Double Triple Eccentric /Offset Double Flange High Performance Butterfly Valve

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3-Offset Metal Seat Butterfly Valve

GZP 3-offset butterfly valves are manufactured and modified to the latest edition of API609, BS5155, ASME B 16.34 .And passed the fire resistance inspection standards of API 607, API6FA and BS6755.All valves from GZP valves are strictly 100% tested before shipment to guarantee zero leakage.

Features & Benefits

Bi-directional tightness, 1.1 times in flow side pressure and 1.0 times in reversed flow side pressure for size DN80~DN600 and pressure rating PN6~PN40.

Firesafe Certified to API 607 4th edition BS6755 Part 2 and API 6FA Sizes 3'' (80mm) to 96'' (2500mm)

Anti-blowout stem Internal is standard External to API 609 optional

Triple Offset Geometry Provides non-rubbing motion throughout full 90˚ rotation eliminating unnecessary wear and prolongs life of seat and seal.

Pressure ratings ANSI 150 through 300 Ib.Zero leakage Bi-directional shut-off to API 598, Zero Leakage Capability.

Ease of maintenance Field replaceable seat and seal ring reduces maintenance costs.Bearing protectors Bearing protectors are available for the more arduous duties. Live loaded packing Is available as an option.

Quality assurance system Approved by ISO 9001, CE and API 6D

Operators Valves can be supplied with manual, electric, pneumatic or hydraulic actuators.

Fail-safe systems for emergency operation are also available.

Technical data
Design	API609, BS5155,ASME B 16.34,DIN3354,
Face to Face	ASME B16.10,EN 558,DIN 3202
Pressures range	ANSI 150 ~ANSI 900 ,PN6~PN150
Size range	DN80(3") ~DN2500 (96")
Body Material	Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel.etc.
	NACE MR-01-75/NACE MR-01-03 Special Requirements
Face to Face	ASME B 16.10,EN 558,DIN3202
Fange,Wafer,Lug Ends	ASME B16.5 ≤ DN600 (24") ASME B16.47 A ≥ DN650 (26")
	BS 4504,DIN 2543-2545,EN1092
Butt-Weld BW Ends	ASME B16.25 ,DIN 3239,BS 2080, EN 12627
Temperature range	-196°~ 600°C
Design Feature
Construction	Triple offset type
Disc Type	oval-shaped
Seat Sealing	Metal seat ,soft seat ,double sealing performance.
Valve Operation	Gear, pneumatic,Hydraulic,Electric actuators.
	By pass,locking devices,extended stem,etc
Fire Safe Design	API 607, API6FA ,BS6755
Inspection and Test
Visual Inspection	MSS SP55
Material Inspection	PMI Test----Chemical Analysis
	HB Test---Hardness Test
	UT---Ultrasonic Test
	RT---Radio-graphic Test
	MT---Magnetic Test
	NDT Test Non-destructive
Dimension inspection	According to drawings
Valve Inspection and Test	API 598,DIN 3230,EN 12266,BS 5146

What is the difference between double offset and triple offseat butterfly valves?

The main difference between a double and triple offset valve is the number of offset shafts; a triple offset valve has three.

Two of the offsets are placed in a similar position to the double offset butterfly valve, while the third offset is the geometry of the seating surface, creating a type of cone shape of the disc and seat.

The triple offset butterfly valve is used in similar industries as the double but more demanding applications.

Why use a triple offset butterfly valve?

A triple offset butterfly valve is used in applications where a metal seat is required. A tight shut-off/on or a quarter turn actuation is desired, including high temperature and high-pressure applications.

We have promoted enterprise technology innovation and improved the overall technology level of the Double Triple Eccentric /Offset Double Flange High Performance Butterfly Valve industry. We firmly believe that we are trustworthy because we are dedicated. We will repay the trust and support of our users with high-quality products, preferential prices and zero-distance services! In the whole process of service, we always take customer satisfaction as the goal pursuit, pay attention to detail innovation, and pursue the service realm beyond customer satisfaction.

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