GB/T 592-2015Marine cast iron flanged check valves (English PDF)
船用法兰铸铁止回阀
This is a limited preview
Buy now to download the full PDF (15 pages)
Need quotation for your management?
Get a formal quotation for GB/T 592-2015 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 3, 2015
Implementation date
October 1, 2015
Scope
GB/T 592-2015 is the English-translated version of 船用法兰铸铁止回阀.
GB/T 592-2015 is the Chinese standard "Marine Cast Iron Flanged Check Valves".
Its scope clause reads: This Standard specifies the classification and designation, requirements, test methods, inspection rules, packaging and storage of marine cast iron flanged check valves; their flange connection dimensions and mating face are as specified in CB/T 4196 and GB/T 2501.
This Standard applies to the design, manufacture and acceptance of check valves for piping systems whose medium is sea water, fresh water, lubricating oil or fuel oil.
Its clauses include application scope; classification and designation; requirements; test methods; inspection rules; packaging and storage. It was issued by the General Administration of Quality Supervision, Inspection and Quarantine on JULY 3, 2015 and took effect on OCTOBER 1, 2015.
Found what you need?
Document preview — GB/T 592-2015
National Standard of the People's Republic of China
- ICS
- 47.020.30
- Classification
- U 52
- Replacing
- GB/T 592-1993
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword3
- 1 Application Scope4
- 2 Normative References4
- 3 Classification and Designation5
- 4 Requirements8
- 5 Test Methods9
- 6 Inspection Rules10
- 7 Packaging and Storage11
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 592-1993, Marine Cast Iron Flanged Lift Check Valves.
Compared with GB/T 592-1993, the major changes in technical content are as follows.
-- it cancels the use of cast iron stop valves in steam piping system;
-- it modifies the way of designation;
-- it modifies the processing requirements in accordance with GB/T 600.
1 Application Scope
This Standard specifies the classification and designation, requirements, test methods, inspection rules, packaging and storage of marine cast iron flanged check valves; their flange connection dimensions and mating face are as specified in CB/T 4196 and GB/T 2501.
This Standard applies to the design, manufacture and acceptance of check valves for piping systems whose medium is sea water, fresh water, lubricating oil or fuel oil.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to this Standard.
GB/T 600-2008, General Specifications for Marine Piping Valves and Fittings
GB/T 1176-2013, Casting Copper and Copper Alloys
GB/T 1184-1996, Geometrical Tolerancing - Geometrical Tolerance for Features without Individual Tolerance Indications
GB/T 1804-2000, General Tolerances - Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications
GB/T 1958, Geometrical Product Specifications (GPS) - Geometrical Tolerance - Verification Prescription
GB/T 2501, Connection Dimensions and Mating Face of Marine Flanges
GB/T 3032, Marks for Marine Piping Valves and Fittings
GB/T 9439-2010, Grey Iron Castings
GB/T 11698, Metal Valves for Use in Marine Flanged Pipe Systems - Face-to-face and Center-to-face Dimensions
CB/T 3927, Wall Thickness of Casting Body for Marine Valve
CB/T 4196, Marine Pipe Flanges - Connection Dimensions and Mating Face
4 Requirements
4.6 Appearance
The appearance of check valves shall be as specified in GB/T 600-2008, 3.10.
4.7 Mass
See Table 2 and Table 3 for the masses of check valves; their positive deviation shall not exceed 4% of design mass.
4.8 Marking
The marking of check valves shall be as specified in GB/T 3032.
5 Test Methods
5.1 Material
The test methods for chemical composition and mechanical properties for the castings of check valves are specified in GB/T 1176-2013 and GB/T 9439-2010; other materials are inspected by inspecting the material designation and material quality certificate. The results shall be as specified in 4.1.
5.2 Strength
The method for the strength test of check valves is as specified in GB/T 600-2008, 4.12.3. The results shall be as specified in 4.2.
5.3 Air-tightness
The method for the air-tightness test of the valve disk and valve seat of check valves is specified in GB/T 600-2008, 4.13.3. The results shall be as specified in 4.3.
5.4 Dimensional tolerances
The linear dimensional tolerances of check valves shall be inspected with a measuring tool of an appropriate grade. The results shall be as specified in 3.3 and 3.4.
5.5 Geometric tolerances
The geometric tolerances of check valves shall be inspected as specified in GB/T 1958. The results shall be as specified in 4.5.
5.6 Appearance
The appearance of check valves is inspected by visual inspection. The results shall be as specified in 4.6.
5.7 Mass
6 Inspection Rules
6.2.3 Quantity of samples for inspection
The quantity of samples for the type inspection of check valves shall be 3.
6.2.4 Evaluation criteria
If all samples of check valves pass all inspection items, then the type inspection is decided to be a pass. In case there is any check valve whose materials are not as specified, then the type inspection is decided to be a fail; in case of any item which is not as specified, a reinspection shall be performed by doubling samples; if the reinspection is a pass, then the type inspection of check valves is decided to be a pass; if there is still any unsatisfactory item in the reinspection, the type inspection of check valves is decided to be a fail.
6.3 Exit-factory inspection
6.3.1 Inspection items
See Table 5 for the exit-factory inspection items and sequence of check valves.
6.3.2 Quantity of test samples
Except that materials are tested in accordance with the batch grouping specifications (one batch consisting of materials of the same furnace number), other inspections shall be performed on products one by one.
6.3.3 Evaluation criteria
If all samples of check valves pass all inspection items, then the exit-factory inspection is decided to be a pass. In case there is any check valve whose materials are not as specified, then the exit-factory inspection is decided to be a fail; in case of any check valve which is not as specified, a reinspection is allowed after rework is done. if the reinspection is a pass, then the exit-factory inspection of check valves is decided to be a pass; if there is still any unsatisfactory item in the reinspection, the exit-factory inspection of check valves is decided to be a fail.
7 Packaging and Storage
The packaging and storage of check valves are specified in GB/T 600-2008, Article 6.
8 Marking - - 4.8 5.8
NOTE - a required item; - a non-inspection item. […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 600-2008General specifications for marine piping valves and fittings
- GB/T 1176-2013Casting copper and copper alloys
- GB/T 1184-1996Geometrical tolerancing. Geometrical tolerance for features without individual tolerance indications
- GB/T 1804-2000General tolerances - Tolerances for linear and angular dimensions without individual tolerance indications
- GB/T 1958Geometrical Product Specifications(GPS)—Geometrical tolerance—Verification
- GB/T 2501Connection dimensions and mating face of marine flanges
CB/T 3927 · CB/T 4196
Similar standards
Editions of GB/T 592
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 592-2015 | Marine cast iron flanged check valves | current edition | Current |
| GB/T 592-1993 | Marine cast iron flanged check valves | previous edition | Superseded |
This page sells the current edition, GB/T 592-2015. Earlier editions are listed for reference only.
How to Download GB/T 592-2015
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 11698-2008 — Metal valves for use in marine flanged pipe systems -- Face-to-face and center-to-face dimensions
GB/T 1176-2013 — Casting copper and copper alloys
GB/T 1184-1996 — Geometrical tolerancing. Geometrical tolerance for features without individual tolerance indications
Secure payment via Stripe
Payments accepted
GB/T 592-2015
$75.00