VERDER VA 50 Manuale operativo

819.4496

Rev. ZAL

INSTRUCTIONS – PARTS LIST

For fluid transfer applications. For professional use only.

8.3 bar Maximum Fluid Working Pressure

8.3 bar Maximum Air Input Pressure

Patent No.

CN ZL941026434.4

FR 9408894

JA 35107270

US 5,368,452

*Applies only to pumps with

conductive polypropylene fluid

sections.

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

II 2 GD

Ex h IIC 66°C...135°C Gb

Ex h IIIC T135°C Db

04613B

CONDUCTIVE POLYPROPYLENE*, POLYPROPYLENE AND PVDF

VERDERAIR VA 50

Air-Operated

Diaphragm Pumps

2 819.4496

Table of Contents

Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Pressure Relief Procedure . . . . . . . . . . . . . . . . 13

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Repairing the Air Valve . . . . . . . . . . . . . . . . . . . 16

Ball Check Valve Repair . . . . . . . . . . . . . . . . . . 18

Diaphragm Repair . . . . . . . . . . . . . . . . . . . . . . . 19

Bearing and Air Gasket Removal . . . . . . . . . . .23

Repair Kit Listing . . . . . . . . . . . . . . . . . . . . . . . . . . 25

819.4496 3

Configuration Number Matrix

Check the identification plate (ID) for the 15–digit Configuration Number of your pump. Use the following matrix to define

the components of yourpump.

Sample Configuration Number: VA50PA – SS TF TF FE 00

NOTE: Some combinations are not possible. Please check with your local supplier or www.verderair.com.

VA50 P A SS TF TF FE 00

Pump Model Fluid Section Air Section Seats Checks Diaphragms Connections Options

Pump Model

(1 and 2) Fluid Section Material

(3) Air Section Material

(4) Seats

(5)

VA50 C Conductive

Polypropylene* AAluminum BN Buna–N

KPVDF SStainlessSteel HY TPE

PPolypropylene KY PVDF

PP Polypropylene

SP Santoprene

SS StainlessSteel

VT FKM

Balls

(6) Diaphragm

(7) Connections

(8) Options

(9)

BN Buna–N BN Buna–N FE End Flange 00 Standard

GE Geolast GE Geolast RE Remote

HY TPE HY TPE

SP Santoprene SP Santoprene

TF PTFE TF PTFE/EPDM

2–Piece

VT FKM TO PTFE/EPDM

Overmolded

VT FKM

*Conductive Polypropylene is certified: II 2 GD ATEX T-code rating is dependent on the temperature of the

fluid being pumped. Fluid temperature is limited by the ma-

terials of the pump interior wetted parts. See Technical

Data for the maximum fluid operating temperature for your

specific pump model.

Ex h IIC 66°C...135°C Gb

Ex h IIIC T135°C Db

4 819.4496

Symbols

Warning Symbol Caution Symbol

Warning

This symbol alerts you to the possibility of serious injury

or death if you do not follow the instructions.

Caution

This symbol alerts you to the possibility of damage to or

destruction of equipment if you do not follow the

instructions.

Warning

INSTRUCTIONS

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.

•This equipment is for professional use only.

•Read all instruction manuals, tags, and labels before operating theequipment.

•Use the equipment only for its intended purpose. If you are not sure, call VERDER After Sales Service.

•Do not alter or modify thisequipment.

•Check equipment daily. Repair or replace worn or damaged parts immediately.

•Do not exceed the maximum working pressure of the lowest rated component in your system. This

equipment has a 8.3 bar maximum working pressure at 8.3 bar maximum incoming air pressure.

•Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Technical

Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.

•Do not use hoses to pull equipment.

•Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose

VERDER hoses to temperatures above 82°C or below -40°C.

•Do not lift pressurized equipment.

•Wear hearing protection when operating this equipment.

•Comply with all applicable local, state, and national fire, electrical, and safety regulations.

819.4496 5

Warning

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin, inhaled, or

swallowed.

•Know the specific hazards of the fluid you areusing.

•Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local, state,

and national guidelines.

•Alwayswearprotective eyewear,gloves,clothing,andrespirator asrecommendedbythe fluidandsolvent

manufacturer.

•Pipe and dispose of the exhaust air safely, away from people, animals, and food handling areas. If the

diaphragm fails, the fluid is exhausted along with the air. See Air Exhaust Ventilation on page 12.

FIRE AND EXPLOSION HAZARD

Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a

fire or explosion and seriousinjury.

•Ground the equipment. Refer to Grounding on page6.

•Never use a non–conductive polypropylene or PVDF pump in an explosive atmosphere or with non-

conductive flammable fluids as specified by your local fire protection code. Refer to Grounding on page6

for additional information. Consult your fluid supplier to determine the conductivity or resistivity of your

fluid.

•If there is any static sparking or you feel an electric shock while using this equipment, stop pumping

immediately. Do not use the equipment until you identify and correct theproblem.

•Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid being

sprayed, dispensed, or transferred.

•Pipe and dispose of the exhaust air safely, away from allsources ofignition. If thediaphragm fails,the fluid

is exhausted along with the air. See Air Exhaust Ventilation on page 12.

•Keep the work area free of debris, including solvent, rags, andgasoline.

•Electrically disconnect all equipment in the work area.

•Extinguish all open flames or pilot lights in the workarea.

•Do not smoke in the work area.

•Do not turn on or off any light switch in the work area while operating or if fumes are present.

•Do not operate a gasoline engine in the workarea.

6 819.4496

Installation

General Information

1. The Typical Installation shown in FIG. 2 is only aguide

for selecting and installing systemcomponents. Contact

your VERDER Customer Service for assistance

in planning a system to suit yourneeds.

2. Always use Genuine VERDER Parts andAccessories.

Be sure all accessories are adequately sized and

pressure-rated to meet the system’srequirements.

3. Reference numbers and letters in parentheses refer to

the callouts in the figures and the parts listson pages

28–29.

4. Variations in color between the plastic componentsof

this pump are normal. Color variation does not affect the

performance of the pump.

Tightening Screws Before First Use

Before using the pump for the first time, check and retorque

all external fasteners. See Diaphragm Kits, page 29.After

the first day of operation, retorque the fasteners. Although

pump use varies, a general guideline is to retorque fasteners

every twomonths.

Grounding

The non–conductive polypropylene and PVDF pumps are

not conductive. Attaching the ground wire to the grounding

strip grounds only the airmotor.

When pumping conductive flammable fluids,always ground

the entire fluid system by making sure the fluid has an

electrical path to a true earth ground. See FIG. 1.

Never use a non–conductive polypropylene or PVDF pump

in an explosive atmosphere or with non-conductive

flammable fluids as specified by your localfire protection

code.

U.S. Code (NFPA 77 Static Electricity) recommendsa

conductivity greater than 50 x 10–12 Siemans/meter

(mhos/meter) over your operating temperature range to

reduce the hazard of fire. Consult your fluid supplier to

determine the conductivity or resistivity of yourfluid. The

resistivity must be less than 2 x 1012 ohm-centimeters.

Warning

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes cancause

serious injury or death if splashed in the

eyes or on the skin, inhaled, orswallowed.

1. Read TOXIC FLUID HAZARD on page 5.

2. Use fluids and solvents which are compatible with the

equipment wetted parts. Refer to the Technical Data

section of all equipment manuals. Read the fluid and

solvent manufacturer’s warnings.

Warning

FIRE AND EXPLOSION

HAZARD

This pump must be grounded. Before

operating the pump, ground the system

as explained below. Also, read the

section FIRE AND EXPLOSION

HAZARD, on page 5.

819.4496 7

Installation

Grounding (continued)

To reduce the risk of static sparking, ground the pump and

all other equipment used or located in the pumping area.

Check your local electrical code for detailed grounding

instructions for your area and type of equipment.

Ground all of this equipment:

•Air Motor: Connect a ground wire and clamp as shown

in FIG. 1. Loosen the grounding screw (W). Insert one

end of a 1.5 mm2minimum ground wire (Y) behind the

grounding screw and tighten the screw securely.

Connect the clamp end of the ground wire to a true

earth ground. Order Part No. 819.0157 Ground Wire

and Clamp.

NOTE: When pumping conductive flammable fluids with a

non–conductive polypropylene or a PVDF pump,

always ground the entire fluid system. See the

Warning on page 6.

•Air and Fluid hoses: Use only electrically conductive

hoses.

•Air compressor: Follow the manufacturer’s

recommendations.

•All solvent pails used when flushing, according to local

code. Use only metal pails, which are conductive. Do

not place the pail on a non-conductive surface, such as

paper or cardboard, which interrupts the grounding

continuity.

•Fluid supply container: Follow local code.

FIG. 1 ________________________

02646B

8 819.4496

Installation

Air Line

1. Install the air line accessories as shown in FIG. 2. Mount

these accessories on the wall or on a bracket. Be sure

the air line supplying the accessories is electrically

conductive.

a. Install an air regulator (C) and gauge to control

the fluid pressure. The fluid outlet pressure will be

the same as the setting of the air regulator.

b. Locate one bleed-type master air valve (B) close

to the pump and use it to relieve trapped air. See

the Warning at left. Locate the other master air

valve (E) upstream from all air line accessories

and use it to isolate them during cleaning and

repair.

c. The air line filter (F) removes harmful dirt and

moisture from the compressed air supply.

2. Install an electrically conductive, flexible air hose(A)

between the accessories and the 1/2 npt(f) pumpair

inlet (N). See FIG. 2. Use a minimum 13 mm ID air hose.

3. Screw an air line quick disconnect coupler (D) onto the

end of the air hose (A); be sure the coupler porting is

large enough to not restrict the air flow, which will affect

pump performance. Screw the mating fitting intothe

pump air inlet snugly. Do not connect the coupler (D) to

the fitting until you are ready to operate the pump.

FLOOR MOUNT TYPICAL INSTALLATION

FIG. 2 _______________________________________________________________________

Warning

A bleed-type master air valve (B) is required in your system

to relieve air trapped between this valve and the pump.

Trapped air can cause the pump to cycleunexpectedly,

which could result in serious injury, including splashing in

the eyes or on the skin, injury from moving parts, or

contamination from hazardous fluids. See FIG. 2.

FEB C

04614B

KEY

A ElectricallyConductiveAirSupplyHose

B Bleed-Type Master Air Valve

(requiredforpump)

C AirRegulator

D Air Line QuickDisconnect

E Master Air Valve (foraccessories)

F Air Line Filter

G Fluid Suction Hose

HFluidSupply

J FluidDrainValve(required)

K Fluid Shutoff Valve

L FluidHose

N 1/2npt(f)Air Inlet Port

R 2 in. Fluid InletFlange

S 2 in. Fluid OutletFlange

Y GroundWire(required;seepage7 for

installationinstructions)

819.4496 9

Installation

Mountings

1. Be sure the mounting surface can support the weight of

the pump, hoses, and accessories, as well as the stress

caused during operation.

2. For all mountings, be sure the pump is bolted directly to

the mounting surface.

3. For ease of operation and service, mount the pump so

the air valve cover (2), air inlet, and fluid inlet and outlet

ports are easily accessible.

4. Rubber Foot Mounting Kit 819.4333 is available to

reduce noise and pump movement duringoperation.

5. Prolonged exposure to UV radiation will degrade natural

polypropylene components of the pumps. To prevent

potential injury or equipment damage, do not expose

pump or the plastic components to direct sunlight for

prolonged periods.

Fluid Suction Line

1. The pump fluid inlet (R) is a 2 in. raised face flange.

Refer to Flange Connections on page10.

2. Ifthe fluidinlet pressuretothe pumpis morethan 25%of

theoutlet workingpressure, theball checkvalveswill not

close fast enough, resulting in inefficient pump

operation.

3. At inlet fluid pressures greater than 1.05 bar, diaphragm

life will be shortened.

4. See the Technical Data on page 33 for maximum

suction lift (wet and dry).

Fluid Outlet Line

1. The pump fluid outlet (S) is a 2 in. raised face flange.

Refer to Flange Connections on page10.

2. Install a fluid drain valve (J) near the fluid outlet. See the

Warning above.

3. Install a shutoff valve (K) in the fluid outletline.

Caution

The pump exhaust air may contain contaminants. Ventilate

to a remote area if the contaminants could affect your fluid

supply. See Air Exhaust Ventilation on page 12.

Warning

A fluid drain valve (J) is required to relieve pressure in

the hose if it is plugged. The drain valve reduces the risk

of serious injury, including splashing in the eyes or on

the skin, or contamination from hazardous fluids when

relieving pressure. Install the valve close to the pump

fluid outlet. See FIG. 2.

10 819.4496

Installation

Flange Connections

The fluid inlet and outlet ports are 2 in. raised face, standard

150 lb class pipe flanges. Connect 2 in. flanged plastic pipe

to the pump as follows. You will need:

•torque wrench

•adjustable wrench

•a 6 in. diameter, 1/8 in. thick PTFE gasket, with four 0.75 in.

diameter holes on a 4.75 in. diameter bolt circle, and a

2.20 in. diametercenter

•four 5/8 in. x 3 in.bolts

•four 5/8 in. spring lockwashers

•eight 5/8 in. flat washers

•four 5/8 in. nuts.

1. Place a flat washer (E) on each bolt (C). Refer to FIG. 3.

2. Align the holes in the gasket (B) and the pipe flange (A)

with the holes in the pump outlet flange(S).

3. Lubricate the threads of the four bolts. Install the bolts

through the holes and secure with the washers (E),

lockwashers (D), and nuts (F).

4. Hold the nuts with a wrench. Refer to the tightening

sequence in FIG. 3 and torque the bolts to 27–41 N•m.

Do not over-torque.

5. Repeat for the pump inlet flange(R).

BOLT TIGHTENING SEQUENCE

FIG. 3 _______________________________________________________________________

04405

04615B

KEY

A FlangedPlasticPipe

B PTFEGasket

C Bolt

D Lockwasher

E Flat Washer

F Nut

R 2 in. Fluid Inlet Flange

S 2 in. Fluid Outlet Flange

Lubricate threads. Torque to 27–41 N•m. Do

not over-torque.

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