DESIGNED TO OPERATE AND PROTECT IRRIGATION NETWORKS

Designed to operate and protect irrigation networks

100 Series Control Valves offer exceptionally low-pressure losses at high flow rates.

WHY MILLIONS OF GROWERS USE OUR VALVES

Structural Simplicity.
Superb design featuring exceptionally low-pressure losses at high flow rates.
Can be used for regulating from no-flow to maximal flow with no need for additional throttling devices or by-pass valves.
A wide selection of materials, coating and diaphragm types
All valve models fit a wide variety of control applications using pilot valves.

WHAT MAKES 100 SERIES VALVES SPECIAL

Outstanding performance -High flow capacity and very low head losses achieved by a flexible diaphragm that provides a wide water passage throughout the valve’s hydrodynamic body.

Extremely Versatile - The valves are available in sizes 3/4"-24", globe and angle shapes, with an extensive selection of materials, and a full range of control functions and various end connections.

Ultimate Durability - Long life and easy inline maintenance accomplished by structural simplicity and the use of high-quality materials that can withstand the harshest conditions.

SPECIFICATIONS

Maximum pressure - 16 bar (230 psi) and 25 bar (365 psi)
Minimum recommended flow - 1 m3/h (5 gpm)
Minimum operating pressure - 0.4 bar (6 psi)

WHEN TO CHOOSE 100 SERIES CONTROL VALVES

Series 100 is designed to work under high pressures over 16 bar or when large diameters are needed. Use them for water conduction and in-field applications for field crops, vineyards, orchards, and greenhouses

MULTIPLE CONNECTION CHOICES

Unique Body design accepts multiple pipe size configurations, allowing for more efficient use of on-hand inventory. Available sizes/connections:

SERIES 100 EL SOLENOID CONTROLLED VALVE

This valve is activated by the line pressure or by an external hydraulic or pneumatic pressure. Valve position is controlled by a 3-way solenoid valve which activates an electric current or electric pulse to open and close the main valve. The standard valve is supplied in the “normally closed” position with a “normally open” position as optional. This hydraulic valve has direct-sealing diaphragm for inline maintenance. No stem, shaft or guide bearings are located within the water passage. Electric activation can be added to other control applications on request.

Features

Low power electric activation
Fast response
Simple and reliable design

Quick Sizing

Valve size same as line or one size smaller
Maximum flow speed for continuous operation 5.5 m/sec (18 ft/sec)

Design Considerations

The valve should be suited for the maximal flow and allowed headloss.
Select low pressure diaphragms when the valve is expected to stay in the open position for long periods.
The valve can be opened by the electric command (NC) or closed by it (NO). This definition refers to the main valve operation and not the solenoid’s characteristics.

Series 100 PR Pressure Reducing Valve

This valve is activated by the line pressure or by an external hydraulic or pneumatic pressure. Valve position is controlled by a pressure reducing pilot valve to achieve constant outlet (downstream) pressure, regardless of upstream pressure or flow variations. A 3-way pilot valve allows full opening when upstream pressure drops below the pressure set point.

Features

Accurate, stable control from no-flow to full flow
Simple and reliable design
Exceptionally low losses at high flow
WRAS Approval no. 04251

Quick Sizing

Valve size same as line or one size smaller
Maximum flow speed for continuous operation 5.5m/sec (18 ft/sec)

Design Considerations

The valve should be suited for the maximal flow and allowed headloss.
Select 3-way control pilot when the upstream pressure may drop to the required set pressure.
Large pressure differentials may cause cavitation damage – consult Netafim for solutions if such conditions are expected. This definition refers to the main valve operation and not the solenoid’s characteristics.

Series 100 RE Surge Anticipating Valve

This valve protects the pumping system from water hammer caused by sudden pump shut-off (for example: power failure). Assembled on a T-junction of the main pipeline, this valve instantly opens when the pump stops relieving the returning high pressure wave. The valve slowly closes once the pressure returns to the static level. It can also function as a pressure relief valve. This hydraulic valve has direct-sealing diaphragm for inline maintenance. No stem, shaft or guide bearings are located within the water passage. Line pressure or external hydraulic or pneumatic pressure activates the valve. Two pressure relief pilots – one for opening at a low pressure set point and one for opening at a high pressure set point.

Features

No slam operation
Simple and reliable design
Easy installation and maintenance
Low resistance and high flow capacity
Protection for sewage as well as clean water pumping systems

Quick Sizing

The valve should be sized to match the 80% of the normal flow at static head in the valve site:
- D[mm] ≤ √(250 x Flow[m3/hr] / √Pressure [mwc])
- D[inch] ≤ √(0.109 x Flow[gpm] / √Pressure [psi])

Design Considerations

Install a manual separation/throttling valve, upstream of the valve position.
Closure time is related to the pipe length and should be extended for longer pipe.
The valve sensor tube must be connected to the main line.

Series 100 QR Quick Pressure-Relief Valve

This valve opens instantly when the pressure in the pipeline exceeds the safe level, thus relieving excessive pressure from the network. When the pressure returns to normal, the valve closes slowly at an adjustable pace. The valve is hydraulic with a direct sealing diaphragm for inline maintenance. No stem, shaft or guide bearings are located within the water passage. Line pressure or external hydraulic or pneumatic pressure activates the valve.

Features

No slam operation
Simple and reliable design
Easy installation and maintenance
Low resistance and high flow capacity
Protection for sewage as well as clean water pumping systems

Quick Sizing

The valve should be sized to match the expected relief flow at the set opening pressure
- D[mm] ≤ √(250 x Flow[m3/hr] / √Pressure [mwc])
- D[inch] ≤ √(0.109 x Flow[gpm] / √Pressure [psi])

Design Considerations

Install a manual separation valve upstream of the valve.
Closure time is related to the pipe length and should be extended for longer pipe.
The valve opens instantly at the set pressure. For regulating the system pressure use a Pressure Sustaining Relief Valve and not a Quick Relief Valve.

D[mm] ≤ √(250 x Flow[m3/hr] / √Pressure [mwc])

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MANUAL VALVE OPERATION WITH A 3-WAY SELECTOR

CLOSED (C): Upstream pressure or pressure from an external source is applied to the control chamber. Initiated by the spring, the diaphragm is pressed down to close the valve drip-tight.

OPEN (O): Relieving the water or air pressure to the atmosphere from the control chamber causes the valve to open.

AUTOMATIC (A): The automatic port of the 3-Way selector is connected to a solenoid, hydraulic relay or pilot which controls the valve. The common port of the 3-Way selector connects the control chamber to either A, O or C, depending on the direction the selector is pointed.

Downloads

Product Sheets

S-100-Valves (PDF)

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