Swagelok SS-43GF4 1/4" 316 Stainless Steel 40G Series Ball Valve

Swagelok SS-43GF4 is a genuine, high-performance 1-piece 40G series instrument ball valve manufactured from 316 stainless steel. Designed for reliable on-off service, this valve features 1/4 in. female NPT end connections and is engineered to provide leak-tight sealing and dependable operation in a wide range of industrial fluid and gas systems.

As part of Swagelok's advanced 40G series, the SS-43GF4 incorporates improved sealing technology and enhanced thermal cycling performance compared to previous generations, making it ideal for applications requiring frequent temperature variations and consistent shut-off.

Key Features & Benefits

Superior Leak-Tight Performance: Features an innovative, patent-pending密封设计 that resists packing deformation and "cold flow," enhancing thermal cycling capability and providing improved leakage protection.

316 Stainless Steel Construction: Offers excellent corrosion resistance and durability, suitable for harsh environments and a wide variety of media.

Compact One-Piece Body: The design of Compact One-Piece Body minimizes potential leak paths and allows for installation in space-constrained systems.

Easy Online Packing Adjustment: Packing can be adjusted while the valve is in service, minimizing system downtime.

Direct Replacement for Original 40 Series: The 40G series is designed for easy replacement of original 316 stainless steel 41, 42, and 43 series valves, with identical dimensions and comparable construction materials.

Factory Tested: Each valve is factory-tested with nitrogen at 1000 psig (69 bar) or at its maximum rated pressure if below 1000 psig, with an allowable seat leakage rate of 0.1 std cm³/min.

Technical Specifications (SS-43GF4)

Specification Detail

Manufacturer Swagelok 

Part Number SS-43GF4 

Series 40G 

Product Type On-Off Valve, Straight Pattern 

Valve Configuration 2-Way, Straight Pattern (Ball Valve) 

Body Material 316 Stainless Steel 

Connection 1 Type Female NPT 

Connection 1 Size 1/4 in. 

Connection 2 Type Female NPT 

Connection 2 Size 1/4 in. 

Flow Coefficient (Cv) 0.9 

Orifice Size 0.187 in / 4.7 mm 

Packing Material Modified PTFE 

Handle Color Black 

Handle Type Locking Lever Handle (standard) 

Pressure Rating 2500 PSIG (172 bar) at 100°F (37°C); 2500 PSIG at 300°F (148°C) 

Temperature Range –65 to 300°F (–53 to 148°C) 

Cleaning Process Standard Cleaning and Packaging (SC-10) 

Ball/Stem Material Stainless Steel 

Lubricant Dow M111 

Applications

The Swagelok SS-43GF4 ball valve is suitable for a broad range of applications requiring reliable shut-off, including:

Process Instrumentation: Isolating pressure gauges, transmitters, and analyzers.

Industrial Fluid Systems: Controlling flow in sample handling, chemical injection, and general utility systems.

Power Generation: Used in instrumentation panels and auxiliary systems.

Oil and Gas: Suitable for natural gas sample systems and hydraulic control lines within pressure ratings.

Research and Development: Laboratory setups and pilot plants requiring compact, reliable flow control.

40G Series Advantages

The 40G series ball valves have been trusted in various industries for nearly 40 years . Swagelok refined the valve design and developed innovative assembly processes, resulting in:

Extended working temperature range.

Improved thermal cycling performance.

Reduced potential leak points.

Available configurations include 2-way, 3-way, 4-way, 5-way, and 7-way switching patterns with end connections ranging from 1/16 to 3/4 in. and 3 to 12 mm .

Ordering Information

The manufacturer part number for this 1/4" FNPT 316 stainless steel ball valve is SS-43GF4 . For purchasing, availability, and pricing, please contact your local authorized Swagelok sales and service center.

Important Note: Swagelok recommends never mixing Swagelok products with products from other brands to ensure system integrity and safety.

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