3 Piece Flange Double Block&bleed Ball Valve
3 Piece Flange Double Block&bleed Ball Valve, which design with 3 pieces forged body and apply flange to connect with pipe. Through forging proceduce, the steel is of more excellent performance, stronger impulse endurance and better corrosive resistance. 3-piece body structure is convenient to daily maintain and replace the internal part of ball valve.
VALVE DESIGN
API 6D, API 6A, ASME B16.34, ISO 14313, ISO 10423, ISO 17292
TEMPERATURE RANGE
-58 to 392°F (-50 to 200°C)
SIZE
NPS 1-12 (DN 25-300)
PRESSURE RATING
ASME 150 - ASME 2500
FACE-TO-FACE
As per API 6D standard
END CONNECTIONS
Flange
MATERIALS
Low Temperature and Low Alloy Carbon Steel
Stainless steel, Duplex and Super Duplex
Nickel alloys, Titanium
BODY DESIGN
Forged and casting bolted two-piece and three-piece
SEAT DESIGN
Soft or metal seated with Hard facing on ball and seats
Double piston seats
Combination seats
FEATURES
Double block and bleed design (DBB)
Secondary seals in pure Graphite
Anti-Static Device
Anti Blow out stem
Emergency sealant injection on seats and stem available
Low fugitive emission stem packing available
O-ring /Lip seals and Graphite configuration
CRA overlay on all dynamic sealing areas or on all wetted parts available
Extended bonnet for low & high temperature available
OPERATOR
Manual: wrench or Gear with padlocking
Actuated: Pneumatic/Electric
TESTING & CERTIFICATIONS
Compliance with API 6D & ISO 5208 & API 598 inspection and testing
Fire safe and fire tested as per API 607
SIL 3 Certification as per IEC61508
Fugitive Emission as per ISO15848
PED 2014/68/UE
FAQ
Q: What are the differences between Forging body and Casting body?
A: Forging body：Through forging machine to put the pressure on material, steel is formed under the high pressure and temperature, which can make forging steel with porelessness and looseness. Casting body：Pull the melted steel into mould, cool and solidify. Under casting procedure, the body will exist sand holes or internal defects. Mechanical property: Forging body: excellent mechanical performance: stronger strength, greater tolerance. Application: The forging body is more suitable in high pressure and temperature working condition. The casting body is more suitable in middle pressure and temperature working condition.
Q: What are the advantges of 3-piece body structure?
A: 3-piece body ball valve has long pattern F-to-F dimension. Through bolting, we fastner the 3 pieces body. Thank to this type structure, we are convenient to repair or maintain it. It's easy to replace the one of internal part of valve. If your pipe is compact, platinum valve team recommend the integral body. Integral body structure is of short pattern and less connection points, which greatly promote the sealing performace of ball valve.
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