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This revolutionary aluminum diecast body butterfly valve is an extended model of our best selling 702Z.
The high performance engineering plastic top plate (patent pending) with aluminum diecast body can prevent dew-condensation and allow auto-actuation with the ISO top flange design.

Condensation Prevention Performance: No condensation is formed on actuator and its mounting flange under 34°C room temperature with 75% humidity on 5°C chilled water line.
series773z-500
773Z-dimensional-drawing
Unit of Measure
Items series773z-500
773Z-040
New Anti-condensation Aluminum Diacast Butterfly Valve Series 773Z
series773z-500
773Z-050
New Anti-condensation Aluminum Diacast Butterfly Valve Series 773Z
series773z-500
773Z-065
New Anti-condensation Aluminum Diacast Butterfly Valve Series 773Z
series773z-500
773Z-080
New Anti-condensation Aluminum Diacast Butterfly Valve Series 773Z
series773z-500
773Z-100
New Anti-condensation Aluminum Diacast Butterfly Valve Series 773Z
Size N/A 040 - 1-1/2" N/A 050 - 2" N/A 065 - 2-1/2" N/A 080 - 3" N/A 100 - 4"
Design Standard N/A JISB2032
Max.Working Pressure N/A 1.0 MPa
Working Temperature Range N/A EPDM -20 to +120° C
Working Temperature Range in Continuous Use N/A EPDM -10 to +100° C
Body Shell Test (Hydraulic) N/A 1.75 MPa
Seat Leak Test (Pneumatic) N/A 1.1 MPa
Actuator Mounting Flange N/A ISO 5211
Actuators N/A Double Acting Pneumatic Cylinder 3E Lock Lever Single Acting Pneumatic Cylinder Type 3F Single Acting Pneumatic Cylinder Type 3G Single Phase Electric Motor Worm Gear
Face to Face Dimensions N/A ISO 5752/JIS B2032
Surface Treatment - Body N/A Epoxy-Melanin Baked with Munsell 2.5BG 6/12
N/A 45 mm N/A 52 mm N/A 65 mm N/A 80 mm N/A 101 mm
Applicable Flange Standard N/A ANSI 125Lb/150Lb DIN PN10 JIS 5K/10K
JIS 5K Hexagon Bolts/Nuts N/A M12 N/A M12 N/A M12 N/A M16 N/A M16
JIS 5K Hexagon Bolts/Nuts Length N/A 75 mm N/A 90 mm N/A 90 mm N/A 95 mm N/A 105 mm
JIS 5K Effective Screw Hexagon Bolts/Nuts Length N/A 30 mm N/A 30 mm N/A 30 mm N/A 38 mm N/A 38 mm
JIS 5K Number of Hexagon Bolts/Nuts N/A 4 N/A 4 N/A 4 N/A 4 N/A 8
JIS 10K Hexagon Bolts/Nuts N/A M16
JIS 10K Hexagon Bolts/Nuts Length N/A 90 mm N/A 100 mm N/A 105 mm N/A 105 mm N/A 110 mm
JIS 10K Effective Screw Hexagon Bolts/Nuts Length N/A 38 mm
JIS 10K Number of Hexagon Bolts/Nuts N/A 4 N/A 4 N/A 4 N/A 8 N/A 8
JIS 5K Long Bolts and Nuts N/A M12 N/A M12 N/A M12 N/A M16 N/A M16
JIS 5K Long Bolts Length N/A 95 mm N/A 105 mm N/A 110 mm N/A 120 mm N/A 130 mm
JIS 5K Effective Screw Long Bolts Length N/A 25 mm N/A 25 mm N/A 25 mm N/A 30 mm N/A 30 mm
JIS 5K Number of Long Bolts N/A 4 N/A 4 N/A 4 N/A 4 N/A 8
JIS 10K Long Bolts and Nuts N/A M16
JIS 10K Long Bolts Length N/A 110 mm N/A 120 mm N/A 125 mm N/A 125 mm N/A 130 mm
JIS 10K Effective Screw Long Bolts Length N/A 25 mm N/A 30 mm N/A 30 mm N/A 30 mm N/A 30 mm
JIS 10K Number of Long Bolts N/A 4 N/A 4 N/A 4 N/A 8 N/A 8
ANSI 125Lb/150Lb Long Bolts and Nuts N/A U1/2 N/A U5/8 N/A U5/8 N/A U5/8 N/A U5/8
ANSI 125Lb/150Lb Long Bolts Length N/A 110 mm N/A 140 mm N/A 140 mm N/A 140 mm N/A 150 mm
ANSI 125Lb/150Lb Effective Screw Long Bolts Length N/A 32 mm N/A 38 mm N/A 38 mm N/A 38 mm N/A 38 mm
ANSI 125Lb/150Lb Number of Long Bolts N/A 4 N/A 4 N/A 4 N/A 4 N/A 8
D N/A 80 mm N/A 91 mm N/A 111 mm N/A 127 mm N/A 147 mm
L N/A 35.0 mm N/A 43 mm N/A 46 mm N/A 46 mm N/A 52 mm
H1 N/A 61 mm N/A 66 mm N/A 72 mm N/A 85 mm N/A 98 mm
H2 N/A 132 mm N/A 138 mm N/A 151 mm N/A 156 mm N/A 167 mm
Actuator Category N/A Control Heavy Duty ON-OFF Standard NAV-Z-Actuator-selection-chart.jpg
Lever Type N/A 1J-1 N/A 1J-1 N/A 1J-1 N/A 1J-1 N/A 1J-2
Gear Type N/A 2J-1 N/A 2J-1 N/A 2J-1 N/A 2J-1 N/A 2J-2
Cylinder Type N/A K30 K70S N/A K30 K70S N/A K170S K30 K70S N/A K170S K30 K70 N/A K170S K370S K70
Motor Type N/A 4 I-0 4 I-00 N/A 4 I-0 4 I-00 N/A 4 I-0 4 I-00 N/A 4 I-0 N/A 4 I-0
Body Material N/A Aluminum Diecast Alloy
Disc Material  N/A Coated Stainless Steel Type 316
Stem Material  N/A Stainless Steel Type 420J2
Seat Material N/A EPDM NBR
Column material N/A Engineering Plastic
Direction of Cylinder (Motor) N/A Perpendicular Standard