SANDPIPER ET2 - M User Manual

SERVICE AND OPERATING MANUAL

(50mm)

ASA style flange 0 to 135 gallons per minute

(0 to 511 liters per minute)

Up to 1/4"

(6mm)

125 psi or 289 ft. of water

(8.8 Kg/cm2 or 88 meters)

No-lube, no-stall

design.

AL = Aluminum CI = Cast Iron B = Buna

N = Neoprene

V = Viton

®Santoprene is a registered tradename of Monsanto Corp. ®Viton is a registered tradename of E.I. du Pont. ®Warren Rupp and SANDPIPER are registered tradenames of Warren Rupp, Inc.

ET2-M

Type 1

Manifold Outer

Chamber

Driver

Chamber

Inner

Chamber

Outer

Diaphragm

Plate

Inner

Diaphragm

Plate

Intermediate

Housing

Diaphragm

Rod

Shipping

Weight

(lbs)

Air ValveBall Valve

Material

Driver

Diaphragm

Pumping

Diaphragm

Hardware

Valve

Seat

TNN-1-A AL356T6 AL356T6 AL356T6 AL380DC AL380DC PS AL356T6 416SS N PS N N N AL356T6 161 TGN-1-A AL356T6 AL356T6 AL356T6 AL380DC AL380DC PS AL356T6 416SS T PS T N T AL356T6 161 TBB-1-A AL356T6 AL356T6 AL356T6 AL380DC AL380DC PS AL356T6 416SS B PS B B B AL356T6 161 TCV-1-A AL356T6 AL356T6 AL356T6 AL380DC AL380DC PS AL356T6 416SS T PS V V T AL356T6 161 THI-1-A AL356T6 AL356T6 AL356T6 AL380DC AL380DC PS AL356T6 416SS T

PS E E T AL356T6 161 TQS-1-A AL356T6 AL356T6 AL356T6 AL380DC AL380DC

TSS-1-A AL356T6 AL356T6 AL356T6 AL380DC AL380DC

PS AL356T6 416SS

N PS S S

PS S S S

N AL356T6 161

AL356T6 161

Type1

ET2-M

Performance based on water at ambient temperature. Average displacement per pump stroke: 1.63 liter.

Performance based on water at ambient temperature. Average displacement per pump stroke: .43 gallon.

PS = Plated Steel

SS = Stainless Steel S = Santoprene T = PTFE

Quality System

ISO9001 Certified

Environmental

Management System

ISO14001 Certified

pumps are designed to be powered only by compressed air)

Temperature Limit: 212°F -

100°C

(SANDPIPER

SANDPIPER® Model ET2-M SANDPIPER® Model ET2-M

This pump is part of the Containment Duty Pumps. It is specially fitted with elastomeric driver diaphragms, aluminum spill containment chambers,

and elastomeric or PTFE pumping diaphragms. The liquid-filled containment chambers provide an additional spill containment barrier, should a pumping

diaphragm fail. The Containment Duty design gives the pump user

advanced warning of diaphragm failure, before pumpage can damage the air valve, or be released into the work environment. A “sight tube” style of visual leak detection is standard on this pump, displaying an obvious color change if a leak occures in the pumping diaphragm. Electronic leak detection is optional with this model.

The Containment Duty Pumps offers many different levels of materials and

spill monitoring devices designed to fit a variety of applications and budgets.

SANDPIPER® Containment Duty Pumps: Sealless Safety

CONTAINMENT DUTY

Original Instructions

ET2 - M

Table of Contents

Engineering Data, Temperature Limitations, & Performance Curve ...................... 1

Explanation of Pump Nomenclature ...................................................................... 1

Dimensions ............................................................................................................ 2

CONTAINMENT DUTY Type 1

Principle of Operation ............................................................................................ 3

Installation and Start-Up ........................................................................................ 3

Air Supply .............................................................................................................. 4

Air Inlet & Priming .................................................................................................. 4

ESADS+Plus

Air Exhaust

Between Uses ....................................................................................................... 5

Check Valve Servicing ........................................................................................... 6

Diaphragm Servicing ............................................................................................. 6

Pilot Valve .............................................................................................................. 6

Externally Serviceable Air Distribution System ................................4

................................................................................................................ 5

Pilot Valve Actuator ................................................................................................ 6

Service Instructions: Troubleshooting ................................................................... 7

Warranty ................................................................................................................ 7

Composite Repair Parts List ............................................................................... 8-9

Composite Repair Drawing.................................................................................. 10

Important Safety Information ............................................................................... 11

Material Codes .................................................................................................... 12

Declaration of Conformity - Machinery ................................................................ 13

800 N. Main St., Manseld, Ohio 44902 USA • Telephone (419) 524-8388 • Fax (419) 522-7867 • warrenrupp.com

Model ET2-M Type 1 Page 6 et2dl2sm-0614

Warren Rupp, Inc. • A Unit of IDEX Corporation

Quality System

CONTAINMENT DUTY

ISO9001 Certified

Environmental

Management System

ET2-M

ISO14001 Certified

(50mm)

ASA style flange 0 to 135 gallons per minute

(0 to 511 liters per minute)

No-lube, no-stall

design.

Up to 1/4"

(6mm)

125 psi or 289 ft. of water

(8.8 Kg/cm2 or 88 meters)

SANDPIPER® Containment Duty Pumps: Sealless Safety

This pump is part of the Containment Duty Pumps. It is specially fitted with elastomeric driver diaphragms, aluminum spill containment chambers,

and elastomeric or PTFE pumping diaphragms. The liquid-filled containment chambers provide an additional spill containment barrier, should a pumping diaphragm fail. The Containment Duty design gives the pump user or be released into the work environment. A “sight tube” style of visual leak detection is standard on this pump, displaying an obvious color change if a leak occures in the pumping diaphragm. Electronic leak detection is optional with this model.

The Containment Duty Pumps offers many different levels of materials and

(SANDPIPER

advanced warning of diaphragm failure, before pumpage can damage the air valve,

spill monitoring devices designed to fit a variety of applications and budgets.

pumps are designed to be powered only by compressed air)

Temperature Limit: 212°F -

100°C

Type1

SANDPIPER® Model ET2-M SANDPIPER® Model ET2-M

Performance based on water at ambient temperature. Average displacement per pump stroke: .43 gallon.

ET2-M

Type 1

TSS-1-A AL356T6 AL356T6 AL356T6 AL380DC AL380DC

Manifold Outer

Chamber

Driver

Chamber

Inner

Chamber

AL = Aluminum CI = Cast Iron B = Buna

Outer

Diaphragm

Plate

Inner

Diaphragm

Intermediate

Plate

PS AL356T6 416SS

Housing

N = Neoprene PS = Plated Steel V = Viton

Diaphragm

Rod

Hardware

Valve

Seat

N PS S S

SS = Stainless Steel S = Santoprene T = PTFE

Pumping

Diaphragm

PS E E T AL356T6 161

PS S S S

Performance based on water at ambient temperature. Average displacement per pump stroke: 1.63 liter.

Driver

Diaphragm

Material

N AL356T6 161

Shipping

Air ValveBall Valve

AL356T6 161

Weight

(lbs)

®Santoprene is a registered tradename of Monsanto Corp. ®Viton is a registered tradename of E.I. du Pont. ®Warren Rupp and SANDPIPER are registered tradenames of Warren Rupp, Inc.

et2dl2sm-0614 Model ET2-M Type 1 Page 1

CONTAINMENT DUTY

NEOPRENE All purpose. Resistant to vegetable oils. Generally not affected by moderate chemicals, fats, greases and many oils and solvents. Generally attacked by strong oxidizing acids, ketones, esters, nitro hydrocarbons and chlorinated aromatic hydrocarbons.

PTFE Chemically inert, virtually impervious. Very few chemicals are known to chemically react with PTFE: molten alkali metals, turbulent liquid or gaseous fluorine and a few fluoro-chemicals such as chlorine trifluoride or oxygen difluoride which readily liberate free fluorine at elevated temperatures.

For specific applications, always consult the Warren Rupp Chemical Resistance Chart.

Dimensions are ± 1/8" Figures in parenthesis = millimeters

Dimension A to Air Inlet B Width Standard Pump 7" (178) 12.13/16" (325) Pulse Output Kit 7.9/16" (192) 13.3/8" (340)

170°F -35°F 50°F to 130°F

77°C -37°C 10°C to 54°C

212°F+ -35°F 50°F to 212°F

100°C+ -37°C 10°C to 100°C

*Definite reduction in service life. **Minimal reduction in service life at ends of range.

SANDPIPER® is a registered tradename of Warren Rupp, Inc.

Model ET2-M Type 1 Page 2 et2dl2sm-0614

SERVICE AND OPERATING MANUAL

CONTAINMENT DUTY Type 1

PRINCIPLE OF OPERATION

This ball check valve pump is powered by compressed air and is a 1:1 pressure ratio design. It alternately pressurizes the inner side of one diaphragm chamber, while simultaneously exhausting the other inner chamber. This causes the diaphragms, which are connected by a common rod, to move endwise. Air pressure is applied over the entire surface of the diaphragm, while liquid is discharged from the opposite side. The diaphragm operates under a balanced condition during the discharge stroke, which allows the unit to be operated at discharge heads over 200

feet (61 meters) of water head.

Since the diaphragms are connected by a common rod, secured by plates to the center of the diaphragms, one diaphragm performs the discharge stroke, while the other is pulled to perform the suction stroke in the opposite chamber.

For maximum diaphragm life, keep the pump as close to the liquid being pumped as possible. Positive suction head in excess of 10 feet of liquid (3.048 meters) may

require a back pressure regulating device. This will maximize diaphragm life.

Alternate pressuring and exhausting of the diaphragm chamber is performed by means of an externally mounted, pilot operated, four-way spool type air distribution valve. When the spool shifts to one end of the valve body, inlet air pressure is applied to one diaphragm chamber and the other diaphragm chamber exhausts. When the spool shifts to the opposite end of the valve body, the porting of chambers is reversed. The air distribution valve spool is moved by an internal pilot valve which alternately pressurizes one side of the air distribution valve spool, while exhausting the other side. The pilot valve is shifted at each end of the diaphragm stroke by the diaphragm plate coming in contact with the end of the pilot valve spool. This pushes it into position for shifting of the air distribution valve.

The chambers are manifolded together with a suction and discharge check valve

for each chamber, maintaining ow in one direction through the pump.

This SandPIPER pump differs from others in that it utilizes four diaphragms instead of two. The two rod-connected diaphragms are the driver diaphragms,

and the other two (outermost) diaphragms are the actual pumping diaphragms. Each driver diaphragm (of Neoprene or other elastomer), and the pumping diaphragm (of TFE), are separated by a chamber lled with liquid which transmits the

reciprocating motion of the driver diaphragm to the pumping diaphragm. The pumping diaphragms, create the alternating suction and discharge action to each outer diaphragm chamber. The pumping diaphragms are the only ones in contact with the liquid being pumped.

Original Instructions

ET2 - M

INSTALLATION & START-UP

Locate the pump as close to the product being pumped as possible, keeping

suction line length and number of ttings to a minimum. Do not reduce line size.

For installations of rigid piping, short exible sections of hose should be installed

between pump and piping. This reduces vibration and strain to the piping system. A Warren Rupp Tranquilizer

pulsation in ow.

This pump was tested at the factory prior to shipment and is ready for operation. It is completely self-priming from a dry start for suction lifts of 10-15 feet

(9-14 meters) or less. For suction lifts exceeding 15 feet of liquid, ll the chambers

with liquid prior to priming.

surge suppressor is recommended to further reduce

et2dl2sm-0614 Model ET2-M Type 1 Page 3

AIR SUPPLY

Air supply pressures cannot exceed 125 psi (8.61 bar). Connect the pump air inlet (see Fig. 1) to an air supply of sufcient capacity and pressure required for desired performance. When the air line is solid piping, use a short length of exible hose (not less than ¾" [19mm] in diameter) between pump and piping to eliminate strain to

pipes.

AIR INLET & PRIMING

For start-up, open an air valve approximately ½ to ¾ turn. After the unit primes, an air valve can be opened to increase ow as desired. If opening the valve increases cycling rate, but does not increase ow rate, cavitation has occurred, and the valve

should be closed slightly.

For the most efcient use of compressed air and the longest diaphragm life, throttle the air inlet to the lowest cycling rate that does not reduce ow.

A NOTE ABOUT AIR VALVE LUBRICATION

The SandPIPER pump’s pilot valve and main air valve assemblies are designed to operate WITHOUT lubrication. This is the preferred mode of operation. There may be instances of personal preference, or poor quality air supplies when lubrication of the compressed air supply is required. The pump air system will operate with properly lubricated compressed air supplies. Proper lubrication of the compressed air sup-

ply would entail the use of an air line lubricator (available from Warren Rupp) set to deliver one drop of 10 wt., non-detergent oil for every 20 SCFM of air the pump

consumed at its point of operation. Consult the pump’s published Performance Curve to determine this.

It is important to remember to inspect the sleeve and spool set routinely. It should move back and forth freely. This is most important when the air supply is lubricated. If a lubricator is used, oil accumulation will, over time, collect any debris from the compressed air. This can prevent the pump from operating properly.

Water in the compressed air supply can create problems such as icing or freezing of the exhaust air causing the pump to cycle erratically, or stop operating. This can be addressed by using a point of use air dryer (available from Warren Rupp) to supplement a plant’s air drying equipment. This device will remove excess water from the compressed air supply and alleviate the icing or freezing problem.

ESADS: EXTERNALLY SERVICEABLE AIR DISTRIBUTION SYSTEM

Please refer to the exploded view drawing and parts list in the Service Manual supplied with your pump. If you need replacement or additional copies, contact your local Warren Rupp Distributor, or the Warren Rupp factory Literature Department at the number shown below. To receive the correct manual, you must specify the MODEL and

TYPE information found on the name plate of the pump.

MODELS WITH 1" SUCTION/DISCHARGE OR LARGER, AND NON-METAL CENTER SECTIONS

The main air valve sleeve and spool set is located in the valve body mounted on the pump with four hex head capscrews. The valve body assembly is removed from the pump by removing these four hex head capscrews.

With the valve body assembly off the pump, access to the sleeve and spool set is

made by removing a retaining ring (each end) securing the end cap on the valve body

assembly. With the end caps removed, slide the spool back and forth in the sleeve. The spool is closely sized to the sleeve and must move freely to allow for proper pump operation. An accumulation of oil, dirt or other contaminants from the pump’s air supply, or from a failed diaphragm, may prevent the spool from moving freely. This can cause the spool to stick in a position that prevents the pump from operating. If this is the case, the sleeve and spool set should be removed from the valve body for cleaning and further inspection.

Remove the spool from the sleeve. Using an arbor press or bench vise (with an improvised mandrel), press the sleeve from the valve body. Take care not to damage

the sleeve. At this point, inspect the o-rings on the sleeve for nicks, tears or abrasions. Damage of this sort could happen during assembly or servicing. A sheared or cut o-ring can allow the pump’s compressed air supply to leak or bypass within the air valve assembly, causing the pump to leak compressed air from the pump air exhaust

Model ET2-M Type 1 Page 4 et2dl2sm-0614

+ 9 hidden pages

SANDPIPER ET2 - M User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual