GOST R 51733-2001 PDF

Full title and description

GOST R 51733-2001 — Gas-fired central heating boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW. Safety requirements and test methods. (Russian title: ГОСТ Р 51733-2001: Котлы газовые центрального отопления, оснащенные атмосферными горелками, номинальной тепловой мощностью до 70 кВт. Требования безопасности и методы испытаний.)

Abstract

This national Russian standard specifies safety requirements, classifications and test methods for gas-fired central heating boilers equipped with low‑pressure atmospheric burners and having nominal heat input up to 70 kW. It covers mechanical, thermodynamic and combustion‑safety aspects including pressure and leakage checks, ignition and shut‑off behavior, combustion‑product removal, measurement of thermal output and efficiency, and emissions (NOx) testing.

General information

• Status: Active / in force.
• Publication date: 1 January 2002 (designated GOST R 51733-2001).
• Publisher: National standard of the Russian Federation (issued under the Federal agency for technical regulation / Rosstandart).
• ICS / categories: 27.060.20 (Gas fuel burners) — classification places the standard among burners/boilers and related energy/heat‑engineering documents.
• Edition / version: GOST R 51733-2001 (first issued to take effect 01.01.2002).
• Number of pages: 61 pages (standard text).

Scope

The standard applies to domestic and small commercial central‑heating boilers of type B11BS equipped with atmospheric (low‑pressure) burners, designed to operate on gases from the three standard gas families and having nominal input not exceeding 70 kW, water temperatures up to 95 °C and water pressure up to 0.6 MPa. It excludes outdoor boilers, multi‑module units with a common draught stabilizer, forced‑air (fan) burners, condensing boilers, units intended for connection to a shared flue with an induced‑draft fan, and combined central‑heating / domestic hot‑water packages. The document specifies required tests and limits for safe operation under a range of gas types and supply pressures.

Key topics and requirements

• Classification of gases into families/groups by Wobbe index and designation of test gases for each family.
• Requirements for combustion‑product evacuation (chimney/flue tightness and blocked‑flue checks).
• Water circuit tightness and maximum permitted operating water temperature/pressure.
• Performance measurements: determination of input power, thermal output and test methods for efficiency (heat transferred to water).
• Controls and safety devices: requirements and tests for gas valves, regulators, ignition and flame‑failure systems (times to ignite/extinguish, reliability cycles).
• Pressure test regimes (nominal/min/max test pressures) and procedures for correcting performance to reference conditions.
• Emission testing (NOx limits and measurement procedures, including normalization to reference conditions).

Typical use and users

Used by boiler manufacturers, burner and appliance designers, test laboratories, conformity assessment and certification bodies, installation and commissioning engineers, and regulatory or standards authorities to demonstrate compliance with Russian safety and performance requirements for small gas central‑heating boilers. It is also referenced by procurement and technical documentation when specifying appliances for residential and light commercial heating.

Related standards

Related and cross‑referenced GOST/GOST R standards include documents on gas burners and controls (for example GOST 21204 series), later GOST R documents on burner safety and automatic controls, and other national standards covering boiler safety, test methods and emissions. Regional/European standards on gas boilers and burner control systems (EN series) cover similar subject matter and are commonly consulted for harmonization.

Keywords

gas boiler, central heating, atmospheric burner, safety requirements, test methods, Wobbe index, NOx, efficiency, flue, ignition, gas valve, GOST R 51733-2001.

FAQ

Q: What is this standard?

A: A Russian national standard that sets safety requirements and prescribes test methods for gas‑fired central heating boilers with atmospheric burners and nominal input up to 70 kW (designation GOST R 51733-2001).

Q: What does it cover?

A: Designated tests and performance/safety criteria including gas classification, pressure and leakage tests, combustion and flue‑gas handling, control and safety device requirements (ignition, flame failure, shut‑off valves), thermal output/efficiency measurement and emissions (NOx) evaluation.

Q: Who typically uses it?

A: Manufacturers of small domestic and light‑commercial boilers, test laboratories, certification bodies, installers and authorities responsible for appliance safety and conformity in the Russian market.

Q: Is it current or superseded?

A: As published it is in force (active) in the national catalogue; users should verify whether a later amendment or replacement exists for specific conformity tasks or regulatory compliance. The original took effect 01 January 2002.

Q: Is it part of a series?

A: It belongs to the family of GOST/GOST R standards addressing gas appliances, burners and boiler safety/test methods and is frequently referenced alongside other national standards covering burners, controls and boiler assemblies.

Q: What are the key keywords?

A: Gas boiler; atmospheric burner; central heating; safety; test methods; Wobbe index; NOx; efficiency; flame supervision; gas valve.