BERMAD Irrigation BERMAD Irrigation WW-700 Series Pumping Stations BERMAD Irrigation WW-700 Series Pumping Stations Pumping Stations For full technical details, refer to Engineering Section. Technical Data Dimensions and Weights Booster Pump Control Valve Model 740 with Solenoid Control WW-735-55-M ■ Eliminates surge in all pumping systems: ❑ Booster & deep well, single & variable speed ■ Eliminates surge in all distribution networks: ❑ Municipal, high-rise buildings, sewage, HVAC, irrigation Data is for Y-pattern, flat disk valves For more flow charts, refer to Engineering Section ❑ Difficult to maintain, remote locations, older systems Pilot Valve Selection Main Valve Surge Anticipating Control Valve with Solenoid Control Model 735-M Data is for Y-pattern, flanged, PN16 valves Weight is for PN16 basic valves “C” enables removing the actuator in one unit “L”, ISO standard lengths available For more dimensions and weights tables, refer to Engineering Section Relief Line Surge Anticipating Control Valve In this system, a pump battery supplies the main line through a manifold. The Model 735-55-M: ■ Eliminates surge upon power failure ■ Provides surge free switching between “on-duty” pumps ■ Closes smoothly according to pilot setting The solenoid control is especially advantageous when: ■ Static pressure is lower than 3 bar (45 psi) ■ Discharge line is short and wave critical time is less than 3 seconds ■ Electric control is preferred due to maintenance considerations Typical Applications Control System Valve Patterns: “Y” (globe) & angle Size Range: 11/2–32” (40-800 mm) End Connections (Pressure Ratings): Flanged: ISO PN16, PN25 (ANSI Class 150, 300) Threaded: BSP or NPT Others: Available on request Working Temperature: Water up to 80°C (180°F) Standard Materials: Body & Actuator: Ductile Iron Internals: Stainless Steel, Bronze & coated Steel Diaphragm: NBR Nylon fabric-reinforced Seals: NBR Coating: Fusion Bonded Epoxy, RAL 5005 (Blue) NSF & WRAS approved or Electrostatic Polyester Powder, RAL 6017 (Green) Standard Materials: Accessories: Bronze, Brass, Stainless Steel & NBR Tubing: Copper or Stainless Steel Fittings: Forged Brass or Stainless Steel Pilot Standard Materials: Body: Brass, Bronze or Stainless Steel Elastomers: NBR Springs: Galvanized Steel or Stainless Steel Internals: Stainless Steel Solenoid Standard Materials: Body: Brass or Stainless Steel Elastomers: NBR or FPM Enclosure: Molded epoxy Solenoid Electrical Data: Voltages: (dc): 24 Power Consumption: (dc): 8-11.6W Pilot Type Valve Size The Model 735-55-M Surge Anticipating Valve with Solenoid Control is an off-line, hydraulically operated, diaphragm actuated valve. The valve immediately opens in direct response to any power failure even prior to the pressure drop associated with abrupt pump stoppage. The pre-opened valve dissipates the returning high pressure wave, eliminating the surge. The Model 735-55-M, sensing line pressure, smoothly closes drip-tight as quickly as the relief feature allows, while preventing closing surge. The valve also relieves excessive system pressure. Standard model with high pressure setting kit Ac-Accelerated Openig valve BR 735-UPS Controller Supply voltage: 110, 230 V(ac) 50/60 Hz Self power consumption: 6VA Batteries: Two 12V, 4AH, rechargeable type Protection class: IP54 Operating temperature: 10-50ºC (50-125ºF) Dimensions (mm): H-211, W-240 & D-116 System is capable of energizing up to two 24V(dc) 12W solenoids Values might vary according to specific solenoid model Major Additional Features Sensing diaphragm (for sewage) – 735-55-Md Replaces surge air vessels ❏ Note: Surge analysis assumes free flow through the Relief Line. Valve sizing and configuration should be reconsidered if the Relief Line is pressurized. Additional Feature Body Material Voltage & Position Tubing & Fittings Surge Anticipating Control Oblique (up to 20”) Y Angle (up to 18”) A Globe (24-32” only) G Epoxy FB Blue Polyester Green Polyester Blue Uncoated Copper Tubing & Brass Fittings CB Plastic Tubing & Brass Fittings PB St. St. 316 Tubing & Fittings NN No Additional Feature Hydraulic Override Multi-Setting Levels - Electrically Selected Solenoid Controlled Electric Override Flow Stem Large Control Filter Sensing Diaphragm V-Port Throttling Plug Orifice Assembly St. St. 316 Control Accessories St. St. 316 Internal Trim (Closure & Seat) St. St. 316 Actuator Internal Assembly Delrin Bearing Viton Elastomers for Seals & Diaphragm Pressure Gauge Electric override for fire protection – FP-730-59 Electrically selected multi-level settings – 735-45-M Lower investment and maintenance costs Quick pressure relief valve – 73Q Especially economic for higher pressure ratings Ductile Iron Standard Cast Steel St. Steel 316 Nickel Alumin. Bronze Additonal Attributes Minimal maintenance Primary Feature As the Model 735-55-M Surge Anticipating Valve with Solenoid Control remains closed except in the event of power failure, it requires a Normally Open (N.O.) always energized solenoid, which is vulnerable to problems (coil heating, sticking problems, calcium build-up, etc.). The recommended alternative is using a combination of a Normally Closed (N.C.) de-energized solenoid, and an Un-Interruptible Power Source (UPS). The BR-735-UPS Controller, includes two re-chargeable lithium batteries and a settable timer for determining the period that the valve remains open. The Controller, as a part of the pump control panel, immediately energizes the N.C. solenoid to open the valve for a pre-set time after which it de-energizes the solenoid, allowing the Model 735-55M to start closing. Please specify the requested valve in the following sequence: (for more options, refer to Ordering Guide) Relieves surge, fail-safe open Wide range of pressures Line pressure driven ❏ Adjustable hydraulic actuation Moderated valve closing (no surges) Protected diaphragm [email protected] • www.bermad.com The information herein is subject to change without notice. BERMAD shall not be held liable for PC7AE35-55 05 any errors. All rights reserved. © Copyright by BERMAD. Multiple choices permitted In-line serviceable – Easy maintenance Obstacle free, full bore – Uncomp