Crane Flowseal 8" Soft Seal Butterfly Valve with Belimo Actuator SY4-24MFT

Figure Number 08-3DA-120RTG-B0J

08 - Size - 8"
3 - Body Class - ASME 300
D - Body Type - Lugged DDES, (Double Dead End Service)
A - Shaft Design - Straight
1 - Body Material - Carbon Steel
2 - Disc Material - 316 SS
0 - Shaft Material - Nitronic 50
R - Seat Material - RTFE/Silicone R, (RTFE/Silicone combination is not to be used with "NACE" valves)
T - Packing Material - TFE
G - Bearing Material - Garfil (Glass Backed TFE)
B - Actuator Type - Bare Shaft
0 - Special Feature - None
J - Series - Factory Assigned

The Flowseal Soft Seat valve provides a bi-directional bubble tight shutoff (zero leakage) by the use of a patented seat. This unique seat design creates a self-energized seal in vacuum to-low pressure applications.

Under higher pressure conditions, the seat is also designed to permit, confine and direct movement of the soft seat against the disc edge, up to the full ASME Class 150, 300 and 600 Cold Working Pressures.

The Soft Seat is designed for high services with minimal wear and low torque. Seat replacement is a simple operation, requiring no special tools.

Valve Design
  1. The Flowseal High Performance Butterfly Valve features a double offset (or, double eccentric) shaft design to minimize seat abrasion and lower torque. This double offset design allows the disc to lift off and come away from the seat as it rotates open.
  2. The Flowseal valve always rotates clockwise to close (when viewed from above) and counterclockwise to open
  3. The valve body has an overtravel stop which prevents the disc from over rotating into the wrong quadrant. This stop is not to be used as a disc position stop; if the disc contacts the overtravel stop, this means it has rotated beyond the seat.
  4. The Flowseal valve is bi-directional, but the preferred installation position is with the seat in the upstream position (SUS). Note the arrow on the metal tag attached to the valve body.

Gasket Compatibility

The Flowseal valve is designed to accommodate the use of standard fiber gaskets (such as non-asbestos, flexible graphite, or equivalent gasket materials) of 1/16" or less, meeting the dimensional requirements of ASME B16.21–1978. Thick elastomeric gaskets are not recommended. Metallic wound (Flexitallic) gaskets may also be used.

Product Identification
  1. Every Flowseal valve has a metal identification tag attached to the valve body. Information includes the figure number, the size and pressure class, the materials of construction, and the operating pressures and temperatures.
  2. Every Flowseal valve is hydrostatically tested before it is shipped. The metal tag also includes a serial number; this number, unique for each valve, is recorded by the Flowseal Quality Control Department along with the test results and material certification data, for individual traceability and verification of every valve produced.
Belimo Actuator SY4-24MFT

Description

The patented gear drive mechanism provides for efficient, smooth operation while allowing easy manual override at any time. Drawing upon years of experience in the actuation industry, we have incorporated the most desirable features into the SY product range.

All units have NEMA 4X ratings, easily visible position indicators, international standard ISO5211 mounting systems, internal thermal motor overload protection, heater, dual auxiliary Form C switches, and easily accessible wiring termination points. Wiring diagrams, included in all printed documentation, are also affixed to the outside of the housing on the permanently attached product label.

The SY actuators are NEMA 4X rated and designed to meet the needs of HVAC and Commercial applications. Offered on Belimo standard and high performance valve series, these actuators are available for on/off and modulating applications.

Hand Wheel Override
Electrical connection: ½” conduit connector, screw terminals
Motor protection: H Class insulation (SY-1), F Class (SY-2…5)
Gear train: high alloy steel gear sets, self locking
Operating range: (SY…-24) on/off, floating point, (SY...24MFT) 2-10 VDC, 4-20mA, 0-10 VDC
Sensitivity: (SY…24MFT) 0.4mA/200mV
Reversal hysteresis: (SY…24MFT)1.0mA/500mV
Feedback: (SY…24MFT) 2-10 VDC
Angle of rotation: 90°
Direction of rotation: reversible
Position indication: top mounted domed indicator
Internal humidity control: resistive heating element
Auxiliary switches: (2) SPDT, 10A 250 VAC, factory set for 5° and 85° change of state
Ambient temperature: -22°F to +150°F [-30°C to +65°C]
Humidity range: up to 95%
Housing type: IP67, NEMA 4X
Housing material: die cast aluminum alloy
Agency listings: ISO, CE, cCSAus

Technical Data

Electrical connection: ½” conduit connector, screw terminals
Motor protection: H Class insulation (SY-1), F Class (SY-2…5)
Gear train: high alloy steel gear sets, self locking
Operating range: (SY…-24) on/off, floating point (SY...24MFT) 2-10 VDC, 4-20mA, 0-10 VDC
Sensitivity: (SY…24MFT) 0.4mA/200mV
Reversal hysteresis: (SY…24MFT)1.0mA/500mV
Feedback: (SY…24MFT) 2-10 VDC
Angle of rotation: 90°
Direction of rotation: reversible
Position indication: top mounted domed indicator
Internal humidity control: resistive heating element
Auxiliary switches: (2) SPDT, 10A 250 VAC factory set for 5° and 85° change of state
Ambient temperature: -22°F to +150°F [-30°C to +65°C]
Humidity range: up to 95%
Housing type: IP67, NEMA 4X
Housing material: die cast aluminum alloy
Agency listings: ISO, CE, cCSAus

Specifications

Actuator Type: On/Off 
Fail Safe Mode: Non-Spring Return 
Power Supply: 24 VAC/DC 
Torque: 3560 lb-in
Power Consumption: 6.0A
Rotation: Reversible
Auxiliary Switch: 2 SPDT

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