Pressure Regulators and Distribution Uniformity Model Preset Maximum Flow Inlet Outlet Number Operating Pressure Inlet Pressure Range Sizes2 Sizes3 (psi) (bar) (psi) (bar) (gpm) (L/s)

What is a Pressure Regulator?

A pressure regulator is a device designed toautomatically regulate water pressure in pipes ortubing downstream of its location. Pressureregulators have become an effective toolextensively used in solid-set, mechanical-moveand low-volume irrigation systems to achievespecific design objectives.

Distribution uniformity - a primary design objective

One standard design objective is to take a finiteamount of water and apply it uniformly over aspecific area. Uncontrolled pressure fluctuationsinto emission devices result in unwanted flowdeviations and lower distribution uniformities.Common causes of pressure variation includechanges in system demand and/or water supply,rolling terrain and friction loss through pipe andfittings. Proper use of pressure regulatorsprevents pressure fluctuations from diminishingthe distribution uniformity and economicefficiency of an irrigation system.

Many irrigation systems have the potential to experience elevation and pressure changes

causing flow fluctuations on unregulated systems.

Telephone: 407-293-5555 • Fax: 407-293-5740 • Int'l Fax: 407-293-5950Web: www.senninger.com • E-Mail: [email protected]

Pressure Regulators and Distribution Uniformity

Regulators ensure proper operating pressures

Some system components may fail or exhibitunacceptable performance characteristics ifpressures exceed a specific point. For example,most low-volume tubing and tape products have amaximum pressure rating to prevent productdamage or failure. Mechanical move systemcomponents have a range of pressures thatprovide optimal performance. For instance, whenpressures are allowed to exceed 15 to 20 psi, spraynozzles can produce water droplets that aresusceptible to evaporation and wind drift. Productlongevity can be enhanced for many otherapplicators by heeding the manufacturersmaximum pressure recommendations.

Pressure Regulation is important for energy conservation

An increasing awareness of energy andpumping costs are resulting in efforts to conserveenergy through improved irrigation systemdesign. This objective can be achieved by loweringthe operating pressure of the system. However, thelower a system’s design pressure, the more criticalit is to accurately control its pressure.

For example, comparing two systems ... in asystem designed with an operating pressure of 60 psi, a 5 psi pressure fluctuation results in a 4% flow deviation. In a system designed with a 20psi operating pressure, that same 5 psi pressurefluctuation results in a 12% flow deviation (a flowdeviation 3 times greater).

Proper system design hinges on pressure regulation

With current water availability and qualityconcerns placing an ever-increasing demand forgreater efficiencies from irrigation systems,pressure regulation is critical. Good distributionuniformity is dependent on proper system design.Proper system design hinges on a designer’sability to control the hydraulics of the systemthrough pressure regulation.

Pressure Regulator Product Selection

Telephone: 407-293-5555 • Fax: 407-293-5740 • Int'l Fax: 407-293-5950Web: www.senninger.com • E-Mail: [email protected] 3

For information about other products, contact your Senninger dealer or visit the Senninger website at www.senninger.com

Models Available (by regulated outlet pressures) Flow RangeRegulator Series (psi) (bar) (gpm) (L/s) Page

Pressure-Master Regulator ® – Low Flow 4PMR-LF

6, 10 0.41, 0.69 4 -16 0.252 - 1.01PMR-LF EFF – Effluent(lavender upper housing 12, 15, 20, 25, 0.83, 1.04, 1.38, 1.73, 0.1 - 8 0.006 - 0.504for non-potable water) 30, 35, 40 2.07, 2.42, 2.76

PMR-LF CMS – Copper Mine(for pH less than or equal to 4.0)

Pressure-Master Regulator ® – Medium Flow 5PMR-MF

6, 10 0.41, 0.69 4 -16 0.252 - 1.01PMR-MF EFF – Effluent(lavender upper housing 12, 15, 20, 25, 0.83, 1.04, 1.38, 1.73, 2 - 20 0.126 - 1.26for non-potable water) 30, 35, 40, 50, 60 2.07, 2.42, 2.76, 3.45, 4.14

PMR-MF CMS – Copper Mine(for pH less than or equal to 4.0)

Pressure Regulator – High Flow 6PR-HF 10, 15, 20, 25, 0.69, 1.04, 1.38, 1.73, 10 - 32 0.63 - 2.02

30, 40, 50 2.07, 2.76, 3.45

Pivot-Special Regulator TM 7PSR 6, 10, 12, 15, 0.41, 0.69, 0.83, 1.04, 0.5 - 15 0.032 - 0.945

17, 20, 25, 30, 1.17, 1.38, 1.73, 2.07, 35, 40, 50 2.42, 2.76, 3.45

Lawn & Garden Pressure Regulator 8PRLG 10, 15, 20, 25, 0.69, 1.04, 1.38, 1.73, 0.1 - 7 0.006 - 0.44

30, 35, 40 2.07, 2.42, 2.76

Mining Prospector TM Pressure Regulator 9PRMP 10, 15, 20, 25, 0.69, 1.04, 1.38, 1.73, 0.1 - 7 0.006 - 0.44(suitable for gold, silver 30, 35, 40 2.07, 2.42, 2.76and copper solution mining)

Pressure Regulating Limit Valve TM 14PRLV 30, 40, 50 2.07, 2.76, 3.45 0.5 - 15 0.032 - 0.945

4

Model Preset Maximum Flow Inlet OutletNumber Operating Pressure Inlet Pressure Range Sizes 2 Sizes 3

(psi) (bar) (psi) (bar) (gpm) (L/s) (NPT) (NPT)

PMR - 6 LF 6 0.41 100 6.90 0.5 - 5 0.032 - 0.315 3/4" F 3/4" FPMR - 10 LF 10 0.69 120 8.28 0.5 - 5 0.032 - 0.315 3/4" F 3/4" FPMR - 12 LF 12 0.83 135 9.31 0.1 - 8 0.006 - 0.504 3/4" F 3/4" FPMR - 15 LF 15 1.04 150 10.35 0.1 - 8 0.006 - 0.504 3/4" F 3/4" FPMR - 20 LF 20 1.38 150 10.35 0.1 - 8 0.006 - 0.504 3/4" F 3/4" FPMR - 25 LF 25 1.73 150 10.35 0.1 - 8 0.006 - 0.504 3/4" F 3/4" FPMR - 30 LF 30 2.07 150 10.35 0.1 - 8 0.006 - 0.504 3/4" F 3/4" FPMR - 35 LF 35 2.42 150 10.35 0.1 - 8 0.006 - 0.504 3/4" F 3/4" FPMR - 40 LF 40 2.76 150 10.35 0.1 - 8 0.006 - 0.504 3/4" F 3/4" F

Low Flow Pressure-Master Regulator Performance1 – PMR-LF

1 Regulated pressure is 1/2 psi (0.03 bar) higher with increasing inlet pressure than with decreasing inlet pressure2 Inlet also available in 3/4" F hose thread3 Outlet also available in 3/4" M hose thread


Low Flow - Pressure-Master Regulator ®

CAUTION: Always installdownstream from all shut-off valves.

Ideal for installations requiring lower flows including solid-set, drip or other low-volume irrigation systems as well ascenter pivot and other mechanical-move irrigation systems.

Advantages of the SenningerLow Flow Pressure-Master Regulator

• Maintains constant preset outlet pressure with varying inlet pressures• 100% water tested for accuracy (no adjustments ever needed)• Very low hysteresis and friction losses• Withstands severe water hammer • Above or below ground installation• Two-year warranty on materials, workmanship and performance

(one-year warranty on materials and workmanship for solution mining models)• Models also available for wastewater and solution mining applications

Refer to the performance chart above for maximum recommended inlet pressure for each model.Go to www.senninger.com for larger version; click on “Literature;” click on “Pressure Regulators.”

PMR-LF CMS models (left) are designedspecifically for mining applications wherepH solutions are less than or equal to 4.0PMR-LF EFF models (right) are designedspecifically for wastewater applications.

Medium Flow - Pressure-Master Regulator ®

Advantages of the Senninger Medium Flow Pressure-Master Regulator

• Maintains constant preset outlet pressure with varying inlet pressures• 100% water tested for accuracy (no adjustments ever needed)• Very low hysteresis and friction losses• Withstands severe water hammer • Above or below ground installation• Two-year warranty on materials, workmanship and performance

(one-year warranty on materials and workmanship for solution mining models)• Models also available for wastewater and solution mining applications

Model Preset Maximum Flow Inlet OutletNumber Operating Pressure Inlet Pressure Range Sizes Sizes


PMR - 6 MF 6 0.41 100 6.90 4 - 16 0.252 - 1.01 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 10 MF 10 0.69 120 8.28 4 - 16 0.252 - 1.01 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 12 MF 12 0.83 135 9.31 2 - 20 0.126 - 1.26 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 15 MF 15 1.04 150 10.35 2 - 20 0.126 - 1.26 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 20 MF 20 1.38 150 10.35 2 - 20 0.126 - 1.26 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 25 MF 25 1.73 150 10.35 2 - 20 0.126 - 1.26 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 30 MF 30 2.07 150 10.35 2 - 20 0.126 - 1.26 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 35 MF 35 2.42 150 10.35 2 - 20 0.126 - 1.26 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 40 MF 40 2.76 150 10.35 2 - 20 0.126 - 1.26 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 50 MF 50 3.45 150 10.35 2 - 20 0.126 - 1.26 3/4" F, 1" F, 1" M 3/4" F, 1" FPMR - 60 MF 60 4.14 150 10.35 2 - 20 0.126 - 1.26 3/4" F, 1" F, 1" M 3/4" F, 1" F

Medium Flow Pressure-Master Regulator Performance1 – PMR-MF

1 Regulated pressure is 1/2 psi (0.03 bar) higher with increasing inlet pressure than with decreasing inlet pressure


CAUTION: Always installdownstream from all shut-off valves.

Ideal for installations requiring midrange flows including solid-set, drip or other low-volume irrigation systems as well ascenter pivot and other mechanical-move irrigation systems.


PMR-MF CMS models (left) are designedspecifically for mining applications wherepH solutions are less than or equal to 4.0PMR-MF EFF models (right) are designedspecifically for wastewater applications.

6Telephone: 407-293-5555 • Fax: 407-293-5740 • Int'l Fax: 407-293-5950Web: www.senninger.com • E-Mail: [email protected]

High-Flow Pressure Regulator

• Maintains constant preset outlet pressure with varying inlet pressures

• 100% water tested for accuracy (no adjustments ever needed)

• Very low hysteresis and friction losses

• Above or below ground installation

• Two-year warranty on materials, workmanship and performance

Advantages of the Senninger High Flow Pressure Regulator

Ideal for solid-set sprinkler, low-volume, manifolds andmechanical-move irrigation systems.

Model Preset Maximum Inlet OutletNumber Operating Pressure Inlet Pressure Flow Range Sizes Sizes


PR - 10 HF 10 0.69 60 4.14 10 - 32 0.63 - 2.02 1 1/4" F 1 " F, 1 1/4" FPR - 15 HF 15 1.04 80 5.52 10 - 32 0.63 - 2.02 1 1/4" F 1 " F, 1 1/4" FPR - 20 HF 20 1.38 100 6.90 10 - 32 0.63 - 2.02 1 1/4" F 1 " F, 1 1/4" FPR - 25 HF 25 1.73 100 6.90 10 - 32 0.63 - 2.02 1 1/4" F 1 " F, 1 1/4" FPR - 30 HF 30 2.07 100 6.90 10 - 32 0.63 - 2.02 1 1/4" F 1 " F, 1 1/4" FPR - 40 HF 40 2.76 100 6.90 10 - 32 0.63 - 2.02 1 1/4" F 1 " F, 1 1/4" FPR - 50 HF 50 3.45 100 6.90 10 - 32 0.63 - 2.02 1 1/4" F 1 " F, 1 1/4" F

High Flow Pressure Regulator Performance1 – PR-HF


All Senninger pressure regulatorsare constructed of durable high-impact engineering-gradethermoplastics with a highquality stainless steelcompression spring and securingscrews. This durable constructioncoupled with their outstandingdesign and precision parts makethem suitable for a variety ofdifferent applications.

CAUTION: Always install downstream

from all shut-off valves.Refer to the performance chart above for maximum recommended inlet pressure for each model.Go to www.senninger.com for larger version; click on “Literature;” click on “Pressure Regulators.”


Pivot-Special Regulator TM

Advantages of the Senninger Pivot-Special Regulator

• Maintains constant preset outlet pressurewith varying inlet pressures


• Very low hysteresis and friction losses• Withstands severe water hammer• Tamper-proof housing• Two-year warranty on materials,

workmanship and performance

Used for center pivot and other mechanical-movesystems and can be installed at the top of the dropor near the applicator.

Model Preset Maximum Inlet OutletNumber Operating Pressure Inlet Pressure Flow Range Sizes Sizes


PSR - 6 6 0.41 100 6.90 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 10 10 0.69 120 8.28 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 12 12 0.83 135 9.31 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 15 15 1.04 135 9.31 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 17 17 1.17 135 9.31 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 20 20 1.38 135 9.31 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 25 25 1.73 135 9.31 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 30 30 2.07 135 9.31 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 35 35 2.42 135 9.31 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 40 40 2.76 135 9.31 0.5 - 15 0.032 - 0.945 3/4" F 3/4" FPSR - 50 50 3.45 135 9.31 0.5 - 15 0.032 - 0.945 3/4" F 3/4" F

Pivot-Special Regulator Performance1 – PSR



from all shut-off valves.

Designed to handle the flows along the length of a center pivot, as well as those associated with othermechanical-move systems.



Lawn & Garden Pressure Regulator Performance1 – PRLGModel Preset Maximum

Number Operating Pressure Inlet Pressure Flow Range Inlet Sizes Outlet Sizes(psi) (bar) (psi) (bar) (gpm) (L/s)

PRLG - 10 10 0.69 80 5.52 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRLG - 15 15 1.04 90 6.21 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRLG - 20 20 1.38 100 6.90 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRLG - 25 25 1.73 120 8.28 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRLG - 30 30 2.07 120 8.28 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRLG - 35 35 2.42 120 8.28 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRLG - 40 40 2.76 120 8.28 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" F NPT 3/4" M hose, 3/4" M NPT


Lawn & Garden Pressure Regulator


• 100% water tested for accuracy(no adjustments ever needed)

• Prevents wasteful misting when using small nozzles

• Tamper-proof housing• Two-year warranty on materials,


Advantages of the Senninger Lawn & Garden Pressure Regulator

Ideal for low-volume and sprinkler irrigation systems connected tooutdoor hose bibb faucets or other lawn and landscape applications.




The Senninger L&G Pressure Regulator is available as a hose x hose (top)

or an NPT x NPT configuration (above).

Senninger PE connectors are available for either 1/2 inch or 3/4 inch tubing.

Mining Prospector TM Pressure Regulator

• Specifically designed for mining applications even where pH solutions are less than or equal to 4.0



• Tamper-proof housing• One-year warranty on materials

and workmanship

Advantages of the Senninger MiningProspector Pressure Regulator

Ideal for pressure regulation of solution mining applications, including side slope leaching.

Mining Prospector Pressure Regulator Performance1 – PRMP Model Preset Maximum

Number Operating Pressure Inlet Pressure Flow Range Inlet Sizes Outlet Sizes(psi) (bar) (psi) (bar) (gpm) (L/s)

PRMP - 10 10 0.69 80 5.52 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" M hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRMP - 15 15 1.04 90 6.21 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" M hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRMP - 20 20 1.38 100 6.90 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" M hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRMP - 25 25 1.73 120 8.28 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" M hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRMP - 30 30 2.07 120 8.28 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" M hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRMP - 35 35 2.42 120 8.28 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" M hose, 3/4" F NPT 3/4" M hose, 3/4" M NPTPRMP - 40 40 2.76 120 8.28 0.1 - 7 0.006 - 0.44 3/4" F hose, 3/4" M hose, 3/4" F NPT 3/4" M hose, 3/4" M NPT






Recommended Installations

Spigot Hookup - “Y” Filter Spigot Hookup - Inline Filter

SPIGOT

Y JOINT(OPTIONAL)

INLINE FILTER(OPTIONAL)

PRESSUREREGULATOR

HOSE ADAPTER

TUBING

SPIGOT

Y JOINT(OPTIONAL)

Y FILTER(OPTIONAL)

PRESSUREREGULATOR

HOSE ADAPTER

TUBING

FLOW

Mechanical Move &Center Pivot Installation

PRESSUREREGULATOR

3/4" HOSE

APPLICATOR

HOSE BARBADAPTER& CLAMP


APPLICATOR

PRESSUREREGULATOR


3/4" HOSE

Senninger Pressure Regulators must always be placed downstream of all shut-off valves and filters.

Make sure to install regulator in the properdirection. Each regulator has a directional arrowembossed on the side of its lower housing thatshows the direction of flow and should pointdownstream toward the drip tubing, sprinklers,emitters, etc.

Never disassemble a pressure regulator.Regulators contain a compressed spring whichmay cause injury if released.

If you have a question about a Senningerpressure regulator, contact the technical servicedepartment at 407-293-5555.

FLOW

FLOW

10Telephone: 407-293-5555 • Fax: 407-293-5740 • Int'l Fax: 407-293-5950Web: www.senninger.com • E-Mail: [email protected]




Timer Controlled System

Typical Ag Installation

TUBING TUBING

SWIVEL T

PRESSUREREGULATOR

SHUT-OFF VALVE(OPTIONAL)

RISER

ELECTRICCONTROL VALVES (CV)

PRESSUREREGULATORS

(CV)

(CV)

(CV)

Multiple Regulatorsfor Higher Flow Situations

TOIRRIGATION ZONE

CONTROLVALVE

PRESSUREREGULATORS

(CV)

Timer Controlled System - “Y” filter

ELECTRICCONTROL

VALVEY FILTER

(OPTIONAL)PRESSURE

REGULATOR

FLOW

FLOW

FLOW

FLOW

SUPPLY LINE

SUB-MAIN SUB-MAIN

Recommended Installations



Water Hammer DamageThe pressure regulator may have been subjected tosudden high inlet pressure or water hammer. Verifyinlet pressure under normal operation. Confirm if awater hammer is occurring.

Shut-Off Valve LocationNever use a shut-off valve on theoutlet/downstream side of the pressure regulator(unless you are using the PRLV, Pressure RegulatingLimit Valve). The regulator is designed to operate ina dynamic situation within the recommended flow range.

Proper MountingIf the regulator is installed backwards (see arrowembossed on the side of the lower housing), leakagebetween the two housings indicates that there hasbeen damage to the regulator's internal diaphragm.

Proper Flow RateFlows exceeding the regulator's rated flow cancause vibration and ultimately internal damage tothe regulator. Refer to the performance chartswithin this document or look at the range printedon the regulator upper housing. When the flowexceeds the capacity of a single regulator, you maychoose a higher flow model or use two or moreregulators in parallel.

Proper Inlet PressurePressures exceeding the maximum recommendedinlet pressure can cause vibration and possible damage to the regulator.

Accurate Pressure GaugeDurable quality gauges should always be usedfor testing pressures. Reliable and accurategauges are available through your localSenninger dealer.

Proper MountingA common error when installing a pressureregulator is placing it backwards. To ensureproper mounting, first locate the directionalarrow embossed on the side of the lowerhousing. This arrow indicates the direction offlow and should point downstream toward thedrip tubing, sprinklers, emitters, etc.

Clogged Screens or Filters DownstreamTo ensure an unobstructed flow, check screensand filters for clogging. Periodic cleaning ofscreens is recommended.

Proper Flow RateFlow through each regulator should be withinit's rated range. Refer to the performance chartswithin this document or look at the rangeprinted on the regulator upper housing.

Breaks or Leaks in Your SystemCheck your system for any leaks or breaks.These will cause irregularities downstreamand/or in your outlet pressures.


Helpful Tips for Proper Installation

If a pressure regulator is leaking between the upper and lower housing * *

... check for

If irregular downstream pressures develop... check for

If vibration noises originate from the regulator... check for

Senninger pressure regulators are 100% water-tested for accuracy. Each is backed by a two year warranty *on materials, workmanship and performance. Regulator malfunctions are often the result of improperinstallation. Should you experience the symptoms below, these tips will be helpful:

If you have a question about a Senninger pressure regulator,

contact Senninger Irrigation’s technical servicedepartment in Clermont at 407-293-5555.

* Solution mining models are backed by a one-year warranty on materials and workmanship.

** If a pressure regulator is leaking between the upper and lower housing, there is internal damage that requires replacing the regulator.

Flow

spring

diaphragm

seat

How a Pressure Regulator Functions

Pressurized(pressure differential 15 psi)

Pressurized(pressure differential 40 psi)

Each Senninger pressureregulator model has an internalcompression spring correspondingto the specific preset outletpressure rating. The example to theright illustrates how a 10 psi modelreacts to increasing upstreampressure, maintaining thedownstream pressure at 10 psi.

From a normally open position,the throttling stem moves towardthe stationary seat as inlet pressureon the diaphragm increases. Thisadjustment of the flow pathprovides just enough correction tomaintain the downstream pressureat the preset outlet pressure.

Non-Pressurized(pressure differential 0 psi)

Cutaway View of aPressure Regulator

Flow

Flow

Flow

throttling stem


Pressure Regulating Limit Valve TM

Advantages of the Senninger Pressure Regulating Limit Valve

• Maintains constant preset outlet pressure with inlet pressures up to 150 psi

• Limits downstream pressure to no more than 15 psi above regulated pressure rating during static (no flow) conditions

• Helps protects downstream components when inlet pressure to PRLV does not exceed 150 psi


• Ideal for livestock watering applications• Above or below ground installation• One-year warranty on materials,


Used in place of standard pressure regulatorsto limit static (no flow) water pressure when a shut-off valve is used downstream of regulation point. Limits downstream pressure and protects downstream components.

PRLV Recommended Installation

* Unions recommended for ease of maintenance

(Available from Senninger Irrigation).

CAUTION: Recommended for outdoor use only.

FLOW

* *



Model Preset Maximum Flow Inlet OutletNumber Operating Pressure Inlet Pressure Range Sizes Sizes


PRLV - 30 30 2.07 150 10.35 0.5 - 15 0.032 - 0.94 3/4" F, 1" F 3/4" F, 1" FPRLV - 40 40 2.76 150 10.35 0.5 - 15 0.032 - 0.94 3/4" F, 1" F 3/4" F, 1" FPRLV - 50 50 3.45 150 10.35 0.5 - 15 0.032 - 0.94 3/4" F, 1" F 3/4" F, 1" F

Pressure Regulating Limit Valve Performance1 – PRLV


Because the PRLV is designed to operate with clean water, the use of a filter upstream is recommended.

Filters should be 100 mesh or finer and be capable of flowing up to 15 gpm with no more than 5 psi internal friction loss.

CAUTION: Recommended for outdoor use only.

Pressure Regulating Limit Valve TM



PerformanceProducts manufactured by Senninger

and used for ag, turf and nursery irrigationare warranted to maintain their originalnozzle orifice size for a period of five years.Senninger also warrants these products tomaintain their original performance for aperiod of two years from date of originalshipment when installed and operated inaccordance with Senninger’s writtenspecifications and used for their ordinarypurpose.Repair or Replacement

If a product is suspected of failureunder terms of the above provisions, itmust first be reported in writing to theattention of the Material Review Engineerat the company’s Clermont, Florida office.An authorization may then be issued toreturn the product(s), shipping chargesprepaid, to Clermont for inspection. If inthe opinion of the Material ReviewEngineer the product has failed, a repair orreplacement will be authorized as required.

Senninger’s obligation with respect tothe above provisions concerning material,workmanship and performance is limitedto the repair or replacement of theparticular product involved. Senninger isnot obligated to pay for repairs orreplacements made by anyone other thanitself.

No labor allowances will be made forremoval or replacement of said parts norfor any travel to and from the product tomake said repairs or replacement withoutprior written authorization from an officerof Senninger Irrigation.Suitability

There is positively no warranty relatingto the fitness of the product(s) for anyparticular purpose or use. It is the soleresponsibility of the purchaser to considerand analyze the product and its design tobe suitable for specific applications.

Warning – DisclaimerThis warranty is the full and complete

product warranty and is expressly in lieuof any and all representations orwarranties, expressed or implied,including any implied warranties ofmerchantability or fitness for particularpurpose, whether arising from statute,common law, custom, course of dealing,usage of trade or otherwise. No personhas the authority to incur or assume forSenninger any other liability as toproducts manufactured by Senninger.

This warranty shall not apply to anyproduct which shall have been repaired oraltered in any way outside the Senningerfactory so as to affect its use or operationas determined by Senninger, nor shall itapply to any such product which has beensubject to misuse, negligence or accidentor has been operated contrary toSenninger’s printed instructions.

Senninger shall not be liable for anyconsequential and incidental damagesresulting from the use of said products orcaused by any defects, failure ormalfunction, whether a claim for suchdamages is based on warranty, productdesign, system engineering, contractnegligence or otherwise. Senninger makesno warranty whatsoever with respect toproducts manufactured by others to whichSenninger’s products may be attached,whether or not warranted by such othermanufacturers.Materials & Workmanship

Products manufactured bySenninger Irrigation Inc. are warrantedfor a period of two years from date oforiginal shipment to be free of anydefects in material or workmanship,with the exception of PRLV and miningmodels, which are warranted for oneyear.

Expressly Limited

Product Warrantyand Disclaimer

04REG8

Documents

Pressure Regulators and Distribution Uniformity Model Preset Maximum Flow Inlet Outlet Number Operating Pressure Inlet Pressure Range Sizes2 Sizes3 (psi) (bar) (psi) (bar) (gpm) (L/s)