.
≈Both IS 14912 and EN 1154 specify a standard endurance test of 500,000 opening and closing cycles to verify durability.
≈All standards mandate testing the closer's performance at different temperatures to ensure operational stability, with IS 14912 testing at -10°C to +50°C and EN 1154 at -15°C to +40°C.
≈The standards require separate adjustments and performance tests for the main closing speed and the final latching speed to ensure the door closes securely without slamming.
Parameter Comparison
ParameterIS ValueInternationalSource
Endurance Cycles500,000 cycles for all grades500,000 cycles (Category 8)EN 1154:1996
Sizing / Power GradingBy door mass: Grade 1 (<40kg), Grade 2 (40-60kg), Grade 3 (60-80kg)By closing moment (Nm) & door width: 7 sizes from EN1 to EN7EN 1154:1996
Corrosion Resistance (Salt Spray)96 hours (pass/fail)Graded system: 24h (Grade 1), 48h (Grade 2), 96h (Grade 3), 240h (Grade 4)EN 1154:1996
Fire Door SuitabilityNo specific classification code; general functional requirementMandatory classification digit (Digit 4): Grade 1 = SuitableEN 1154:1996
Operating Temperature Test Range-10°C and +50°C-15°C and +40°CEN 1154:1996
Closer EfficiencyNot explicitly defined or measured as a percentageMinimum 60% efficiency is specified (force to open vs. closing moment)ANSI/BHMA A156.4-2019
Backcheck FunctionNot a mandatory feature or test requirementAn optional feature, but its performance is defined and must be tested if includedEN 1154:1996
⚠ Verify details from original standards before use

Key Values5

Quick Reference Values
Minimum endurance test cycles500,000 cycles
Adjustable closing time (from 90°)3 to 30 seconds
Minimum thermal stability range-10°C to 50°C
Neutral salt spray test duration96 hours
Minimum efficiency60 percent

Tables & Referenced Sections

Key Tables
Table 1 - Sizes of Door Closers
Table 2 - Performance Requirements
Key Clauses
Clause 5 - Material and Manufacture
Clause 6 - Dimensions and Tolerances
Clause 7 - Performance Requirements
Clause 7.5 - Endurance
Clause 9 - Tests

Related Resources on InfraLens

Cross-Referenced Codes
IS 617:1994Aluminium and Aluminium Alloy Ingots for Reme...
→
IS 209:1992Zinc Ingots - Specification
→
IS 9844:2006Ready-Mixed Concrete — Code of Practice
→
IS 210:2009Grey Iron Castings
→

Frequently Asked Questions4

What is the required endurance life of a concealed door closer under this standard?+
The closer must successfully complete 500,000 opening and closing cycles without failure or significant loss of performance (Clause 7.5).
How are concealed door closers sized?+
They are categorized into four sizes (Size 1 to 4) based on the maximum permissible mass of the door leaf (e.g., Size 1 for up to 25 kg, Size 4 for up to 80 kg) as per Table 1.
What is the corrosion resistance requirement?+
The door closer's protective coating must withstand a 96-hour neutral salt spray test without showing signs of corrosion that would affect its function (Clause 7.6).
Is the closing speed adjustable?+
Yes, the closing time from a 90-degree open position must be adjustable between 3 and 30 seconds (Clause 7.2).

QA/QC Inspection Templates

📋
QA/QC templates coming soon for this code.
Browse all 300 templates →