Graco Md2 Dispense Valve Users Manual 339117A.f_FLY_MD2dispensevalve

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339117A.f_FLY_MD2dispensevalve

8/29/07

9:05 AM

Page 1

MD2 Dispense Valve
For Accurate Two-Component Dispensing

Designed to accurately dispense and mix plural-component sealants and adhesives
• Minimizes maintenance time and costs while maximizing dispense time
• Designed with fewer parts and is easy to clean
• Streamlines maintenance and service
• Complete modular design adapts to different installation needs
• No unique tools required
• Handles a wide range of materials

P R O V E N Q U A L I T Y. L E A D I N G T E C H N O L O G Y.

339117A.f_FLY_MD2dispensevalve

8/29/07

9:05 AM

Page 2

Ideal for Most Two-Component
Dispensing Applications
Technical Specifications
Ordering Information
Graco MD2 Dispense Valve
Valve Options
255179 1:1 soft seat, adjustable snuff-back

MD2 VALVE
Maximum fluid pressure

3000 psi (276 bar, 27.6 MPa)

Maximum cylinder air pressure

120 psi (8.4 bar, 0.84 MPa)

Minimum air cylinder actuating pressure

40 psi (2.8 bar, 0.3 MPa)

Maximum working fluid temperature

140˚F (60˚C)

Wetted parts

stainless steel, carbide, UHMWPE, acetal,
PEEK, PTFE

255180 1:1 hard seat, non-adjustable snuff-back

Gun weight

1.45 lbs (0.66 kg)

255181 Wide ratio, soft seat, adjustable snuff-back

Dimensions

6.64 in L x 2.32 in W x 2.25 in D
(168.7 mm L x 59 mm W x 57 mm D)

255182 Wide ratio, hard seat, non-adjustable snuff-back
Manual Gun Options
255442 1:1 hard seat, air-actuated gun, trigger

Fluid inlets

9/16-18 UNF (f) (06 SAE)

Air inlets

1/8 in npt

Instruction manual

312185

255445 Wide ratio, hard seat, air-actuated gun, trigger

Adjustable Snuff-back Control

255443 1:1 hard seat, electrically-actuated
counter-balanced valve, trigger

Dispenses material only where you need it

255446 Wide ratio, hard seat, electrically-actuated
gun, trigger

Independent Air
Cylinder

255444 1:1 hard seat, electrically-actuated
counter-balanced valve, lever

Improves mean time
to repair (MTTR)

255447 Wide ratio, hard seat, electrically-actuated
gun, lever
LC0004 1:1 soft seat, electrically-actuated
counter-balanced valve, trigger
LC0006 Wide ratio, soft seat, electrically-actuated
gun, trigger
LC0005 1:1 soft seat, electrically-actuated
counter-balanced valve, lever
LC0007 Wide ratio, soft seat, electrically-actuated
gun, lever

Chromex Shafts
™

Manual Gun Options

Extends shaft life to better

255220 MD2 hard seat rebuild kit, needle and nose

handle abrasive materials

255219 MD2 soft seat rebuild kit, needle and nose

Grease Isolation Chamber

255218 MD2 rebuild kit, back-end of wet section

• Ideal for moisture-sensitive materials

Adjustable Inlet Position

255217 MD2 rebuild kit, air cylinder

• Accessible grease fittings for easy
maintenance

• Flexibility during system installation
• Minimizes dead spaces in fluid path

255208 Electric switch handle
255206 Pneumatic switch handle
255249 Actuated lever

All-SST Wetted Section

255273 Hanger adapter

Maximizes material compatibility

Contact us today! To receive
product information or to request
a hands-on demonstration,
call 1-877-84GRACO or visit us
online at www.graco.com.
©2007 Graco Inc. Form No. 339117 Rev. A 9/07 All other brand names or
marks are used for identification purposes and are trademarks of their respective
owners. All written and visual data contained in this document are based on the
latest product information available at the time of publication. Graco reserves the
right to make changes at any time without notice.

Manual Dispense
Gun Option

Two Nose Options
Customizes material mixing

Lever-Actuated
Dispense Valve



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