Home » Product Category » Ball Valve » Trunnion Ball Valve » SPE ✖️ DPE Double Block Bleed Type B Trunnion Ball Valve

Product Category

SPE ✖️ DPE Double Block Bleed Type B Trunnion Ball Valve

The SPE ✖️ DPE Double Block and Bleed (DBB) Type B Trunnion Ball Valve is an elite-grade pipeline isolation solution engineered for critical oil and gas transmission systems where zero leakage and maximum operational safety are mandatory.

Model:
Q347F-900LBC
Brand:
DIDTEK
Code:
TRBV-FTBV-057

Availability:

Quantity:



Inquire

SPE DPE Trunnion Ball Valve double block and bleed ball valve Type B Trunnion Ball Valve API 6D DBB Ball Valve Manufacturer Bi-directional Sealing Ball Valve

Product Description

Product Parameters

Parameters

Application

Product Detail

The SPE ✖️ DPE Double Block and Bleed (DBB) Type B Trunnion Ball Valve is an elite-grade pipeline isolation solution engineered for critical oil and gas transmission systems where zero leakage and maximum operational safety are mandatory. Featuring a robust trunnion-mounted design, this valve uniquely integrates SPE (Single Piston Effect) and DPE (Double Piston Effect) seat configurations (Type B). An SPE seat utilizes line pressure to push the seat against the ball (providing self-relieving cavity overpressure protection), while a DPE seat utilizes pressure from both the line and the body cavity to ensure bi-directional sealing. Combined with an intermediate bleed (drain) port, this valve achieves true Double Block and Bleed functionality, allowing operators to verify seal integrity and vent trapped pressure safely.

Product Parameters

Parameter Name	Parameter
Size Range	12''X10''
Pressure Range	1500LB
Material	A105N
Seal	Soft Seat: SS316+Graphite
Temperature Range	-29°C~95°C
Design According	API 6D
Face to Face	ASME B16.10
End Flanges	ASME B16.5
End Connection Type	RTJ
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 and some corrosive liquid

Design Description

SPE/DPE Hybrid Seat Configuration (Type B): Upstream seat typically acts with Single Piston Effect (self-relieving cavity pressure), while the downstream seat acts with Double Piston Effect, providing an extra layer of redundant isolation safety.
True Double Block and Bleed (DBB): Isolates the flow from both inlet and outlet ends simultaneously when the ball is closed, allowing the body cavity to be bled or drained safely via the test valve.
Automatic Cavity Relief (SPE Feature): Prevents dangerous overpressure inside the body cavity due to thermal expansion of trapped liquid, ensuring operational safety.
Trunnion-Mounted Rigidity: Fixed-ball structure handles massive pipeline loads and high differential pressures with minimal operating torque.

Parameters

Brand	DIDTEK
Structure	Trunnion Ball
Material	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

SPE ✖️ DPE Double Block Bleed Type B Trunnion Ball Valve are widely utilized in demanding environments due to their superior material properties:

Long-Distance Oil & Gas Transmission Pipelines: Mainline isolation stations requiring verified zero-leakage DBB capabilities.
Terminal Storage & Metering Stations: Tank farm manifold isolation and custody transfer metering skids.
Offshore Production Platforms: Critical topside gas and crude oil processing lines.