RUser Guide
Elcometer RCV4000 & RCV4000+
Remote Control Valves

SectionPage

1

Product Overview

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2

Disconnecting & Reconnecting the RCV

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3

Disassembling & Re-Assembling the RCV

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4

Disassembling & Re-Assembling the RCV Exhaust Manifold

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5

Drawings & Parts List

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Before carrying out any replacement or maintenance of any part of theAbrasive Blast Machine (ABM) or any item within the Abrasive Blast
System, please read and understand the User Guide for the Abrasive
Blast Machine.
Failure to follow operating instructions could result in death, serious
injury or damage to equipment.

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PRODUCT OVERVIEWThe Elcometer RCV4000 & RCV4000+ Remote Control Valves aredesigned to be used in a dry abrasive blast machine and consist of:
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RCV Exhaust Manifold:This allows air to exhaust fromthe abrasive blast machine
through the silencer.
Remote Control Valve:This, when used in conjunction
with a deadman's handle,pressurises and depressurises the abrasive blastmachine. The red safetypetcock valve on the remotecontrol valve can be used tode-pressurise the abrasiveblast machine in anemergency (isolating thedeadman's handle).
RCV Air Manifold: Provides
the operator with a ½” outlet
port to fit a pressure relief
valve and five additional ¼”
outlet ports for providing air toancillary equipment such as
breathe air filters and air
power tools. A pressuregauge can also be attached toprovide the operator with thecompressed air pressure
value. One additional ¼” outlet
port is fitted with a moisturedrain ball valve.

ExhaustManifold

Seal Checkpoint
Holes
Yellow
Control Line(In)Safety Petcock Valve(open position)

Remote ControlValveAir ManifoldGreenControl Line(Out)Drain Valvewww.elcometer.com/blastingR1
PRODUCT OVERVIEW (continued)
Compressed air is fed though the remote control valve and down thegreen control hose to the deadman's handle. When the deadman's
handle is closed, the air returns to the remote control valve via theyellow control hose which pushes up the exhaust diaphragm (which
prevents air from venting through the silencer) and pushes down the
air inlet piston, allowing the compressed air to flow into the abrasive
blast machine, pressurising the abrasive blast machine and allowing
the blast process begin.
When the deadman's handle is released, the exhaust diaphragm drops
allowing the abrasive blast machine to depressurise by venting
through the silencer via the exhaust manifold.
There are two seal checkpoint holes located on the front of theRCV4000 & RCV4000+. If air is blowing out of these holes, it is likelythat the seals within the RCV4000 / RCV4000+ and exhaust manifold
require replacing.
2DISCONNECTING & RECONNECTING THE RCV
Before carrying out any replacement or maintenance of any
part of the Abrasive Blast Machine (ABM) or any item within
the Abrasive Blast System, please read and understandthe User Guide for the Abrasive Blast Machine.
Depressurise the ABM, bleed all the air supply lines to theABM and disconnect the ABM from the compressor.
Failure to do so could cause serious injury or death.

Please refer to the Elcometer ABM Drawings in Section 10 of thelatest issue of the Elcometer Abrasive Blast Machine User Guide.
1To disconnect the remote control valve from the abrasive blastmachine, first disconnect the yellow (top) and green (bottom)
remote control hose from the remote control valve and any otherair supplies from the remote control valve & air manifold.
2Undo the union joint located near the exhaust port and the union
joint – connected to the RCV exit port located on the side of theremote control valve and remove the remote control valve,
complete with accessories, from the abrasive blast machine.
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2
3
4

DISCONNECTING & RECONNECTING THE RCV (continued)
Remove the moisture separator, undo the union joint and set
down on a clean surface.
Remove the silencer by undoing the union elbow joint.

3DISASSEMBLING & RE-ASSEMBLING THE RCVPlease refer to the drawings in Section 5 on page en-5.
1To remove the exhaust manifold from the RCV, remove all fourbox screws using a special cut down 6mm allen box key (partnumber MT30072), remove and / or replace the gasket and set
both down on a clean surface.
Note: There are 3 seals / o-rings in the RCV that will need to be replacedor greased from time to time; the piston lip seal (item 13) located on thepiston, and two o-rings (item 18) located on the inlet valve shaft (item 19).

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To remove the piston (item 12), fit the allen box key into the box
screw positioned in the centre of the piston and, whilst looking
through the RCV's exit port, slowly rotate the piston until you seea hole in the inlet valve shaft (item 19). Take a rod (or crossheaded screwdriver) and pass it through the exit port and into thehole on the piston shaft. You can now undo the box screw locatedat the top of the piston head. Please note that the piston box
screw is held in place with thread lock to prevent it from loosening
during operation and will be tight. Taking note of the orientation of
the piston (hole recess on top), carefully prise out the piston using
a flat head screwdriver taking care not to damage the piston lip
seal (item 13). Replace and / or grease the piston lip seal asrequired.
To remove the inlet valve shaft, first remove the RCV Air Manifold(or base plate on the RCV4000) by removing all 4 box screws(item 4) using the 6mm allen box key. Remove and / or replace
the gasket and set both down on a clean surface.
The inlet valve shaft can now be pushed down from the top (oncethe rod or cross headed screwdriver has been removed). Replaceand / or grease the two o-rings (item 18).
Reassemble using Steps 4 to 1 above, applying grease to thefollowing items: Item 18: Valve Shaft o-rings, Item 19: Valve Shaft
and Item 12: Piston.

www.elcometer.com/blastingR4DISASSEMBLING & RE-ASSEMBLING THE RCVEXHAUST MANIFOLD
There is one piston lip seal (item 13) in the RCV Exhaust Manifoldthat will need to be replaced or greased from time to time.

There is also a Rubber Valve Seat Diaphragm (item 6) which will alsoneed inspecting from time to time. This Diaphragm is designed toprotect the pistons from damage caused by any abrasive media within
the exhaust during depressurisation of the abrasive blast machine.
Please refer to the drawings in Section 5 on page en-5.
1
Disconnect the RCV4000 or RCV4000+ from the abrasive blastmachine as described in Section 2.
2
To remove the exhaust manifold from the RCV, remove all fourbox screws using a special cut down 6mm allen box key (partnumber MT30072), remove and / or replace the gasket and set it,
and the RCV, down on a clean surface.
3
With the Exhaust Manifold resting on a clean desk, unscrew andremove the manifold adaptor (item 1) and lift off the manifold
cover (item 2). Replace the exhaust manifold sealing ring (item 3)
as required.
4
Using the allen box key, remove the 4 box screws (item 4) and lift
off the top cover (item 5).
5
Lift off and inspect the Rubber Valve Seat Diaphragm (item 6),and replace if required.
6
Insert the pegs of the Exhaust Manifold Piston Tool (part numberMT30072) into the two holes on the base of the manifold cylinder(item 8) and then remove the box screw (item 4) located at thetop of the piston head. Taking note of the orientation of the piston(hole recess on top), carefully prise out the piston using a flathead screwdriver taking care not to damage the piston lip seal
(item 13). Replace and / or grease the piston lip seal as required.
7
Reassemble using Steps 3 to 6 above, applying grease to Item
13: Piston Lip Seal, Item 3: Exhaust Manifold Sealing Ring, Item
8: Manifold Cylinder and Item 12: Piston
Note: When repositioning the exhaust manifold cover, rotate the cover so that theexhaust exit port is orientated to fit the silencer in the correct place. Leave themanifold adaptor (item 1) finger tight to allow fine adjustment when re-attaching
the RCV assembly to the abrasive blast machine and, once the silencer has
been positioned correctly, fully tighten the manifold adaptor (item 1).

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R5DRAWINGS & PARTS LIST

Part NumberDescription

RCV4000-125B

1¼" RCV4000 Pneumatic Remote Control Valve

RCV4000P-75B¾" RCV4000+ Pneumatic Remote Control Valve forElcometer 1020 Abrasive Blast Machines
RCV4000P-150B 1½" RCV4000+ Pneumatic Remote Control Valve for Elcometer
Abrasive Blast Machines (excluding the Elcometer 1020)
RCV4000P-125B 1¼" RCV4000+ Pneumatic Remote Control Valve

RCV4000

1RCV4000+

992310104441112512141315

161316614
714

171818
19

41719
20

101016

823
21

1620

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2216204

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5DRAWINGS & PARTS LIST (continued)

ELCOMETER RCV4000 & RCV4000+ SPARE PARTS
Item

Part Number

Description

1MT30022¾" to 1" 60º Cone Male / Male Adaptor

2MT30023

Bleed-Oﬀ Manifold

5MT30024

Top Cover

7MT30025

Bleed-Oﬀ Valve

8MT30026

Bleed-Oﬀ Cylinder Housing

9MT28591

Exhaust Manifold Assembly

11MT30086¼" 60º Cone Male / Male Adaptor

12MT30081

Piston14

MT28596¼" Square Head Plug (x2)15

MT28594

1½" to 1¼” Reducing Bush

16

MT30085¼" Male Adaptor

17MT29586

Petcock Valve Assembly (Red Handle)

19

MT30083

Inlet Valve20

MT28619¼" Ball Valve (Black Handle)

21MT30084

Base Plate

22MT30087

Air Manifold

23MT30099½" Square Head Plug

ELCOMETER RCV4000 & RCV4000+ SERVICE KITS
ItemPart Number

Description

MT30055

Elcometer RCV4000 / RCV4000+ Service Kit 1(contains the items listed below)

3-

O-Ring 3mm Cord x 89.6 ID

6-Rubber Valve Seat

10-

Gasket (x2)

13-

Piston Lip Seal (x2)18-

O-Ring 3.53mm Cord x 23.29 ID (x3)

MT30056

Elcometer RCV4000 / RCV4000+ Service Kit 2
contains the items listed below)-M8 x 25 Stainless Steel Hex Socket Cap Screw (x8)MT30072

Elcometer RCV4000 / RCV4000+ Service Kit 3(contains the items listed below)--

RCV Service Tool--

6mm Allen KeyMT28605

Elcometer RCV4000 / RCV4000+ Service Kit 4(contains the items listed below)

14-¼" Square Head Plug (x3)23

MT30099½" Square Head Plug4

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RFor the avoidance of doubt, please refer to the original English language version of this user guide. The mostrecent version is available to download via the blasting section of the Elcometer website,www.elcometer.com/blasting.
Please ensure that all product packaging is disposed of in an environmentally sensitive manner. Consult yourlocal Environmental Authority for further guidance.
is a registered trademark of Elcometer Limited, Edge Lane, Manchester, M43 6BU.
United Kingdom
All other trademarks acknowledged.
© Elcometer Limited 2018-2020. All rights reserved. No part of this document may be reproduced, transmitted,transcribed, stored (in a retrieval system or otherwise) or translated into any language, in any form or by anymeans (electronic, mechanical, magnetic, optical, manual or otherwise) without the prior written permission ofElcometer Limited.
RTMA-0733 Issue 02 - Text with cover 29466