Alemite 7836-A User manual

Brand: Alemite

Model: 7836-A

Type: User manual

Service Guide

SER 7836-A

7836-A

7836-C1

Alemite LLC

167 Roweland Drive, Johnson City, Tennessee 37601

www.alemite.com

2010 by Alemite LLC

This document contains confidential information that is the property of Alemite LLC

397566 and is not to be copied, used, or disclosed to others without express written permission. Revision 1-13

Figure 1 Control Valve Model 7836 Series

Model 7836-C1 Shown

Description

Model 7836-A and 7836-C1

Model 7836-A is designed with a metal-to-metal

valve (see Figure 2 for details) to dispense a variety

of non-abrasive materials.

Control valve model 7836-C1 contains a Buna-N

valve seal at the nozzle. This model is recommended

for light fluids and abrasive materials.

Swivel

The valve is equipped with an inlet swivel

assembly.

Operation

Squeeze the handle either partially or fully to

open the valve.

To latch the valve in the full open position, place

the clip over the valve’s handle. See Figure 1.

Specifications

Valve Model

Nozzle

Seal Type

Max. Operating

Pressure

psi Bars

7836-A

Metal-to-Metal

3000 207

7836-C1 Buna-N 2000 138

Table 1 Control Valve Model 7836 Series

Specifications

Control Valve

Valve Model Material Inlet Material Outlet

Weight

lbs kg

7836-A

1/2 " NPTF (f)*

3/8 " NPTF (f)

2-1/4 1

7836-C1

1/2 " NPTF (f)

* Early models are 1/2” NPTF(m)

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SER 7836-A Control Valve

Revision (1-13) 2 Alemite LLC

Figure 2 Control Valve Model 7836 Series - Exploded View

Early Models

Late Models

®222

™

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Control Valve SER 7836-A

Alemite LLC 3 Revision (1-13)

Item

No.

Part No. Description Qty

Valve Model

Notes

7836-A

7836-C1

1 131266 Gasket (Copper) 1 Both Models

2 Seat, Valve, 3/8 " NPTF (f) x 7/8 " -14 (m) 1

3 Pin, Roll, 3/32 " x 1/2 " Long 1

4 Valve Assembly 1

5Rod 1

6 Seat, Valve, 1/2 " NPTF (f) x 7/8 " -14 (m) 1

7 Valve Assembly (Buna-N Seal) 1

8Rod 1

9Body 1

Both Models

10 Setscrew, 10-32 x 1/4 " 1

11 Setscrew, 10-32 x 3/8 " 1

12 Washer (Leather) 1

13 X171000-5 O-Ring, 1/4 " ID x 3/8 " OD 4

14 Washer (Brass) 1

15 Nut, Packing 1

16 Link 1

17 Nut, 12 -28 1

18 Adapter 1

19 Spring 1

20 Guide 1

21 O-Ring, 11/16 " ID x 7/8 " OD 1

322145

Swivel Assembly, 1/2” NPTF(m) (early models)

340724

Swivel Assembly, 1/2” NPTF(f) (late models)

23 Handle 1

24 Pin 2

25 Clip 1

26 Pin, Adjusting Both Models

Legend:

Part numbers left blank are not available separately

Part numbers with an X prefix indicate a quantity of ten (10)

designates a repair kit item

Repair Kits

Part No. Kit Symbol Description

398723

Kit, Repair (for Valve Model 7836-A)

393761

Kit, Repair (for Valve Model 7836-C1)

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SER 7836-A Control Valve

Revision (1-13) 4 Alemite LLC

5. Unscrew Valve Seat (2 or 6) from the Body.

• Remove Gasket (1) from the Valve Seat.

6. Push the Rod assembly out the front of the Body.

7. Remove Link (16) from Handle (23).

Step for Model 7836-A

8. Remove Pin (3) that secures Valve Assembly (4) to the Rod.

• Remove the Valve Assembly from the Rod.

Step for Model 7836-C1

9. Unscrew Valve Assembly (7) from the Rod.

HINT: Screw Nut (17) and Guide (20) onto the

Rod. Use the Guide as a jam on the Nut to break

the connection.

10. Unscrew Packing Nut (15) from the Body.

• Use Adjusting Pin (26) or a similar tool as required.

11. Remove Brass Washer (14), four O-Rings (13), and Leather

Washer (12) from the Body.

12. Loosen Setscrews (10 and 11) that secure Pins (24 ) to the

Body as required.

• Remove the Pins from the Body.

13. Remove Handle (23) from the Body.

14. Unscrew Swivel Assembly (22) from the Body as required.

• Remove O-Ring (21).

Clean and Inspect

1. Clean all metal parts in cleaning solvent. The solvent should

be environmentally safe.

2. Inspect all parts for wear and/or damage.

• Replace as necessary.

3. Closely inspect the mating surfaces of all components for

any imperfections. Ensure a smooth and clean contact is

obtained when assembled.

Assembly

NOTE: Prior to assembly, certain components

require lubrication in oil. Refer to Table 2 for

details.

Overhaul

NOTE: Refer to Figure 3 for compo-

nent identification on the major compo-

nents of the valve assembly.

Prior to performing any maintenance procedure,

the following safety precautions must be observed.

Personal injury may occur.

WARNING

Do not use halogenated hydrocarbon

solvents such as methylene chloride or 1,1,1

trichloroethane in this valve assembly. An

explosion can result within an enclosed device

capable of containing pressure when alumi-

num and/or zinc-plated parts come in contact

with halogenated hydrocarbon solvents.

Release all pressure within the system prior to

performing any overhaul procedure.

• Disconnect the air supply line from the

pump motor.

• Into an appropriate container, operate the

control valve to discharge remaining pres-

sure within the system.

Never point a control valve at any portion of

your body or another person. Accidental dis-

charge of pressure and/or material can result

in personal injury.

Read each step of the instructions carefully.

Make sure a proper understanding is achieved

before proceeding.

Disassembly

NOTE: The following procedures pertain to

both models of control valves.

IMPORTANT: Adapter (18) is under spring

pressure. Use care during removal.

1. Unscrew Adapter (18) from Body (9).

2. Remove Spring (19) from the Body.

3. Loosen Guide (20) from Nut (17).

4. Unscrew and remove the Guide and Nut from Rod

(5 or 8).

Item No. Description

Washer (Leather) [Soak for 1 Hour]

O-Ring, 1/4 " ID x 3/8 " OD

O-Ring, 11/16 " ID x 7/8 " OD

Table 2 Components Lubricated with Clean Oil

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Control Valve SER 7836-A

Alemite LLC 5 Revision (1-13)

1. Install O-Ring (21) onto Swivel Assembly (22).

2. Screw the Swivel Assembly into Body (9).

• Tighten the Swivel Assembly securely.

3. Position Handle (23) onto the Body.

• Align the slots with the holes in the Body.

4. Install each Pin (24) through the Handle and into the

Body.

• Make sure each Pin is centered.

5. Tighten Setscrews (10 and 11) that secure the Pins to

the Body.

6. Install and seat Leather Washer (12), four O-Rings

(13), and Brass Washer (14) into the Body.

Figure 3 Control Valve Model 7836 Series - Section View

Refer to Figure 2 Parts List for Parts Identification

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SER 7836-A Control Valve

Revision (1-13) 6 Alemite LLC

7. Screw Packing Nut (15) into the Body.

• Do not tighten the Nut at this time.

8. Install Link (16) onto the pins of the Handle.

Steps for Model 7836-A

9. Install Valve Assembly (4) onto the Rod.

• Make sure the holes are in alignment

10. Install Pin (3) that secures the Valve Assembly to the

Rod.

Step for Model 7836-C1

11. Screw Valve Assembly (7) onto the Rod [with

HINT: Screw Nut (17) and Guide (20) onto

the Rod. Use the Guide to jam the Nut.

CAUTION

Install the Rod assembly with care. Use care

passing the Leather washer and O-Rings. Damage

to the Components can occur.

12. Install the Rod assembly into the front of the Body.

• Allow the Rod to travel through the Packing Nut and

just past the Link.

13. Install Nut (17) [round side first] onto the Rod.

• Screw the Nut almost to the end.

14. Drop Guide (20) through the rear portion of the Body

and onto the Rod.

15. Screw the Guide onto the Rod.

• Do not allow the Guide to contact the Nut.

16. Install and seat Spring (19) into the Body and into the

Guide.

17. Screw Adapter (18) into the Body.

• Tighten the Adapter securely.

18. Install Gasket (1) onto Valve Seat (2 or 6).

19. Screw the Valve Seat assembly into the Body.

• Tighten the Valve Seat securely.

Adjustments

Handle Adjustment

20. Adjust the Nut on the Rod until the Handle moves

freely 1/8 " (3.2 mm) at the bottom.

•See Figures 3 and 4.

IMPORTANT: The Rod may rotate with the

Nut during this procedure. Should this occur,

insert the Adjusting Pin into the Packing Nut

and tighten.

21. Tighten the Guide against the Nut.

O-Ring Compression

22. Using Adjusting Pin (26), tighten the Packing Nut into

the Body until it just begins to drag.

23. Tighten the Packing Nut 1/6 of a turn (one hole

position) further.

Installation

IMPORTANT: Apply thread sealant to all

pipe thread connections prior to assembly.

1. Connect the components of the extension assembly

(not included) and tighten securely.

2. Attach the delivery line to the Swivel Assembly.

• Tighten the connection securely.

Figure 4 Handle Free-Play Adjustment

and O-Ring Compression

Loctite 222 ].

™

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Control Valve SER 7836-A

Alemite LLC 7 Revision (1-13)

Test

WARNING

Do not exceed the lowest pressure rating

of any component in the system.

Never point a control valve at any portion of your

body or another person. Material discharged at

high velocity can penetrate the skin and cause

severe injury. Should any material appear to punc-

ture the skin, get medical care immediately.

Ensure all components are in operable condition.

Replace any suspect parts prior to operation.

Should leakage occur anywhere within the system,

disconnect power to the pump. Personal injury

can occur.

NOTE: Apply air pressure to allow the

pump to begin to cycle. Slowly increase the

air pressure to achieve the desired material

pressure.

1. Point the control valve into an appropriate collection

container.

2. Pull the control valve Handle and allow the material to

flow until it is free of air.

If the control valve does not dispense the product, refer

to the Troubleshooting Chart.

3. Release the Handle.

• The control valve should show no external leakage

and no product should appear at the Nozzle.

If the valve leaks, refer to the Troubleshooting Chart.

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SER 7836-A Control Valve

Revision (1-13) 8 Alemite LLC

Troubleshooting Chart

Control Valve Indications Possible Problems Solutions

Continuous product flow 1. Foreign material between Valve Assembly

(4) and Valve Seat (2) [Model 7836-A]

1. Foreign material between Valve Seat (6)

and valve seal within Valve Assembly (7)

[Model 7836-C1]

2. Valve Assembly (4) and /or Valve Seat (2)

worn or damaged [Model 7836-A]

2. Valve seal within Valve Assembly (7)

worn or damaged [Model 7836-C1]

3. Packing Nut (15) too tight

4. Handle (23) not adjusted properly (no play)

1. Disassemble, clean, and inspect

seat area. Check mating surfaces

and replace sealing components

as necessary.

Locate and eliminate source of

foreign material.

2. Replace Valve Assembly (4 or 7)

2. Replace Valve Seat (2)

3. Loosen Packing Nut (15)

4. Adjust Handle (23) free-play

Excessive force required to

operate valve

Handle (23) not adjusted properly

(too much play)

Adjust Handle (23) free-play

Product flow inadequate

Leakage at Packing Nut (15)1. O-Rings (13) and/or Leather Washer (12)

worn or damaged

2. Initial tightening of Packing Nut (15) not

sufficient

1. Replace O-Rings (13) and/or

Leather Washer (12)

2. Tighten Packing Nut (15) an

additional 1/6 turn

Leakage at Swivel

Assembly (22)

1. Initial tightening of Swivel Assembly (22)

not sufficient

2. O-Ring (21) worn or damaged.

1. Tighten Swivel Assembly (22)

2. Replace O-Rings (21)

Leakage at Valve Seat (2 or 6) 1. Initial tightening of Valve Seat (

2 or 6) not

sufficient

2. Gasket (1) worn or damaged.

1. Tighten Valve Seat (2 or 6)

2. Replace Gasket (1)

Leakage at extension assembly 1. Initial tightening not sufficient

2. Thread sealant missing or inadequate

1. Tighten leaking connection

2. Apply thread sealant* to male

pipe threads

Leakage at delivery line 1. Initial tightening not sufficient

2. Thread sealant missing or inadequate

1. Tighten leaking connection

2. Apply thread sealant* to male

pipe threads

* Do not apply thread sealant to the first two (2) threads. Contamination can occur.

Changes Since Last Printing

Added trademark attribution

Loctite and 222 are Trademarks of Henkel Corporation in the U.S. and elsewhere. ® denotes a trademark registered in the U.S. Patent and

Trademark Office.

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Alemite 7836-A User manual

Brand: Alemite

Model: 7836-A

Type: User manual

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Alemite 7836-A User manual

Alemite 7836-A User manual

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