Ball Valves

LPA13/14 Three Way Floating Soft Seat Ball Valve

LPA13 Flanged / LPA14 Threaded Three-Way Floating Soft-Seated Ball Valve, a three-way floating ball valve with L-port or T-port ball configuration, pressure-assisted soft-seat sealing, blowout-proof stem, anti-static device, and low-torque quarter-turn operation, enabling flow switching, mixing, or diverting with bubble-tight shutoff in multi-directional piping systems.

Product Description

This three-way floating soft-seated ball valve provides versatile flow control for switching, mixing, or diverting media in process piping. The floating ball shifts under line pressure against the downstream resilient seat rings, forming a self-energizing seal that ensures bubble-tight shutoff per API 598 / EN 12266-1 Rate A on each active port.

The L-port (90°) ball directs flow between two perpendicular outlets, while the T-port (180°) ball allows mixing, splitting, or three-way through flow. Soft seats in PTFE, reinforced PTFE, PEEK, Nylon, or POM cover temperatures from −29 °C to +260 °C.

Body construction is two-piece or three-piece in carbon steel (WCB) or stainless steel (CF8 / CF8M). End connections include threaded (NPT / BSPT / BSP), flanged (ASME B16.5 / EN 1092-1). Sizes range from DN 15 (1/2″) to DN 300 (12″).

The stem is blowout-proof and sealed with PTFE packing and an O-ring secondary seal. An anti-static device maintains ball-to-body electrical continuity. An ISO 5211 top pad accepts direct-coupled actuators or manual levers. Every valve is 100 % tested: shell at 1.5 × PN, seat at 1.1 × PN.

Key Features

L-port & T-port configurations – L-port for 90° flow switching between two directions; T-port for mixing, splitting, or straight-through three-way flow.
Pressure-assisted soft-seat sealing – Floating ball self-energizes against seat rings under line pressure, achieving zero-leakage shutoff on each active port.
Multi-position operation – Quarter-turn between positions provides up to four flow patterns (L-port) or five flow patterns (T-port) with a single valve, reducing piping complexity.
Low operating torque – Lapped ball surface and low-friction seat materials minimize torque for easy manual or automated operation.
Blowout-proof stem – Internally retained stem prevents ejection under full line pressure.
Anti-static device – Spring-loaded plungers maintain ball-stem-body continuity, preventing spark ignition in flammable media.
Wide seat material range – PTFE, RPTFE, PEEK, Nylon, POM cover chemical, water, gas, and mild temperature services.
Multiple end connections – Threaded, flanged, or welded ends suit diverse installation requirements.
ISO 5211 actuator mounting – Standardized top pad accepts pneumatic or electric quarter-turn operators.
100 % factory tested – Hydrostatic shell and seat tests per API 598; material certificates available.

Typical Applications

Flow direction switching in oil, gas, and chemical transfer lines
Mixing or blending of two media into a common outlet
Diverting one inlet flow to two downstream destinations
Sampling, venting, and bypass configurations
Compressed air and water distribution manifolds
Food, beverage, and pharmaceutical CIP/SIP systems

Specifications

Valve Size:
NPS1/2 - NPS12;
DN15 - DN300
Pressure Class:
ASME Class 150, Class 300;
DIN PN10, PN16, PN25, PN40, PN63
Operating Temperature:
-46 to +260 °C / -50 to +500 °F
Process Connection Type:
Flanged, Threaded
Valve Bonnet:
Standard
Stem Seal:
Adjustable Packing
Seat Leakage:
Class VI (FCI-70.2) Standard Leakage Rates, soft seating Class VI-Bubble tight (Zero Leakage)
Flow Characteristics:
Quick Open
Critical Service:
Corrosive, General Service, Chemical, Pharmaceutical, Steam, Chlorine, Oxygen, Vacuum, Low Temperature
Valve Actuator:
Electric, Hydraulic, Pneumatic, Lever, Gear, Electro-Hydraulic
Valve Accessories:
Pneumatic Positioner, Electro Pneumatic Positioner, Limit Switch, SOV, Air lock relay, Volume Booster, AFR, Position Transmitter
Certifications:
PED, ATEX, SIL capable, Fugitive Emission
Media:
Specialty Gases, Liquids, Air, Inert Gas, Water
Other Configurations:
Contact your local Lapar business partner or sales office to learn about additional specifications or options for this product.