OPERATOR’S MANUAL 3” DIAPHRAGM PUMP (BA80XX-XXXX-X)

Model Description Chart

BA80XX-XXXX-X Porting Options

A-BSP B-NPT C- Flange

O-ring materials

0- N/A 1-NBR 2-EPDM 3-PTFE(Full)

Diaphragm Materials

9 - Santoprene® H – Hytrel® T - PTFE/Santoprene®

Ball Materials

9 - Santoprene® H - Hytre® T - PTFE

Seat Material

S –Stainless steel C - Cast Iron 0 –Aluminum 9 – Santoprene® D - POM

Wetted Material

AL –Aluminum SS –Stainless steel CI –Cast Iron

Pump Data Max. Temperature Limits (Diaphragm/ball/sealed material)

Description Data Material Application temperature range

Porting size (inch) 3” POM 10°-180°F (-12°- 82°C)

Center body material Aluminum Santoprene® -40°- 225°F (-40°- 107.2°C)

Max. air inlet pressure (Mpa) 0.83 PTFE 40°- 220°F (4.4°- 104°C)

Max. flow rate (lpm) 903 Nitrile 10°- 180°F (-12°- 82°C)

Max. dry suction (m) 5.3 FKM -0°- 392°F (-18°-200°C)

Displacement / cycle (L) 7.67 PVDF -20°-150°F (-12°- 93°C)

Max. Particle size (mm) 9.0 Hytrel® 10°-200°F (-28.9°- 65.5°C)

Noise level @70psi (dB) 75 Polypropylene 32°- 175°F (0 -79.4°C)

Weight (kg) Nylon -40°- 248°F (-40°- 120°C)

Aluminum 42 EPDM -60°-280°F (-51°- 138°C)

Stainless steel 95

Cast Iron 91

BSK Fluid Technology LLC

Add: 3625 Aqua Spring Drive Plano, Tx75025 U.S.A

E-mail: sales@bskfluid.com

http://www.bskfluid.com

PN 6461-12

Revised: 2017-4-18

Rev: B

6461-6 2 BSK Fluid Technology LLC

SAFETY AND MAINTANANCE INFORMATION

Operating and safety prevention

Read, understand and follow this information to avoid injury and property damage.

Do not exceed the maximum inlet air pressure as stated on the pump model plate.

The air inlet of the pump is connected to the air supply that has sufficient capacity and of which pressure conforms to the design

requirements.

The clean compressed air makes for the extension of the service life of the pump.

If the air supply line is a hard pipe, the short hose connecting the pump and the pipe can reduce vibration and twisting. (It is

recommended to reduce the pulse in the fluid with a use a surge tank or fluid buffers.)

The air intake pipe of the pump must be installed with the pressure regulating valve to ensure the air supply pressure doesn’t exceed the

specified range.,

Pumps’ air inlet should be installed a pressure regulating valve to make sure the supplied air pressure doesn’t exceed the limits.

Do not make your pumps working in the EXCESSIVE AIR PRESSURE in a long time. Can cause pump damage, personal injury or

property damage.

Make sure the hoses and other components can endure the fluid pressure of the pumps. Check all hoses for are not damage or worn. To

ensure that the distribution device is clean and reliable.

STATIC SPARK. Can cause explosion resulting in severe injury or death. Ground pump and pumping system.

Sparks can ignite flammable material and vapors.

Secure pump, connections and all contact points to avoid vibration and generation of contact or static spark.

To use the correct ventilation equipment..

To make flammable items away from heat, open flames and sparks.

When not in use, please close the container.

Pump exhaust may contain contaminants. Can cause severe injury. Pipe exhaust away from work area and personnel.

In the event of a diaphragm rupture material can be forced out of the air exhaust muffler.

Pipe the exhaust to a safe remote location when pumping hazardous or inflammable materials.

Use a grounded3/8”minimum i.d. hose between the pump and the muffler.

HAZARDOUS PRESSURE. Can result in serious injury or property damage. Do not service or clean pump, hoses or dispensing valve

while the system is pressurized. Disconnect air supply line and relieve pressure from the system by opening dispensing valve or device

and / or carefully and slowly loosening and removing outlet hose or piping from pump.

HAZARDOUSMATERIALS. Can cause serious injury or property damage. Do not attempt to return a pump to the factory or service

center that contains hazardous material. Safe handling practices must comply with local and national laws and safety code

requirements.

Obtain Material Safety Data Sheets on all materials from the supplier for proper handling instructions.

EXPLOSION HAZARD.Models containing aluminum wetted parts cannot be used with 1,1,1-trichloroethane, methylene chloride

or other halogenated hydrocarbon solvents which may react and explode.

Check pump motor section, fluid caps, manifolds and all wetted parts to assure compatibility before using with solvents of this type.

The pump should be placed close to the product as possible to shorten t the suction pipe and reduce the number of parts to the

greatest extent.

To extend the service life to diaphragm, we must to place the pump close to the pumped fluid as much as possible. When the inlet

pressure exceeds 10 feet (3 meters) of the fluid column, it is necessary to install a set of pressure relief and regulation devices to extend

the service life of diaphragm.

We must ensure the sealing of each adapter for the inlet and outlet pipes.

All the fasteners must be tightened once again prior to the use of the product to avoid the looseness that may arise out of the creep of

the seal components and effectively prevent the leakage of fluid or air.

Verify the chemical compatibility of the pump wetted parts and the substance being pumped, flushed or re-circulated. Chemical

BSK Fluid Technology LLC 3 6461-6

compatibility may change with temperature and concentration of the chemical(s) within the substances being pumped, flushed or

circulated. For specific fluid compatibility, consult the chemical manufacturer.

Maximum temperatures are based on mechanical stress only. Certain chemicals will significantly reduce maximum safe operating

temperature. Consult the chemical manufacturer for chemical compatibility and temperature limits.

Be certain all operators of this equipment have been trained for safe working practices, understand its limitations, and wear safety

goggles / equipment when required.

Do not use the pump for the structural support of the piping system. Be certain the system components are properly supported to

prevent stress on the pump parts.

Suction and discharge connections should be flexible connections (such as hose), not rigid piped, and should be compatible with the

substance being pumped.

Prevent unnecessary damage to the pump. Do not allow pump to operate when out of material for long periods of time.

It is a must to prevent unnecessary damage to the pump. If it has to lie idle for a long time, please clean it thoroughly after each use.

The product left in the pump will become dry or sticky on the pump, which will give rise to the diaphragm and valve problems prior to

the next start. At the freezing temperature, it is must to empty the pump completely under any circumstances after use.

General Description

The BSK diaphragm pump offers high volume delivery even at low air pressure and a broad range of material compatibility options

available. BSK pumps feature stall resistant design, modular air motor / fluid sections.

Air operated double diaphragm pumps utilize a pressure differential in the air chambers to alternately create suction and positive fluid

pressure in the fluid chambers, ball checks insure a positive flow of fluid.

Pump cycling will begin as air pressure is applied and it will continue to pump and keep up with the demand. It will build and maintain

line pressure and will stop cycling once maximum line pressure is reached (dispensing

device closed) and will resume pumping as needed.

Air and Lube Requirements

EXCESSIVE AIR PRESSURE. Can cause pump damage, personal injury or property damage.

A filter capable of filtering out particles larger than 50 microns should be used on the air supply. There is no lubrication required other

than the “O” ring lubricant which is applied during assembly or repair.

If lubricated air is present, make sure that it is compatible with the“O”rings and seals in the air motor section of the pump.

Operating Instructions

Always flush the pump with a solvent compatible with the material being pumped if the material being pumped is subject to “setting

up” when not in use for a period of time.

Disconnect the air supply from the pump if it is to be inactive for a few hours.

The outlet material volume is governed not only by the air supply but also by the material supply available at the inlet. The material

supply tubing should not be too small or restrictive. Be sure not to use hose which might collapse.

When the diaphragm pump is used in a forced-feed (flooded inlet) situation, it is recommended that a “Check Valve” be installed at the

air inlet.

Maintenance

Refer to the part views in the assembly chart for the parts’ number and name to understand the information of the part and service

kits.

Parts which marked with “△”, to prepare these parts in hand will help you save time for fast maintenance and reduce downtime.

Service kits are divided to service two separate diaphragm pump functions: Air section and fluid section. The fluid section is further

divided to match the material options for typical parts.

Provide a clean work surface to protect sensitive internal moving parts from contamination from dirt and foreign matter during service

disassembly and reassembly.

6461-6 4 BSK Fluid Technology LLC

Keep good records of service activity and include pump in preventive maintenance program.

Before disassembling, empty captured material in the outlet manifold by turning the pump upside down to drain material from the

pump.

Reassembly

All sealed parts and the connected positions need to be coated with grease.

All re-use sealed parts need to be checked if there has damage. If there has damage on the surface, please to use a new one.

The lip direction of the lip shape seal ring need to install to the directed direction on the chart.

Bolts on the fluid cap need to be fastened alternating to ensure the better sealing effect..

Trouble Shooting

1. Air exhaust has pumping product

Check if the diaphragm (B-07)(B-08) be damaged

Check if the diaphragm bolts (B-10) loosening

2. The pumping product has air bubble

Check the suction pipe joints are well sealed

Check the suction pipe and fluid inlet manifold (B-02) are well sealed

Check the O-ring (B-06) between inlet manifold (B-02) and fluid cap (B-03) are well sealed

Check the tightness of diaphragm bolts (B-10)

3. Low output volume

Check the air supply

Check whether the inlet and outlet hose is blocked

Check the joint to the fluid inlet manifold (B-02) is sealed and not leakage

Check if the ball (B-04) stick to the ball seat (B-05) or ball seat (B-05) is not suitable

4. Air exhaust in the case of reciprocating motion stopping

Check the sealed ring (A-05) at the main air valve

Check the sealed ring (A-18) at the pilot rod valve

Check the sealed ring (A-29) on the diaphragm rod

AIR MOTOR SECTION (BA80-P1)

PART LIST

Item Desc P/N Mtl Qty

Item Desc P/N Mtl Qty

Item Desc P/N Mtl Qty

A-01 Retainer 6232-1 SS 2

A-13 Gasket 6216 B 1

A-25 O-ring 6222-2 B 4

A-02 Plug 6219 PP 2

A-14 Plate 6206 Ce 1

A-26 Gasket 6217 B 2

A-03 O-ring 6222-1 B 4

A-15 Insert 6207 Ce 1

A-29 O-ring 6474-4 U 1

A-04 Sleeve 6220 Br 2

A-16 Center body 6213-4 AL 1

A-30 Rod 6467 CS 1

A-05 Y-ring 6221-3 B 2

A-17 Rod 6471 D 1

A-31 O-ring 6222-17 B 2

A-06 Spool 6218 D 1

A-18 O-ring 6474-2 U 4

A-32 Sleeve 6469 D 1

A-07 Housing 6299 AL 1

A-19 Actuator

pin

6473-1 D 2

A-33 Air cap 6345-6 AL 1

A-08 Screw 6236-2 SS 4

A-20 Sleeve 6470 Br 2 Material Code: SS= Stainless Steel

PP= Polypropylene B=NBR Br=Brass

AL= Aluminum Alloy Ce=Ceramic D=POM

CS=Carbon steel U=Urethane

A-09 Insert 6205 Ce 1

A-21 Backup

washer

6336 CS 2

A-10 Plate 6204 Ce 1

A-22 Screw 6236-1 CS 4

A-11 Gasket 6257 B 1

A-23 Air cap 6345-5 AL 1

A-12 Plate 6215-1 AL 1

A-24 Muffler 6297 CS 1

BSK Fluid Technology LLC 5 6461-6

Air Motor service

Distribution Valve Disassembly

Remove screw (A-08). Remove housing assembly (A-07).Remove gasket (A-11),plate(A-12),gasket(A-13).Remove plate(A-10) and insert(A-09)

from housing(A-07).Remove plate(A-14) and insert(A-15) from center body (A-16)

Distribution Valve Reassembly

Inspect and replace old parts with new parts as necessary.

Install insert (A-15) into center body (A-16). Which end side with fit face to housing (A-07).Install plate (A-14), which smooth side face to

center body (A-16). Install insert (A-09) into housing (A-07). Which end side with fit face to center body (A-16).Install plate (A-10), which

smooth side face to housing (A-07).

Install gasket (A-11)(A-13),plate (A-12) and housing assembly (A-07) to center body (A-16).

Major Valve Disassembly

Remove retainer (A-01).Remove plug (A-02), O-ring (A-03), spool (A-06) and Y-ring (A-05).Remove sleeve (A-04),O-ring (A-03)

Major Valve reassembly

Inspect and replace old parts with new parts as necessary. Lubricate O-ring, Y-ring and moving surface.

Install O-ring (A-03) onto sleeve (A-04). Then push them together into housing (A-07).

Install Y-ring (A-05) onto spool (A-06). Which lip face to middle of spool. Then push them into housing (A-07)

Install O-ring (A-03) onto plug (A-02). Press them into housing (A-07). Install retainer (A-01)

Pilot Valve Disassembly

Remove bolt (A-22). Remove air cap (A-23) (A-33),O-ring (A-25),gasket (A-26),actuator (A-19), rod (A-17). Remove O-ring (A-18) from

actuator (A-19) and rod (A-17)

Remove sleeve (A-32), O-ring (A-31)

Pilot Valve Reassembly

Inspect and replace old parts with new parts as necessary. Lubricate O-ring and moving surface.

Install O-ring (A-31) onto sleeve (A-32). Then push them into air cap (A-23)

Install O-ring (A-18) onto actuator (A-19) and rod (A-17).Press a actuator (A-19) and rod (A-17) into sleeve (A-20). Then push them into

center body (A-16).Install another actuator (A-19) into another sleeve (A-20) and push them into center body (A-16).

Install O-ring (A-25) and gasket (A-26) onto center body (A-16).Cover center body assembly onto air cap (A-23). Cover air cap (A-33) onto

center body assembly. Clamp them by bolt (A-16).

Torque Requirements:

A-08:4.5-6.0 Nm

A-22:14-16 Nm

Item with “△” is spare part. Keep them on hand in

addition for fast repair and reduction of down

time. Those items are included in service kit

6395-BA80-P1

6461-6 6 BSK Fluid Technology LLC

FLUID SECTION

Torque Requirements:

B-10: 88-95 Nm

B-11, B-13: 81-95 Nm

Item with “△” is spare part.

Keep them on hand in addition

for fast repair and reduction of

down time. Those items are

included in service kit 6396-X

(X-pump model, for example:

BA80AL-0TT3-A)

BA80AL-XXXX-X

BA80CI-XXXX-X

BA80SS-XXXX-C

BA80CI-XXXX-C

Wet Section Service

Disassembly

Remove manifold (B-02),O-ring (B-06),seat

(B-05),ball (B-04).

Remove manifold (B-01),O-ring (B-06),seat

(B-05),ball (B-04).

Remove fluid cap (B-03)

Remove screw (B-10), washer (B-09),

diaphragm (B-08)(B-07),washer (A-21), rod

(A-30), O-ring (A-29).

Reassembly

Reassemble in reverse order.

Inspect and replace old parts with new parts

as necessary.

Lubricate O-ring (A-29) and rod (A-30)

Apply Loctite 243 to threads of screw (B-10)

BSK Fluid Technology LLC 7 6461-6

Fluid cap/Manifold/Hardware

Material Code

AL= Aluminum Alloy SS= Stainless Steel Sp=Santoprene® T=PTFE

CI=Cast Iron CS=carbon steel T/c= PTFE(Cover） B= Nitrile

EP=EPDM Hy=Hytrel® D=POM

“B-05”Seat Options

Par

t N

um

ber

qu

anti

ty

Mat

eria

l

BA

80

XX

-DX

XX

-X

BA

80

XX

-9X

XX

-X

BA

80

XX

-SX

XX

-X

BA

80

XX

-0X

XX

-X

BA

80

XX

-CX

XX

-X

6435-1 4 Sp Y

6341 4 D Y

6341-2 4 AL Y

6434 4 SS Y

6434-1 4 CI Y

“B-04”Ball Options

Par

t N

um

ber

qu

anti

ty

Mat

eria

l

BA80XX-XT

XX-X

BA80XX-X9

XX-X

BA80XX-XH

XX-X

6340 4 T Y

6339-1 4 Sp Y

6339-2 4 Hy Y

Diaphragm Options

Item

Par

t N

um

ber

qu

anti

ty

Mat

eria

l

BA80XX-XXTX-

X

BA80XX-XX9X-

X

BA80XX-XXHX-

X

B-07 6337 2 Sp Y

B-07 6335-1 2 Sp Y

B-07 6335-2 2 Hy Y

B-08 6338 2 T Y

“B-06”O-ring Options

Par

t N

um

ber

qu

anti

ty

Mat

eria

l

BA80XX-XXX3

-X

BA80XX-XXX1

-X

BA80XX-XXX2

-X

6238-7 4 T Y

6222-18 4 B Y

6284-4 4 EP Y

Item

Des

crip

tio

n

Par

t N

um

ber

qu

anti

ty

Mat

eria

l

BA

80

AL-

XX

XX

-A

BA

80

SS-X

XX

X-C

BA

80

CI-

XX

XX

-A

B-01 Manifold 6343-2 1 AL Y

B-01 Manifold 6431 1 SS Y

B-01 Manifold 6440 1 CI Y

B-02 Manifold 6344-2 1 AL Y

B-02 Manifold 6432 1 SS Y

B-02 Manifold 6442 1 CI Y

B-03 Fluid cap 6342 2 AL Y

B-03 Fluid cap 6430 2 SS Y

B-03 Fluid cap 6441 2 CI Y

B-09 Washer 6336 2 AL Y

B-09 Washer 6433-1 2 CS Y

B-09 Washer 6433 2 SS Y

B-16 Washer 6251 2 SS Y

B-10 Screw 6293 2 SS Y Y Y

B-13 Bolt 6476-3 20 CS Y Y

B-13 Bolt 6230-10 20 SS Y

B-11 Bolt 6476-2 16 CS Y Y

B-11 Bolt 6230-1 16 SS Y

6461-6 8 BSK Fluid Technology LLC

A AIR INLET 3/4 NPT

B AIR EXHAUST 3/4 NPT

C INLET 3-11 BSP Rp

D OUTLET 3-11 BSP Rp

E INLET 3"ANSI/DIN FLANGE

F OUTLET 3"ANSI/DIN FLANGE

Dimensional Data

BA80AL-XXXX-X & BA80CI-XXXX-A BA80SS-XXXX-C & BA80CI-XXXX-C

TYPICAL PUMP CONNECTION TYPICAL PUMP APPLICATION

INJECTIONair exhaust

air

inlet

SUCTION

SUBMARINE