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Top Entry Single Acting Pneumatic LF2 Ball Valve

The Top Entry Single Acting Pneumatic LF2 Ball Valve is a high-integrity automation solution designed for critical applications in cold climates and hazardous environments.

Model:
QT667-300LBL
Brand:
DIDTEK
Code:
TEBV TEBV-012

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Top Entry Ball Valve Single Acting Pneumatic Valve LF2 Low Temperature Valve Spring Return Actuated Ball Valve On-line Maintenance Valve

Product Detail

Product Parameters

Parameters

Application & Function

Product Detail

The Top Entry Single Acting Pneumatic LF2 Ball Valve is a high-integrity automation solution designed for critical applications in cold climates and hazardous environments. The Top Entry construction allows for full access to the ball, seats, and internal seals for maintenance or replacement without removing the valve body from the pipeline—minimizing downtime. Crafted from ASTM A350 LF2, it offers exceptional low-temperature toughness. Integrated with a single-acting (spring return) pneumatic actuator, the valve provides an automatic fail-safe response (Fail-Close or Fail-Open) in the event of power or air supply loss. A-12-DIDTEKTEBV - Top Entry Single Acting Pneumatic LF2 Ball Valve

Product Parameters

Parameter Name	Parameter
Size Range	16''
Pressure Range	300LB
Material	LF2
Seal	Soft Seat: RPTFE
Temperature Range	-46°C~121°C
Design According	API6D
End to End Dimension	ASME B16.10
End Flanges	ASME B16.25
End Connection Type	Butt Welded
Fire Safety	API607
Inspection and Test	API 598, ASME B16.34
Operate	Pneumatic
Body Type	Top Entry
Type of Valve	Trunnion Ball Valve
Suitable Medium	Water, Natual Gas, Oil and some corrosive liquid

Design Description

On-line Maintenance (Top Entry): The monolithic body with a bolted bonnet allows for internal parts servicing directly on the line—crucial for welded pipelines where removal is difficult.
Fail-Safe Reliability (Single Acting): Equipped with a heavy-duty spring-return pneumatic actuator that ensures the valve moves to a safe position during emergency shutdowns.
LF2 Low-Temp Resilience: Specifically heat-treated to maintain structural integrity and impact toughness in sub-zero environments as low as $-46^\circ\text{C}$.
Trunnion Mounted Stability: The fixed-ball design supports the load via trunnion bearings, ensuring low operating torque even at high pressures and preventing seat erosion.
Double Block and Bleed (DBB): Fully compliant with API 6D, allowing for independent upstream and downstream sealing and safe cavity venting.

Parameters

Brand	DIDTEK
Structure	Top Entry Trunnion Ball
Material	Aluminum-magnesium series anti-rust aluminum alloy
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

Top Entry Single Acting Pneumatic LF2 Ball Valve are widely utilized in demanding environments due to their superior material properties:

Arctic Oil & Gas Transmission: Mainline isolation where extreme cold makes field removal for maintenance impossible.
Gas Processing Plants: Automated ESD (Emergency Shut Down) valves in dehydration and sweetening units.
Offshore Platforms: Critical safety valves requiring fail-safe performance and easy deck-side maintenance.
LPG/LNG Auxiliary Systems: Handling temperature-sensitive hydrocarbon fluids with high reliability.