API/ANSI Double Flanged Cast Ductile Iron Ball Valves

• Customization: Available
• Media: Oil,Gas,Water
• Temperature: High Temperature
• Model NO.: Q41F -125/150LB
• Type: Direct-acting
• Material: Carbon Steel
• Connection Form: Flange
• Pressure: High Pressure
• Actuator: Manual
• Seal Surface: Ball
• Thread Position of Valve Rod: Outside Gate Valve
• Usage: Regulation
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage
• Transport Package: Plywood
• Specification: DN32~DN800
• Trademark: non
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000PCS/Month

Product Description

Introduction

 Working Principle

The valve consists of a valve body, a valve ball, a valve stem, and other components. The valve ball is the core component for controlling the flow of the medium. It has a spherical hole in the middle. When the valve is in the open state, the spherical hole of the valve ball is aligned with the flow channel of the valve body, allowing the medium to flow through the valve with minimal resistance.

When it is necessary to close the valve, the valve stem rotates the valve ball by 90°. As a result, the spherical hole of the valve ball is perpendicular to the flow channel of the valve body, blocking the flow of the medium. The sealing performance between the valve ball and the valve seat is ensured by the elastic deformation of the valve seat material (such as PTFE). When the medium pressure increases, the valve seat will be pressed more tightly against the valve ball, thereby enhancing the sealing effect.

In summary, the API cast iron ball valve controls the on - off and flow of the medium by rotating the valve ball through the valve stem to achieve the purpose of pipeline fluid control.

API cast iron ball valves are ball valves designed and manufactured in accordance with American Industrial Standards (API), which are widely used in the industrial field.   

Specification

Design & Dimensions:
ANSI/ASME B16.34: Pressure-temperature ratings, face-to-face dimensions (ANSI B16.10), and end connections (ANSI B16.5).
API 608: Metal ball valve requirements for flanged, threaded, and welded ends (supplementary to ASME B16.34).
Materials:
ASTM A126: Gray cast iron for valve bodies (Grades B/C for general service).
ASTM A351 CF8/CF8M: Stainless steel trim (optional for corrosive environments).
NACE MR0175: Sulfide stress corrosion resistance (for oil & gas adjacent services).
Testing & Performance:
API 598: Factory hydrostatic shell testing (1.5x rated pressure) and seat leakage testing (Class V/VI for soft seats).
ISO 5208: Leakage classification (Class IV for metal seats, Class VI for soft seats).
ASME B31.3: Process piping compliance for chemical and petrochemical applications.
Industry-Specific Standards:
ANSI 61: Drinking water applications
API 607: Fire-safe testing for valves in hazardous environments (optional for cast iron models).

Packing 

shipment

containers

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

After Sales Service

Standard Warranty: 18 months after receipt of the goods.
Global Support: 24/7 technical assistance and spare parts supply.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

globe valve
check valve
strainer
flanges
ball valve

FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.