Description

API 10000# Floating Ball Valve with Hub Ends — Technical Data Sheet

1. Product Overview

This technical data sheet covers the API 6A Floating Ball Valve, rated for 10,000 psi (API 10000#)working pressure, with hub ends suitable for Grayloc-type clamp connectors. The valve utilizes a floating ball design in which the ball is not fixed by trunnions; under line pressure, the ball shifts slightly downstream and compresses against the downstream seat to achieve a positive, bidirectional seal. This valve is intended for moderate-sized, high-pressure oil and gas applications including wellhead equipment, manifold systems, choke-and-kill lines, and process piping where compact design and reliable sealing are required.

Typical Service Media: Crude oil, natural gas, well fluids, and H₂S/CO₂-containing sour media. The valve may be supplied in single-ball or modular Double Block & Bleed (DBB) configuration.

2. Applicable Standards & Codes

3. Technical Specifications

• PSL 3G applies to PSL 3 products that have satisfied the additional requirements of gas testing.

• PR2 qualification includes design validation testing per API 6A Annex F, encompassing cyclic endurance, thermal cycling, and fire testing.

• Material Class FF corresponds to sour gas service with gas-phase mixture of 10% H₂S + 80% CO₂ + 10% CH₄.

4. Hub End Connection Specifications

Hubs are manufactured per Grayloc standards and can be customized for blind, reduced-port, or instrument connections. The floating ball valve’s inherently low operating torque makes it well suited for clamp-type connections.

5. Materials of Construction

All wetted and pressure-containing components comply with NACE MR0175 / ISO 15156 for sour service when specified. The following table presents standard and optional materials.

Note: For offshore sour gas applications, material shall be 60K minimum yield strength class, Material Class FF, compliant with NACE MR0175. Body material options include UNS S31803 (Duplex SS) and ASTM A522 Type I.

6. Design Features

7. Testing & Inspection Requirements

All valves shall be tested in accordance with API 6A and, where applicable, API 598.

Hold Times: PSL 3G typically requires extended hold times (minimum 15 minutes) for both shell and seat tests, with gas testing performed in a water immersion tank to allow visual bubble detection.

8. Operation & Actuation

Torque Values: Detailed torque data shall be provided on a per-size basis in the project-specific data sheet. Floating ball valves exhibit lower operating torque compared to trunnion-mounted designs, which is an advantage for hub/clamp-type installations.

9. Certification & Documentation

The following certification documentation shall be provided as standard:

• API 6A Certificate of Compliance (minimum PSL 3)

• API 6FA / API 607 Fire-Safe Type Approval Certificate

• NACE MR0175 / ISO 15156 Material Compliance Statement

• PR2 Test Report (third-party witnessed, per API 6A Annex F)

• ISO 15848-1 Fugitive Emission Type Approval Certificate or ISO 15848-2 Test Report

• Finite Element Analysis (FEA) Report for pressure-containing components

• Material Test Certificates (EN 10204 Type 3.1) with full traceability

• Hydrostatic & Gas Test Reports

• NDE Reports (MPI / LPI / RT as applicable)

• Factory Acceptance Test (FAT) Report

• Installation, Operation & Maintenance (IOM) Manual

Optional: Third-party inspection and certification by ABS, LR, DNV, BV, or CCS (Class B Product Certificate).

10. Installation & Service Recommendations

• Hub Connection Assembly: Hub clamp connectors must be assembled following the hub manufacturer’s bolt tensioning procedures to ensure proper metal-to-metal bore seal engagement.

• Valve Orientation: The floating ball valve is bidirectional and may be installed with flow in either direction; however, the preferred orientation is with the upstream pressure driving the ball into the downstream seat.

• Cavity Venting: For DBB configurations, the body cavity bleed port must be connected to a safe vent or drain system to allow pressure monitoring and cavity depressurization during maintenance.

• Maintenance: Seats and seals are field-replaceable. The side-entry or top-entry body design allows in-line maintenance without valve removal from the pipeline.

• Spare Parts: Recommended spare parts kit includes seats, stem packing, body gaskets, and sealant injection consumables.

11. Remarks

This data sheet provides general technical specifications for API 6A Floating Ball Valves rated 10,000 psi with hub ends. Specific technical requirements, dimensional details, material substitutions, actuator sizing, and supplementary testing shall be subject to the project purchase specification and data sheet. Manufacturers shall confirm all parameters against the latest editions of the referenced standards at the time of order.