Toro Owners Manual - Enlarge page 1 of 2
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From inside (document excerpt):
252 Series Valves V A L V E S Extremely versatile, rugged large residential/commercial valves designed to provide a wide array of options for a variety of water conditions. 40mm (11/2 “) Debris Resistant 25mm (1 “) Electric 50mm (2 “) Electric Pin-Type Hydraulic Effluent flow-control knob available (Part # 89-7855) 50mm (2 “) Debris Resistant 25-50mm (1 “-2 “) Electric, 40 and 50mm (11/2 ” and 2 “) N.
O. Hydraulic, 40 and 50mm (11/2 ” and 2 “) Debris Resistant, 40mm (11/2 “) Pin-Type Hydraulic Models Features · Globe/Angle configuration · Stainless-steel seat 40 and 50mm (11/2 ” and 2 “) models · Fabric-reinforced diaphragm: 40 and 50mm (11/2 ” and 2 “) models · Rubber diaphragm: 25mm (1 “) model · Manual flow control: adjustable to zero flow · Manual bleed screw · Energy-efficient solenoid · 61cm (24 “) solenoid lead wires (40 and 50mm) (11/2 ” and 2 ” electric) or 45cm (18 “) lead wires (25mm and 1 ” electric models) for easy-access installation · Self-cleaning, stainless-steel metering pin (electric models) · Stainless-steel diaphragm differential spring for smooth, positive closing · Single-piece diaphragm for reliable, leak-free valve closing · Removable, self-flushing, stainless-steel screen 120 mesh (contamination-resistant models) · Tough, glass-filled Zytel® cap provides stability under pressure · Durable engineering plastic and stainless-steel construction for exceptional durability Specifications · Recommended flow range: · 25mm 19-76 LPM (1 ” 5-20 GPM) · 40mm 114-303 LPM (11/2 ” 30-80 GPM) · 50mm 227-568 LPM (2 ” 60-150 GPM) · Operating pressure: 1.4-10 Bar (20-150 PSI) · Burst pressure safety rating: 52 Bar (750 PSI) · Body styles: · Globe/Angle valve 25, 40 or 50mm (1 “, 11/2 ” or 2 “) femalethreaded inlet and outlet · NPT/BSP threads available · Solenoid 25, 40 and 50mm (1 “, 11/2 ” and 2 “) valve: 50/60 Hz (24 V.a.c.) · Inrush: 0.30 Amps, 7.20 VA · Holding: 0.20 Amps, 4.80 VA · Dimensions: · 25mm Models 171 x 114mm (H x W) (1 ” 63/4 ” x 41/2 “) (H x W) · 40mm Models 197 x 152mm (H x W) (11/2 ” 73/4 ” x 6 “) (H x W) · 50mm Models 241 x 178mm (H x W) (2 ” 91/2 ” x 7 “) (H x W) 252 Series Valves 252 Series Friction Loss Chart Metric Data (Bar)* Flow (LPM) 25mm (1 “) Electric – Angle 25mm (1 “) Electric – Globe 40mm (11/2 “) Electric – Angle 40mm (11/2 “) Electric – Globe 40mm (11/2 “) Hydraulic – Angle 40mm (11/2 “) Hydraulic – Globe 50mm (2 “) Electric – Angle 50mm (2 “) Electric – Globe 50mm (2 “) Hydraulic – Angle 50mm (2 “) Hydraulic – Globe *Values are listed in Bar 25 0,2 0,2 50 0,26 0,30 75 0,31 0,34 100 0,32 0,43 0,09 0,10 0,07 0,07 125 0,40 0,53 0,08 0,11 0,08 0,09 150 0,51 0,65 0,10 0,14 0,10 0,14 175 200 250 300 400 500 0,12 0,18 0,10 0,18 0,16 0,23 0,13 0,23 0,21 0,32 0,25 0,34 0,07 0,14 0,07 0,14 0,33 0,47 0,34 0,44 0,13 0,17 0,13 0,17 0,52 0,84 0,56 0,78 0,23 0,28 0,23 0,27 0,70 1,20 0,9 1,0 0,30 0,45 0,30 0,43 For kPa values, multiply tabular values by 100. For Kg/cm2 values, multiply tabular values by 1,02 252 Series Friction Loss Chart English Data (PSI) Flow (GPM) 1 ” Electric – Angle 1 ” Electric – Globe 11/2 ” Electric – Angle 11/2 ” Electric – Globe 11/2 ” Hydraulic – Angle 11/2 ” Hydraulic – Globe 2 ” Electric – Angle 2 ” Electric – Globe 2 ” Hydraulic – Angle 2 ” Hydraulic – Globe Electric N. O. Hydraulic Pin-Type Hydraulic X 50mm (2 “) NPT X X BSP X X Energy Efficient Solenoid Tough, glass-filled Zytel cap Fabric-reinforced diaphragm Self-cleaning, stainless-steel metering pin Contamination-Resistant (Electric) X X Globe/Angle configuration 252 Electric Valve Specifying Information 252 Series Plastic Valves 252 Activation Type 0625mm (1 “) Electric 2040mm (11/2 “) Pin-Type Hydraulic 21Normally Open Hydraulic 2540-50mm (11/2 “- 2 “) Electric, Debris Resistant 2640-50mm (11/2 “- 2 “) Electric XX XX Thread 0NPT 5BSP Size 425mm (1 “) 640mm (11/2 “) 850mm (2 “) For Example: When specifying a 40mm (11/2 “) BSP 252 Series electric debris-resistant valve, you would specify: 252-25-56 Worldwide Headquarters The Toro Company 8111 Lyndale Avenue South Bloomington, MN 55420 Phone: 952-888-8801 Fax: 952-887-7265 www.toro.com GB Form Number: 200-xxxx 2005 The Toro Company