Specification

TIANYU ANSI 150LB CF8M Stainless Steel Flange Floating Ball Valve (PTFE Seal)

I. Product Overview

TIANYU ANSI 150LB floating ball valve is a high-performance flow control solution engineered for corrosive and general industrial pipelines. Crafted from CF8M (316 stainless steel), it features a floating ball structure, PTFE seals, and flange connections to handle water, steam, oil, and aggressive chemicals like nitric acid and acetic acid. Operating at 150LB (2.0MPa) and -29℃~180℃, it complies with API 6D, API 608, and JIS standards. Designed for 1/2″~10″ (DN15~DN250) pipelines, it balances corrosion resistance, reliable sealing, and ease of operation—ideal for water treatment, petrochemical, and food processing industries where durability and media compatibility are critical.

II. Key Attribute Parameters

Category	Details
Size Range	1/2″~10″ (DN15~DN250), with common specifications including 1″ (DN25) and 3″ (DN80).
Pressure Rating	ANSI 150LB (PN16, 2.0MPa), with optional 300LB~600LB for higher-pressure systems.
Temperature Range	-29℃~180℃, limited by PTFE seal material (resistant to cold flow and thermal degradation within this range).
Material Configuration	– Body & Ball: CF8M (ASTM A351 Gr. CF8M, 316 stainless steel), containing 2-3% molybdenum for enhanced chloride corrosion resistance. – Seal: PTFE (polytetrafluoroethylene) with 25% glass fiber reinforcement, offering chemical inertness and low friction. – Stem: 316 stainless steel, anti-blowout design to prevent ejection under pressure. – Fasteners: 304 stainless steel bolts/nuts for corrosion resistance.
Connection Type	Flanged (RF/RTJ per ANSI B16.5/JIS B2212), ensuring leak-tight integration with standard pipelines and easy disassembly.
Actuation	Manual (handwheel) as standard; optional worm gear, pneumatic, or electric actuators via ISO 5211 mounting pads.
Design Standards	API 6D, API 608, JIS B2071; Testing: API 598 (hydrostatic shell test at 1.5×150LB, seat test at 1.1×150LB).

150lb Flange Floating Stainless Steel 304 316 CF8M Ball Valve Material List:

NO.	PARTS	MATERIAL
1	BODY	WCB	CF8	CF8M
2	SEAT	PTFE
3	BALL	CF8	CF8	CF8M
4	O-RING	FPM
5	GASKET	PTFE
6	BONNET	WCB	CF8	CF8M
7	BOLT	304
8	NUT	304
9	STEM	304	304	316
10	STEM WASHER	PTFE+25% GF
11	O-RING	FPM
12	PACKING	PTFE
13	WEAR WASHER	PTFE+25% GF
14	GLAND	304
15	DISC SPRING	304
16	GLAND FLANGE	CF8
17	STOPPER	304
18	HEX SOCKER BOLT	304
19	NUT	304
20	HANDLE	WCB/CF8
21	BOLT	304
22	NUT	304

Product Overview

III. Features Description

Floating Ball Structure: The ball “floats” freely, relying on media pressure to press against PTFE seats, creating a self-tightening seal. This design simplifies construction, reduces weight, and ensures reliable sealing in medium-pressure systems (≤150LB), making it ideal for frequent on-off operations.
PTFE Seal Performance: PTFE seats with glass fiber reinforcement offer exceptional chemical inertness, resisting acids, alkalis, solvents, and oils—critical for pharmaceutical and chemical processes where media purity is required. The reinforcement prevents cold flow (deformation under pressure), ensuring long-term sealing integrity.
CF8M Corrosion Resistance: CF8M (316 stainless steel) outperforms CF8 (304) in chloride-rich environments, resisting pitting and crevice corrosion in seawater, brine, and coastal applications. It is particularly suited for media containing chlorides, such as swimming pool water or industrial wastewater.
Safety-Enhanced Design:
- Anti-blowout stem: A mechanical shoulder on the stem prevents ejection under pressure, eliminating leakage risks in high-pressure scenarios.
- Anti-static device: Metal springs connect the ball to the body, dissipating static electricity to reduce spark hazards in flammable media (e.g., natural gas).
- API 607 fire-safe option: Metal backup seals maintain sealing if PTFE degrades in fire, meeting safety standards in oil & gas facilities.
Full Bore/Reduce Bore Options: Full bore minimizes pressure drop for high-flow systems (e.g., water mains); reduce bore balances cost and performance for low-flow applications (e.g., metering lines), offering flexibility for diverse pipeline needs.

IV. Manufacturing Processes

Precision Casting: CF8M stainless steel is investment-cast to form valve bodies and balls, ensuring uniform material density and dimensional accuracy. Castings undergo strict visual and ultrasonic inspections to eliminate defects like porosity.
Heat Treatment: Cast components are solution-annealed at 1050℃ for 30 minutes, then water-quenched to dissolve carbide precipitates. This process enhances corrosion resistance by stabilizing the microstructure, critical for CF8M’s chloride resistance.
Precision Machining: Ball and seat surfaces are CNC-ground to a surface finish of Ra ≤0.8μm, ensuring uniform contact with PTFE seals. Flange faces are machined to ANSI B16.5 tolerances, ensuring compatibility with standard gaskets and mating flanges.
Seal Assembly: PTFE seats are compression-molded to match ball contours, then pre-loaded into the valve body to maintain contact pressure. This pre-loading compensates for temperature-induced expansion/contraction, ensuring consistent sealing across operating ranges.
Testing & Inspection:
- Hydrostatic Test: The valve body is tested at 3.0MPa (1.5×150LB) for 30 minutes; seats are tested at 2.2MPa (1.1×150LB) to verify zero leakage.
- Operational Test: 100+ open/close cycles with manual operation to ensure smooth movement and consistent sealing.
- Material Verification: Spectral analysis confirms CF8M’s chemical composition (18Cr-12Ni-2.5Mo), validating corrosion resistance claims.

Valve Details

V. Product Advantages

Broad Chemical Compatibility: CF8M and PTFE combinations resist most industrial media, from tap water to aggressive chemicals like sulfuric acid and acetic acid, eliminating the need for multiple valve types in mixed environments.
Low Maintenance Requirements: Flange connections simplify disassembly for seal replacement; PTFE’s low friction reduces wear on ball and seats, extending service life to 10,000+ cycles in standard conditions.
Cost-Effective Performance: The floating design reduces manufacturing complexity compared to trunnion valves, offering reliable sealing at a lower cost for 150LB applications—ideal for budget-conscious projects without compromising quality.
Hygienic Compatibility: PTFE’s non-toxic, smooth surface and CF8M’s resistance to bacterial growth make the valve suitable for food, beverage, and pharmaceutical industries, complying with FDA standards for media contact.
Global Standard Compliance: Adherence to ANSI, API, and JIS standards ensures seamless integration into international pipelines, from North American water treatment plants to Asian chemical facilities.

Application

VI. Product Applications

Water Treatment & Desalination: Controls flow in municipal wastewater systems, reverse osmosis plants, and coastal water intake lines. CF8M resists chlorine-induced corrosion; PTFE avoids water contamination.
Petrochemical & Refining: Manages light oil, gasoline, and mild chemicals in storage terminals and transfer lines. Anti-static and fire-safe options meet hazardous area regulations for flammable media.
Food & Pharmaceutical Processing: Regulates flow in beverage bottling lines, sterile water systems, and drug manufacturing. PTFE seals and CF8M surfaces prevent media contamination and are easy to clean.
HVAC & Industrial Heating: Controls steam and hot water flow in commercial building heating systems and factory boiler loops. PTFE seals withstand thermal cycling without degradation.
Marine & Coastal Infrastructure: Handles seawater cooling, ballast water, and deck washdown systems on ships and offshore platforms. CF8M’s chloride resistance prevents corrosion in saltwater environments.

TIANYU ANSI 150LB CF8M floating ball valve: 1/2″~10″, -29~180℃, PTFE seals, flange connections. For water, chemicals, food. Customizable: RTJ flanges, electric actuators, full bore. Combines CF8M corrosion resistance with PTFE sealing—reliable, low-maintenance for diverse industrial pipelines.