GOST 33856-2016 PDF

Full title and description

GOST 33856-2016 — "Арматура трубопроводная. Методика проведения испытаний на огнестойкость" (English title: "Pipeline valves. Method of fire testing"). The standard establishes procedures, test conditions and criteria for assessing the fire resistance of pipeline valves used in oil, gas, petrochemical and other industrial installations.

Abstract

GOST 33856-2016 defines a reproducible laboratory method to expose pipeline valves to flame/thermal attack under controlled pressure and temperature conditions, record relevant parameters (temperature, leakage, structural integrity) and determine the time to reach specified limit states. The method is intended to demonstrate whether a valve can maintain its shut‑off or other required function during a defined fire exposure.

General information

• Status: Active (Действующий).
• Publication date: Adopted by Rosstandart (order) 14 July 2017; commonly published/entered into force 01 January 2018 (GOST designation year 2016).
• Publisher: Federal Agency on Technical Regulating and Metrology (Rosstandart) / interstate GOST. Developed by AO NPF "TsKBA" and submitted via the interstate technical committee.
• ICS / categories: 23.060.01 (Valves in general) — valves / pipeline fittings classification.
• Edition / version: GOST 33856-2016 (introduced 2017/2018 cycle).
• Number of pages: Approximately 19–20 pages (varies by publisher/format).

Scope

The standard applies to pipeline valves (shut‑off, control and similar types) intended to operate in pipelines conveying flammable or non‑flammable media and defines a method to determine fire resistance under simulated hydrocarbon/thermal exposure. It does not cover valves with built‑in drives (electric, electromagnetic, pneumatic, hydraulic or combined actuators) where additional provisions may apply.

Key topics and requirements

• Definition of test specimen preparation, instrumentation and mounting (pressure circuits, thermocouples, leakage measurement points).
• Specified thermal exposure profile — burner arrangement and temperature control to achieve target flame/ambient temperatures (examples in the standard: rapid attainment of ~750 °C within 2 minutes and maintenance of specified averages during test).
• Nominal test duration and acceptance criterion — performance assessed over a defined exposure period (commonly referenced in guidance and implementations as a 30‑minute evaluation to determine whether the valve retains its required function).
• Pressure and leakage checks during and after fire exposure; procedures for forced cooling (water quench) and limits for cooldown time (examples: cooling to external surface temperature below 100 °C within specified time).
• Criteria for limit states: loss of tightness, loss of structural integrity, inability to operate to required position, unacceptable leakage rates — recorded as time to failure.

Typical use and users

Manufacturers of pipeline valves, independent test laboratories, certification bodies, plant engineering teams and asset owners/operators in oil & gas, petrochemical, chemical and power sectors use this standard to evaluate and demonstrate valve fire performance as part of type testing, qualification and procurement specifications.

Related standards

Closely related documents include other pipeline‑valve standards and test methods (e.g., GOST/industry standards for valve testing and control methods such as GOST 33257 series), national/international valve standards and the ICS 23.060 valve family of standards that address dimensional, performance and testing requirements. Users commonly apply GOST 33856-2016 alongside other GOST testing and safety standards referenced within the document.

Keywords

pipeline valves; fire testing; fire resistance; valve fire test method; leakage; thermocouples; pressurized testing; Rosstandart; GOST 33856-2016.

FAQ

Q: What is this standard?

A: GOST 33856-2016 is a GOST (interstate) standard titled "Pipeline valves. Method of fire testing" that specifies how to conduct laboratory fire exposure tests on pipeline valves to assess fire resistance and functional integrity.

Q: What does it cover?

A: It covers specimen preparation, burner and temperature control, instrumentation, pressurization, measurement of leakage and other parameters, criteria for limit states and reporting procedures for fire testing of pipeline valves. It excludes valves with integrated drives.

Q: Who typically uses it?

A: Valve manufacturers, test houses, certification authorities, procurement/specification engineers and plant safety/engineering departments in sectors where valve performance under fire is safety‑relevant (oil & gas, petrochemical, LNG, refinery, power).

Q: Is it current or superseded?

A: As of its publication cycle, GOST 33856-2016 is listed as an active standard (introduced via Rosstandart in 2017 and commonly published for use from 2018). Users should check national registries or Rosstandart for any later amendments or replacements before relying on the text for certification.

Q: Is it part of a series?

A: It belongs conceptually to the body of standards for pipeline valves (ICS 23.060 series) and is typically used alongside other GOST standards that cover valve design, testing, welding, seismic testing and documentation.

Q: What are the key keywords?

A: Fire resistance; fire testing; pipeline valves; leakage; thermocouples; pressurization; valve qualification; GOST 33856-2016.