Home » Product Category » Ball Valve » Trunnion Ball Valve » LF2 Three Pieces Body Trunnion Ball Valve With Spring Energized Sealing

Product Category

LF2 Three Pieces Body Trunnion Ball Valve With Spring Energized Sealing

The LF2 Three-Piece Body Trunnion Ball Valve with Spring Energized Sealing is a heavy-duty, high-integrity industrial isolation valve engineered for extreme operating conditions, including low-temperature environments and high-pressure transmission lines.

Model:
Q347F-300LBL
Brand:
DIDTEK
Code:
TRBV-FTBV-053

Availability:

Quantity:



Inquire

LF2 Trunnion Ball Valve Three Piece Body Ball Valve Spring Energized Sealing Ball Valve Low Temperature Carbon Steel Valve API 6D Trunnion Ball Valve Manufacturer

Product Description

Product Parameters

Parameters

Application

Product Detail

The LF2 Three-Piece Body Trunnion Ball Valve with Spring Energized Sealing is a heavy-duty, high-integrity industrial isolation valve engineered for extreme operating conditions, including low-temperature environments and high-pressure transmission lines. Fabricated from forged ASTM A350 LF2 low-temperature carbon steel, the valve offers certified impact toughness down to -46℃. The robust three-piece split-body design provides exceptional structural rigidity and eases internal maintenance. Equipped with an advanced Spring-Energized Sealing system, the valve utilizes high-performance metal springs to energize the seat against the ball, ensuring bubble-tight shut-off across dynamic pressure ranges—from high differential pressure down to zero pressure.

Product Parameters

Parameter Name	Parameter
Size Range	10''
Pressure Range	300LB
Material	LF2
Seal	Soft Seat: PEEK
Temperature Range	-40°C~200°C
Design According	API 6D
Face to Face	ASME B16.10
End Flanges	ASME B16.5
End Connection Type	RF
Fire Safety	API 607
Inspection and Test	API 598
Operate	Worm Gear
Body Type	Split Body
Type of Valve	Trunnion Ball Valve
Suitable Medium	Water, Steam, Oil etc

Design Description

LF2 Low-Temperature Forged Body: Provides high yield strength and superior low-temperature impact resistance, preventing brittle failure in cold-climate oil and gas applications.
Three-Piece Split-Body Rigidity: Engineered for large-scale or high-pressure piping, the three-piece bolted construction ensures maximum mechanical strength and simplifies on-site servicing.
Spring-Energized Seat Mechanism: High-integrity metal springs behind the seat insert provide constant mechanical loading, guaranteeing reliable initial sealing even under low-pressure or vacuum conditions.
Trunnion-Mounted Stability: Fixed-ball design absorbs high pipeline thrusts and drastically minimizes operating torque, making it ideal for automated actuation.

Parameters

Brand	DIDTEK
Structure	Trunnion Ball
Material	Low Temperature Carbon Steel
Type	Forged Ball Valve
Test	100% quantity tested before delivery
Guarantee	18 months after shipments and 12 months after installed
Delivery	15 - 60 days
Sample	Sample Available by Didtek Valve
Color	Customer request
Packing	Plywood Case
MOQ	1 Set
Certificate	API6D, CE, UKCA, ISO9001, TS, EAC, ISO15848, TA-LUFT, API607, API6FA etc.
Place of Origin	Zhejiang, China (Mainland)
Delivery Detail	Shipped in 15-30 days after payment
Port	Shanghai Or Ningbo
Payment Terms	L/C,D/A,D/P,T/T, Western Union

Application & Function

LF2 Three Pieces Body Trunnion Ball Valve With Spring Energized Sealing are widely utilized in demanding environments due to their superior material properties:

Cold-Climate Gas Transmission: High-pressure natural gas pipelines operating in sub-zero winter environments.
Petroleum Storage & Terminal Facilities: Tank farm main isolation and high-pressure manifold lines.
Upstream Oil & Gas Extraction: Onshore and offshore wellhead gathering stations handling high-pressure hydrocarbons.