Motorized Triple offset Double Flange Butterfly Valve

Valve Type Triple Offset Butterfly Valve
Nominal Size DN200 (8 Inch) or as specified
Pressure Rating Class 150 (PN20) or Class 300 / PN optional
End Connection Double Flange (to ASME B16.5 or EN 1092-1)
Operation Motorized Actuator

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Motorized Triple Offset Double Flange Butterfly Valve

Technical Data Sheet
(Typical Size: DN200 / Class 150 – can be customized)

General Information

Item	Popis
Typ ventilu	Triple Offset Butterfly Valve
Jmenovitá velikost	DN200 (8 Inch) or as specified
Jmenovitý tlak	Class 150 (PN20) or Class 300 / PN optional
End Connection	Double Flange (to ASME B16.5 or EN 1092-1)
Operace	Motorizovaný pohon
Aplikace	Bi-directional tight shut-off, frequent operation, high temperature / high pressure / corrosive media, steam, oil, natural gas, etc.

Design & Manufacturing Standards

Norma	Popis
Design Code	API 609 (Category B – Triple Offset)
Flange Dimensions	ASME B16.5 Class 150 / 300 or EN 1092-1 PN10/PN16/PN25/PN40
Face-to-Face Dimension	API 609 (short or long pattern) or EN 558 Series 13 / 14
Pressure-Temperature Rating	ASME B16.34
Top Flange	ISO 5211 (for direct actuator mounting)
Inspection & Testing	API 598
Leakage Rate	API 598 Rate A / ISO 5208 Rate A (Zero leakage)
Fire Safe Design	API 607 / ISO 10497 (optional)

Main Materials (Typical – can be customized)

Component	Standard Material	Optional Materials
Tělo	Carbon Steel (WCB)	Stainless Steel CF8M, CF3M, Duplex SS, Alloy Steel
Disk	Stainless Steel CF8M	Duplex SS, Hastelloy, Nickel-Aluminum Bronze
Zastavit	17-4PH Precipitation Hardening SS	Inconel, Monel, Duplex SS
Seat Sealing Surface	Stellite hardfacing	Nickel-based alloy, Tungsten Carbide
Seal Ring	Multi-layer metal + graphite	All-metal seal, PTFE (low temperature)
Packing	Flexible graphite + SS spacer rings	PTFE + graphite, low emission packing
Fasteners	Stainless Steel A193 B8	Alloy Steel B7
Gaskets	Flexible graphite + SS spiral wound	Metal ring gasket

Outline Dimensions & Weight (Typical – DN200 Class 150)

Dimension Parameter	Value (Short pattern, API 609)
Face-to-Face Length L	Approx. 152 mm (DN200 Class 150 short)
Flange Outer Diameter D	Approx. 345 mm (ASME B16.5 Class 150)
Bolt Circle Diameter K	Approx. 298 mm
Flange Thickness C	Approx. 29 mm
Number / Diameter of Bolt Holes	12 × 25 mm
Center Height (flange face to center)	Approx. 108 mm
Overall Height (excluding actuator) H	Approx. 450 mm
Valve Weight (excluding actuator)	Approx. 85 kg
Electric Actuator Weight (reference)	Approx. 25 – 50 kg (depending on torque and brand)

Dimensions above are typical references. Final dimensions to be confirmed with manufacturer’s drawing.

Pressure-Temperature Rating (ASME B16.34 – WCB body)

Temperature (°C)	Max. Working Pressure (bar) – Class 150	Max. Working Pressure (bar) – Class 300
-29 ~ 38	19.6	51.1
100	17.6	46.6
150	15.3	44.8
200	13.2	41.9
250	11.2	39.5
300	9.2	37.1
350	7.5	34.1
400	5.5	30.2
425	4.4	26.8

Stainless steel bodies offer slightly different ratings. Refer to material pressure curves for details.

Performance Data

Parametr	Value
Jmenovitý tlak	Class 150 / 300 (as required)
Shell Test Pressure (water)	Class 150: 29 bar; Class 300: 76 bar
Seat Test Pressure (water)	Class 150: 21 bar; Class 300: 56 bar
Low-Pressure Air Seat Test	6 bar
Allowable Differential Pressure (bi-directional)	Full rated pressure
Leakage Rate	Zero leakage (metal seated, API 598 Rate A)
Temperature Range (standard metal seal)	-29°C ~ +425°C
Suitable Media	Water, steam, oil, natural gas, corrosive media, etc.
Max. Operating Torque (DN200 Class 150)	Approx. 200 – 350 N·m (on-off, with gearbox)

Electric Actuator Specification (Reference)

As electric actuators vary by brand and control requirements, below is a typical configuration recommendation:

Parametr	Typical Value
Actuator Type	Quarter-turn electric actuator
Mounting Flange	ISO 5211 F14 or F16 (depending on torque)
Max. Output Torque	Based on valve torque + safety factor (DN200 Class 150 approx. 400–600 N·m)
Power Supply	380V / 3Ph / 50Hz or 220V / 1Ph
Control Type	On-Off or Modulating (4-20mA)
Enclosure Protection	IP67 (outdoor type)
Explosion Proof (optional)	Ex d IIB T4 (flameproof)
Accessories	Limit switches, torque switches, heater, local/remote control

Klíčové vlastnosti

Triple offset design – No friction during opening/closing; long service life, low torque
Double flange connection – Can be independently installed between pipeline flanges; easy maintenance; suitable for large bore and high pressure
Bi-directional zero leakage – Metal hard seal for high temperature, high pressure, corrosive and abrasive media
Motorized actuation – Enables remote on/off, local operation, and signal feedback for automated systems
Low operating torque – Lower than conventional hard-seal butterfly valves; allows more economical actuators
Fire safe design (optional) – Compliant with API 607

Ordering Information

Please provide the following when ordering:

Valve size, pressure rating (Class or PN)
Body, disc, and seat materials
Flange standard and face-to-face standard
Media name, temperature, and pressure
Electric actuator power supply, control type (on-off/modulating), protection/explosion-proof rating
Special requirements (fire-safe, low emission packing, third-party certification, etc.)

ZÁRUKA:

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