Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D
Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D - Image 2
Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D - Image 3
Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D - Image 4
Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D - Image 5
Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D - Image 6
Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D - Image 7
Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D - Image 8
Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D - Image 9
Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D - Image 10

Floating Ball Valve NPS 4″ Class 600 RF 3P | F316/316/PTFE | API 6D

Precision NPS 4″ Class 600 2-Piece Floating Ball Valve in F316 with 316 ball and PTFE soft seat. API 6D / ASME B16.34 compliant, bi-directional bubble-tight shutoff.

Technical Specifications
Size 4″
Pressure Class Class 600
Body Material F316
Connection End RF
SKU: FBV-F316_316_PTFE-600-RF-4-3P Category: Brand:

Description

The NPS 4″ Class 600 2-Piece Floating Ball Valve (F316 / 316 / PTFE) is a high-integrity quarter-turn isolation valve engineered by XIAMEN GUTE VALVE MANUFACTURING COMPANY in strict compliance with API 6D / ASME B16.34. Specifically tailored for power generation auxiliary steam lines, chemical process reactors, and general industrial fluid isolation (NPS 4″ F316), this valve utilizes an optimized floating ball architecture that guarantees low operating torque and dependable bubble-tight shutoff across demanding process parameters.

Technical Specification Matrix (FBV-F316_316_PTFE-600-RF-4-3P)

Nominal Size / Bore NPS 4″ (Full Port / Reduced Port Configuration)
Pressure Rating / Class Class 600
Design & Manufacturing Standard API 6D / ASME B16.34
Face-to-Face Dimension ASME B16.10
End Connection Topology ASME B16.5 RF
Pressure Boundary Metallurgy ASTM A182 F316 Forged Austenitic Stainless Steel
Ball & Seat Trim Elements Solid Grade 316 Precision Ground Ball with PTFE Resilient Soft Seat
Shutoff Tightness Verification API 598 / API 6D Zero-Leakage Bidirectional
Traceability & Material Mandate EN 10204 3.1 Mill Test Certificate & 100% PMI XRF Spectro Verification

Engineering & Structural Architecture (NPS 4″)

  • Pressure-Assisted Floating Kinematics: Under line pressure, the unconstrained spherical ball translates slightly downstream to press firmly against the resilient PTFE seat insert, ensuring that sealing performance scales positively with line pressure.
  • Internal Blowout-Proof Stem: The stem features an integral mechanical shoulder installed from inside the body cavity, guaranteeing that internal pressure cannot eject the stem during operational spikes or maintenance.
  • Anti-Static Continuity Design: Spring-loaded grounding plungers positioned between the ball, stem, and body safely eliminate electrostatic accumulation caused by high-velocity fluid friction.
  • ISO 5211 Direct Automation Pad: Precision-machined top flange adheres to ISO 5211 standards, enabling direct, bracketless mounting of pneumatic or electric quarter-turn actuators.

Quality Assurance & NDT Protocols

  • 1. 100% Positive Material Identification (PMI): Spectro XRF chemical composition testing on every F316 pressure casting per ASTM E1476.
  • 2. Hydrostatic Shell & Seat Testing: 100% factory pressure tests verifying zero leakage per API 598 / API 6D Zero-Leakage (Shell tested at 1.5x CWP).
  • 3. Full Compliance Documentation: Traceable MTRs supplied with every shipment.

Frequently Asked Technical Questions (NPS 4″ F316)

Q: How does the floating ball mechanism achieve bubble-tight shutoff in NPS 4″ F316 configurations?

A: In this NPS 4″ 2-piece design, the unconstrained ball translates slightly downstream under line pressure, compressing uniformly against the resilient PTFE seat ring to establish a positive mechanical seal.

Q: Is model FBV-F316_316_PTFE-600-RF-4-3P equipped with anti-static grounding and blowout-proof features?

A: Yes. Spring-loaded anti-static plungers provide continuous electrical continuity between the ball, stem, and body, while the internal shoulder stem architecture prevents blowout under accidental overpressure.

Need Technical Drawings or an RFQ Proposal?

Our valve engineering team provides certified dimensional general arrangement (GA) drawings, torque sizing calculations, and formal commercial quotations.

Proven in Severe Service: See how Gute's engineered flow equipment operates in major global applications in our Industrial Project References or explore technical selection criteria and material standards in our Technical Knowledge Base.

Additional information

Material

Pressure

Valve Size

Connection

Design Standard

API Standard
Size

NPS 4″
Pressure Class

Class 600
Body Material

F316
End Connection

RF
Face to Face

ASME B16.10
Inspection Standard

API 598 / API 6D
Manufacturer

XIAMEN GUTE VALVE MANUFACTURING COMPANY
Design Structure

3-Piece
Ball Material

316
Seat Material

PTFE

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