API 6D ball valve manufacturer - Ball Valve API 6D

What is API 6D Standard?

This specification defines the requirements for the design, manufacturing, assembly, testing, and documentation of ball, check, gate, and plug valves for application in pipeline and piping systems for the petroleum and natural gas industries.

API Standard 6D, from the American Petroleum Institute, provides specifications for pipeline valves.

API 6D covers the design, manufacture, testing, and documentation for pipeline ball, check, gate, and plug valves for pressure ratings up to ASME class 2500.

VALVE SPECIFICATIONS OF API 6D

The standard specifies configurations for the following types of valves:

Gate valves
Lubricated and non-lubricated plug valves
Ball valves
Check valves
Full-opening valves
Reduced-opening valves
The valve ends may be flanged or welded. If fluid can become trapped in the body cavity, then valves for both gas and liquid service must have a pressure relief. Actuators may be electric, hydraulic, or pneumatic.

TESTS OF API 6D

API 6D specifies the following tests:

Stem backseat test
- Pressure at 1.1 times valve rating for 2 to 5 minutes depending on valve size
- No visible leakage
Hydrostatic shell test
- Pressure at 1.5 times valve rating for 2 to 30 minutes depending on valve size
- No visible leakage
Hydrostatic seat test
- Pressure at 1.1 times valve rating for 2 to 5 minutes depending on valve size
- Soft-seated valves: No visible leakage
- Metal-seated valves: Leakage not more than two times ISO 5208 Rate D

ZECO Valve supplies API 6D Valve, Pipeline Valve including Ball Valve, Gate valve, Globe valve, Check valve, and Butterfly valve.

API 6D Valves

API 6D Valve Types and Sizes

For Forged Steel Valves

Range: 1/2” Class 800 & 2” to 6” Class 1500
Body Material: Forged Carbon Steel as per ASTM A105N
Forged Stainless Steel 316&304
Type of ends: Screwd, Socked Weld & Flange Ends.
Forged Steel Ball Valve: A105 & 316
Range of Size: 1/4” to 3”
Available in: 1000-2000-3000PSI
Type of End: NPT

For Cast Steel Valves

Range Of Sizes: 2” to 48”
Pressure Class: Class 150, Class 300, Class 600, Class 900, Class 1500
Body Material: ASTM A216 WCB, Stainless Steel ST. 316/304
Type Of Ends: Flanged Ends in R.F/RTJ, NPT

API 6D Valve Main Materials

Carbon Steel Valve in API 6D
- WCB, WCC, LCB, LCC, A105N, LF2, Q235, 25, 45
Alloy Steel Valve
- F5, F11, F22, F51, F55, F53, 4A, 5A, WC5, WC6, WC9
Stainless Steel Valve
- CF3M, CF8, CF8M, F51, F304, F304L, F316, F316L, F317, F347, F321
Special Alloy Steel Valve
- M-35C, MONEL K400, K500, Hastelloy C276, C59800, CU5MCUC, INCONEL626,
  INCOLOY825, TA 1, TA2, TA10

What is an API 6D Ball Valve?

API 6D ball valves are designed for reliability and high performance and are an excellent choice for shutoff applications in the power, oil & gas, and petrochemical industries. API 6D floating ball valve and API 6D trunnion mounted ball valves are available. Ball valve API 6D fully meets the design, manufacture, and testing of API 6D specifications.

Specifications of API 6D Ball Valves

Design and Manufacture	API 6D
Wall Thickness	API 6D
Face-to-Face Dimension	API 6D
Flange End Dimension	ANSI/ASME B16.5 (1” to 24”) ANSI/ASME B16.47 (26” & up)
Butt-Weld End Dimension	ANSI/ASME B16.25
Inspection & Testing	API 6D/API 598
Fire Safe Design	API 607/BS 6755
Material	Nace MR 0175