Instruction/ maintenance manual of the product 3A0427B Graco
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3A0427B EN Instructions-Parts Low Flow Fluid Regulator Pneumatic controlled fluid regulator provides accurate, positive pressure c ontrol of finishing coatings in low flow applications. For profe ssional use only. 100 p si (0.7 MP a, 7 bar ) Maxi mum Ai r Inlet P ressu re 300 p si (2.
Warnings 2 3A042 7B Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Mount the Fl uid Reg ulator . . . . . . . . . . . . . . . . . . 4 Grounding .
Warn ings 3A042 7B 3 W ARNING W ARNING W ARNING W ARNING PRESSURIZED EQUIPMENT HAZARD Fluid from the g un/dis pense valv e, leaks , or rup tured compo nents can s plash in the eyes or on ski n and cause s erious injury .
Inst allation 4 3A042 7B Installa tion Mount the Fl uid R egula tor See F IG . 1. M ount the fluid re gulator (C) in a locat ion close to the fl uid disp ense d evice. A mounting brac ket (D) i s sup pli ed . See Dimensions on page 14 for mount - ing infor matio n.
Installa tion 3A042 7B 5 Key: A Air Sup ply Line to High Port B Air Supply Line to L ow Port C Low Fl ow Fluid R egulator D Mountin g Bracket (suppl ied) E Grounde d Mounting Su rface F Regul ated Flu.
Inst allation 6 3A042 7B.
Operatio n 3A042 7B 7 Operation Pressure Relief Procedure 1. Shut off th e fluid supply . 2. Leave on the air to the fluid re gulato r. 3. Trigger the gun to relieve the flu id pres sure.
Troub leshooti ng 8 3A042 7B Troubleshoot ing Relieve the pressur e (page 7) be fore che cking or rep airing t he equi pment. To repair the regu lator , refer t o page 1 0. Problem Cau se So lution No fluid fl ow. Plugged fluid inlet. Flush fluid li ne and regulato r.
Troubles hootin g 3A042 7B 9 Fluid flow will not shu t off. Dirty needl e (6) and s eat (5) . Remove and clean. Replace if worn or dama ged. Se e page 10. Inlet air i s not shu t off. Shut off i nlet air. Seat ret ainer (7) is l oose. Tighte n. Broken spring (13).
Repai r 10 3A042 7B Repair Disassembly 1. Flush the r egulator with a c ompatible solv ent. See page 7. 2. Relieve pressu re. See p age 7. 3. Disconn ect the air an d fluid line s from the r egulato r. Remove the reg ulator for repai r. 4. Remove the fluid inlet fittin g (20).
Repair 3A042 7B 11 F IG . 2. R egu lat or As sembl y 1 Torque oppositely and alternately t o 25 in-lb (2.8 N•m). Apply thread sealant. Apply pipe sealant.
Parts 12 3A042 7B Parts 24C375 1:1 Ratio Fluid Regulator, Se ries A 24E471 1:2 Ratio Fluid Regulator, Series A 24E472 1:3 Ratio Fluid Regulator, Series A * Parts in clude d in Re build Kit 24E5 04 (pu rchase sep- arat ely ).
Parts 3A042 7B 13 TI15290 a 20 1 7 ◆ 6 ◆ 5* ◆ 8 11* 10 17 4 3† 29* 14† 13 2 15* † 27 26 *9a (ptfe ) *9b (nylo n/buna-N) TI1528 9a 19 19a 19b See pa rts break down abo ve.
Dime nsions 14 3A042 7B Dimensions TI 15291 a TI15288 a Bracket Mounting Hole Diagram 1.08 in . (27.43 mm) 0.194 in. ( 5 mm) diameter hole s 1.81 in. (46 mm) diameter ) 2.
Technica l Data 3A042 7B 15 Technical Data Maximum air inlet p ressure . . . . . . . . . . . . . . . . . . . . . . 100 p si (0.7 MPa, 7 bar ) Maximum fluid in let pr essure . . . . . . . . . . . . . . . . . . . . . 300 psi (2.1 MPa, 21 ba r) Maximum regulate d fluid pres sure (hi gh pres sure por t) All Mo dels .
Performance Data 16 3A042 7B Perfor mance Data Use the follo wing chart s to choose the best ratio for yo ur applica tion, d ependi ng on th e desi red fluid p ressur e range an d pressur e losse s due to fl ow rate, fl uid visco s- ity, and f luid lin e size.
Performance Da ta 3A042 7B 17 0 20 40 60 80 100 (0.7, 7.0) (0.56, 5.6) (0. 42, 4 .2) (0.28, 2 .8) (0. 14, 1 .4) 300 400 500 600 700 800 1000 1100 900 0 Pilot Air Pr essure Fluid Flow Rate, cc/m in psi.
All written and visual data contained in this document reflects the latest product information available at the time of publi ca tion. Graco reserves the right to make changes at any t ime without notice. This manual contains E nglish. MM 3A0427 Graco Hea dquarters: Minne apolis Internati onal Offices : Belgium , China, Ja pan, Korea GRACO INC.
An important point after buying a device Graco 3A0427B (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Graco 3A0427B yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Graco 3A0427B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco 3A0427B you will learn all the available features of the product, as well as information on its operation. The information that you get Graco 3A0427B will certainly help you make a decision on the purchase.
If you already are a holder of Graco 3A0427B, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Graco 3A0427B.
However, one of the most important roles played by the user manual is to help in solving problems with Graco 3A0427B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco 3A0427B along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
