Richter Lined Mag-DriveASME/ANSI PumpsCorrosive, solid-laden and high-purity fluids

RM

A, R

MA

-B

Temperatures to 300°F (150°C)

Virgin FDA-approved PFA/PTFEwithout fillers and pure siliconcarbide bearing system

Dry-run SAFEGLIDE® PLUS

Thrust-optimized for all operating conditions

Engineered in Germany,

built and serviced in USA

RMA, RMA-B

2

Richter lined mag-driveASME/ANSI process pump

Fields of ApplicationsCorrosive, environmentally critical and high-purity fluids in the chemical, pharmaceutical, petrochemical, semiconductor, pulp, metal, food processing and waste disposal/recycling industries.The Richter RMA series was developed• for use with media where stainless steel and

conventional plastics do not have sufficient corrosion resistance

• as an alternative to- pumps made of expensive long-lead time metals

(Alloy C, tantalum etc.)- plastic-lined mechanical seal pumps- full plastic pumps- metal pumps with double mechanical seals and

liquid sealing or quench systems- and to stainless steel mag-drive pumps.

DesignSealless, fluoropolymer-lined mag-drive centrifugalpump.Dimensions and delivery data to ASME/ANSI B73.3. Close-coupled and frame-mounted designs. No dynamic seal. Eddy-current-free.

Type and material codes• Frame-mounted RMA/...• Close-coupled RMA-B/...• Lining perfluoroalkoxy (PFA) .../F

Operating range

60 Hz operation 50 Hz operation0.5-750 US gpm* 0.5-660 US gpm* (0.1-180 m3/h)* (0.1-150 m3/h)*up to 500 ft (155 m) LC* up to 360 ft (110 m) LC*

• Casing ductile iron ASTM A395/PFA-lined:-20 °F (-29 °C) to +300°F (150°C);max. 275 psi (19 bar)

• Capability of handling solids depending on shape,hardness and size of solids, consult factory

* For higher temperatures and more applicationspecific options please see Richter ASME/ANSIheavy duty mag-drive pump MNKA.For an even wider application range please seeRichter´s ISO pump range MNK with flows to 2,650 US gpm (600 m3/h) and temperatures to 400 °F (200 °C).

Features and benefits

The handling of highly corrosive, high-purity or environmentally critical fluids calls for truly reliable and safe equipment withoutcompromises on quality, material and efficiency.

Richter fluoropolymer PFA lined process pumps have proven to be world-class in demanding chemical processing applications for decades.

Richter’s RMA mag-drive pump series excel through

� Virgin PFA lining without carbon or carbon fiber fillers –Perfect lining quality and guaranteed even lining thickness• Highest chemical resistance, well above ETFE (e.g. Tefzel®)• Temperatures to 300 °F (150 °C) • Full FDA conformity• Neutral to pure fluids in pharmaceutical, fine chemical and

semiconductor applications• Superb permeation resistance • Wall thickness from at least 0.12 to 0.2“ (3 to 5 mm).• Unmatched quality control opportunities • Vacuum-proof anchored lining:

- Casing and impeller magnet assembly are lined with virgin PFA,and virgin PTFE is used for the wetted part of the doubleCFRP/PTFE containment shell.

- Richter exclusively applies the “TM transfer molding process”(not the so-called roto-molding).Indexing drillings on casting outside guarantee uniform liningthickness according to best practice, very important for highpermeation resistance and wear allowance.

� SAFEGLIDE® PLUS: Resilient against dry-run for 30 minutesand more• SAFEGLIDE® PLUS silicon carbide (SSiC) sleeve bearings

provide true dry-run capability, they withstood dry-run trials for 30-60 minutes. The proprietary surface impregnation is extremelywear and tear and chemical resistant. Supplied with more than20,000 Richter pumps into the toughest applications.

� Capability of handling liquids containing solids• Casing and rotor solids restriction rings prevent critical solid

particles from entering the rear containment shell chamber.The SSiC suction-sided spider will resist all possible wear and tear.

� Axially thrust-optimized rotating unit:Smooth running even under critical load conditions• Well-balanced rotating unit supported both in the containment

shell and in the suction-sided SSiC spider. Non-cantilevered design, thus no shaft deflection, working components are under less stress.

• Wide space between SSiC bearing sleeves provides reliable distribution of radial forces.

• Engineered closed impeller design. Thrust-balancing circulationholes and defined internal circulation flow path ensure minimumthrust loads.

3

� Minimum life cycle cost andEase of maintenance• High efficiency design, no energy-wasting eddy currents • Universal corrosion resistance provides high flexibility• Virtually maintenance-free• Double “back pull-out” design for easy maintenance of

motor and roller bearings without releasing system pressure• Few components only: a service-orientated pump.

� Robust design for dimensional stability even at high temperatures• Full-surface ductile cast iron ASTM A395 absorbs

pipework forces and eliminates need for expansion joints• Impeller magnet assembly with large metal core• Robust highest grade SSiC silicon carbide components

� Non-metallic double containment shell system• Wetted: thick-walled virgin PTFE• Pressure-bearing: carbon-fiber, with high safety reserves• No eddy currents: no heating of fluid, no energy waste• Integral flow breakers prevent abrasive circulation in the

containment shell

High-performance NdFeB (neodymium iron boron)and SmCo (samarium cobalt) permanent magnets • Consistent energy density even at high temperatures• Patented magnet attachment by stainless steel caging

underneath PFA lining

High-quality external corrosion protection• Thick 2-component outside epoxy coating of the pump• SS screws, other grades available.

Close-coupled pump RMA-BAll sizes are available both in compact close-coupled design for a flange motor and in frame-mounted design.

10

9

8

7

6

5

4

3

2

1

6

� Drive magnet assembly with bump ring• In event of ball bearing failure the containment shell

will reliably be protected from contact by a possibly tumbling drive magnet assembly

4

RMA, RMA-B

SAFEGLIDE® PLUS dry-run optimizedSSiC silicon carbide bearing systemSSiC silicon carbide and SAFEGLIDE®

PLUS are extremely corrosion and abrasion resistant.The SSiC radial sleeve bearings are positively locked in the impeller magnetassembly and rotate on the SSiC shaft.The SSiC impeller thrust ring absorbspossible axial thrust.SAFEGLIDE® PLUS is a most valuableoption and offers unique dry-run proper-ties. It protects the pump against dry-run damages for a reasonable period shouldlubricating fluid be missing – even whenbone-dry!Carbon graphite sleeve bearings arenot being offered due to risk of prema-ture wear in case of solids in the fluid.

Quality and reliability count when difficult fluids are to be handled

Non-metallic double containment shell The integral flow breakers prevent thefluid from unwanted circulation. This is ofadvantage especially with fluids contai-ning abrasive solids.

Virgin PFA and PTFE fluoropolymers, no fillersAny filler – be it e.g. graphite or glasspowder or carbon fiber – has a negativeimpact on the overall chemical resistanceof fluoropolymers against corrosivechemicals like on the inertness versushigh-purity and valuable fluids. Fillers are usually compounded in fordimensional stability of the liner or compo-nent at higher temperatures or pressures.

for high efficiency and low NPSHr.Thick-walled PFA lining, entirely seamlessand without welding points.

Solid restrictor Fluoropolymer lined pumps are capable ofhandling solids-laden fluids to a certainshare of solids. The allowable share ofsolids is very much depending on particlesize, shape and hardness. Richter has a long and rich experiencewith this, a case by case validation isstrongly recommended.

10

20

30

50

70

85

tem

pera

ture

ris

e (°

C)

tem

pera

ture

ris

e (°

F)

Dry-run of SSiC silicon carbide bearings in lined magnetic drive pumps, 2900 rpm: Temperature rise

interrupted flow, SSiC with SAFEGLIDE® PLUS

bone-dry, SSiC with SAFEGLIDE® PLUS

bone-dry, SSiC without SAFEGLIDE® PLUS

The RMA solids restriction rings act asbarrier to solid constituents in the fluidtowards the containment shell chamber.The inner solids restriction ring is standardintegral molded into the magnet rotor.The outer solids restriction ring is standard made of PTFE and replaceable.Other solids restriction ring materials onrequest.

SSiC Shaft and sleeve bearings

Impeller magnet assembly (shown detached)

5 10t (min)

outer solidsrestriction ring

inner solidsrestriction ring

Integral flow breakers

Instead a metal core is the more reliablesolution and provides more flexibility, asvirgin lined pumps can operate as multi-purpose pumps with higher temperatureranges.Normally fillers also degrade the per-meation resistance substancially.

2-piece impeller magnet assemblyLargely dimensioned metal-backed catches safely transmit the torque frommagnet rotor to impeller.Exactly die-molded geometries ensure asimple and durable assembly of magnetrotor and impeller by means of a jawclutch type design, fixed by retaining ring,with easy dismantling.No O-rings, no threads, no key-ways needed.2-piece design also for economical reasons: magnet coupling torque can beadjusted to changing demands byexchange of magnet rotor and reuse ofimpeller. Impeller itself can individually bereplaced in case of wear and tear.Flow-optimized impeller channel design

5

Parts and materials

213

510/3

421/1

361

953/1

321/2

330

566/2

903/1

545/2932/7504545/1401502/1502/2415/1

122

222

100 638/1321/1672/1421/2159344158

858

859

230

566

510/2

338

523/1

Temperature monitoring

Casing drain connection

Containment shell leak sensor in lantern chamber

Additional options

216346

Illustration shows close-coupled pump RMA-B

Illustration shows frame-mounted pump RMA with oil bath lubrication

Parts and materials

Item No. Index of parts Material

100 Casing (housing) Ductile iron ASTM A395, PFA lined

122 Blind cover Steel

158 Containment shell (can) insert PTFE

159 Containment shell (can) Carbon-fiber-reinforced resin (CFRP)

213 Drive shaft Steel

216 Hollow drive shaft Steel

222 Shaft SSiC pure silicon carbide, option. with SAFEGLIDE® PLUS

230 Impeller PFA with SS core

321/x Radial ball bearing Oil bath, long-life grease optional

330 Bearing pedestal Ductile iron

338 Shaft spider SSiC pure silicon carbide

344 Lantern Ductile iron ASTM A395

346 Adapter Ductile iron ASTM A395

361 Rear bearing cover Steel

401 Casing (housing) gasket PTFE

415/1 Centering gasket PTFE

421/x Rotary shaft seal

502/1 Outer solids restriction ring PTFE, optional

502/2 Inner solids restriction ring PFA, integral to impeller # 230 (optional replaceable PTFE)

504 Distance ring (spacer ring) PTFE

510/2 Front thrust ring SSiC pure silicon carbide

510/3 Rear thrust ring SSiC pure silicon carbide

523/1 Shaft sleeve PTFE

545/x Bearing sleeve SSiC pure silicon carbide, option. with SAFEGLIDE® PLUS

566/x Anti-torsion insert PTFE

638/1 Constant level oiler Only with oil bath lubrication

672/1 Venting/filling plug Plastic

858 Drive magnet assembly Ductile iron, NdFeB permanent magnets

859 Inner magnet assembly Steel/PFA, SmCo permanent magnets

903/1 Screw plug

932/7 Circlip (retaining ring) PTFE

6

Performance curves

RMA, RMA-B

Dimensions and weights (frame-mounted and close-coupled pumps with NEMA motors)

Richter magnetic drive pumps RMA and RMA-B are available for a performance range of up to

– 750 US gpm (180 m3/h) and up to500 ft (155 m) LC at 3500 rpm

– 660 US gpm (150 m3/h) and up to360 ft (110 m) LC at 2900 rpm

0 10 20 30 40 50 60 70 80(m) (m3/h)(ft)

(US gpm)100 150 200 250 300 35050

125

100

75

50

25

0

30

40

20

10

0

0

Capacity – 1750 rpm (60 Hz)

Tota

l hea

d –

175

0 rp

m (6

0 H

z)

3x1.5x8“

3x2x10“

1.5x1x8“

1.5x1x6“

3x1.5x6“

3x2x6“

3x2x8“

4x3x8“

F

ES

R

M2

A2

A1

K1

DND

DN

S

Y N

V

CP

E1

H1

E2

H2

K2

S

B

M1

T

DX

OU

0

0

20 40 60 80 100 120 140 160

100 200 300 400 500 600 700

Capacity – 3500 rpm (60 Hz)

(m3/h)

(US gpm)

(m)(ft)

100

200

300

400

500160

140

120

100

80

60

40

20

00

Tota

l hea

d –

350

0 rp

m (6

0 H

z)

3x2x10“

3x1.5x6“

1.5x1x6“

1.5x1x8“

3x1.5x8“

4x3x8“

3x3x8“

3x2x6“

Flow rates and delivery heads outside thisperformance range can be covered by theRichter magnetic drive pump seriesMNK/MNKA up to 2650 US gpm (600 m3/h).In view of its design, the good hydraulics,the containment shell free of eddy currents and the overall good value formoney, the RMA/RMA-B series is one ofthe most economic pumps of its kind.

8 well graduated pump sizes from1.5x1x6“ to 3x2x10“ allow for a tailor-made pump selection.

Group Pump Size DNS DND Y T U N O D X CP V R S ES

1.5x1x6“ 1.5 (38.1) 1 (25.4)

13x1.5x6“ 3 (76.2) 1.5 (38.1)

4.02 (102) 11.02 (280) 0.87 (22.3) 13.5 (343) 11.75 (298) 5.25 (133) 6.5 (165) 17.52 (445) 2 (51) 0.96 (24.3) 0.19 (4.8) 1.75 (44.5)3x2x6“ 3 (76.2) 2 (50.8)

1.5x1x8“ 1.5 (38.1) 1 (25.4) 11.4 (290)

3x1.5x8“ 3 (76.2) 1.5 (38.1) 16.7 (425) 8.5 (216)

23x2x8“ 3 (76.2) 2 (50.8)

4.02 (102) 13 (330) 1.13 (28.6) 19.5 (495)17.75 (450)

8.25 (210)9.5 (242)

23.5 (597) 3.23 (82) 1.24 (31.4) 0.25 (6.35) 2.25 (57.2)4x3x8“ 4 (101.6) 3 (76.2) 19.3 (490) 11.02 (280)

3x2x10“ 3 (76.2) 2 (50.8) 15 (380) 17.75 (450) 9.5 (242)

Pump dimensions inch (mm)

Frame-mounted design

7

DND

DN

S

Y N1 N2

XD

O

T

M1

A1

K1

H1

B

E1 E

2

**H

2

**K

2

**M2

**F

**A2

“X“

“X“1:10

AJ

BD

AK

BF 45°

Adapter dimensions inch (mm)

** from motor sizes 280 no support bracket on the adapter

Group Pump Size B M1 A1 M2 A2 K1 E1 E2 K2 H1 H2 F

1.5x1x6“ 3.07 (78) 1.42 (36)

13x1.5x6“

1.97 (50) 3.27 (83) 1.61 (41) 1.69 (43) 0.55 (14) 7.97 (202.4) 6 (152.4) 0 3.94 (100) 0.63 (16) 0.63 (16) 7.25 (184)3x2x6“

1.5x1x8“ 3.07 (78) 1.42 (36)

3x1.5x8“3.27 (83) 1.61 (41)

23x2x8“

1.97 (50) 2.13 (54) 0.98 (25) 11.7 (298) 9.76 (248) 7.25 (184) 8.66 (220) 0.63 (16) 0.63 (16) 12.5 (318)4x3x8“ 3.54 (90) 1.77 (45)

3x2x10“ 3.27 (83) 1.61 (41)

Pump feet dimensions inch (mm)

Group Pump Size DNS DND D N1 O T X Y

1.5x1x6“ 1.5 1 (38.1) (25.4)

3x1.5x6“ 1,5 11.02(38.1) (280)

13x2x6“

32

5.25 6.02 11.75 6.5 4.02(76.2)

(50.8)(133) (152.9) (298) (165) (102)

1.5x1x8“ 1.5 1 11.4(38.1) (25.4) (290)

3x1.5x8“ 1.5 16.7 8.5(38.1) (425) (216)

3x2x8“3

2 17.75 13 9.5(76.2)(50.8) (450) (330) (242)

24x3x8“ 4 3

8.25 6.6919.3 11.02

4.02

(101.6) (76.2)(210) (169.9)

(490) (280)(102)

3x2x10“ 3 2 17.75 15 9.5(76.2) (50.8) (450) (380) (242)

Pump dimensions inch (mm)

Group Pump Size B M1 A1 M2 A2 K1 E1 E2 K2 H1 H2 F

1.5x1x6“ 3.07 (78) 1.42 (36)

13x1.5x6“

1.97 (50) 3.27 (83) 1.61 (41) 1.69 (43) 0.55 (14) 7.97 (202.4) 6 (152.4) 0 3.94 (100) 0.63 (16) 0.63 (16) 7.24 (184)3x2x6“

1.5x1x8“ 3.07 (78) 1.42 (36)

3x1.5x8“3.27 (83) 1.61 (41)

23x2x8“

1.97 (50) 2.2 (56) 0.98 (25) 11.7 (298) 9.76 (248) 7.24 (184) 8.66 (220) 0.63 (16) 0.63 (16) 12.5 (318)4x3x8“ 3.54 (90) 1.77 (45)

3x2x10“ 3.27 (83) 1.61 (41)

Pump feet dimensions inch (mm)

Close-coupled design

Group NEMA motor N2 BD AK AJ BF

140 TC 4.52 (114.9) 6.7 (170) 4.5 (114.3) 5.88 (149.23) 7/16 (11.1)

180 TC5.71 (145) 9.25 (235)

210 TC 8.5 (215.9) 7.25 (184.2)9/16 (14.3)1

250 TC 6.34 (161) 10 (255)

280 TSC 5.71 (145) 11.22 (285) 10.5 (266.7) 9 (228.6)

320 TSC 6.1 (155) 14 (355) 12.5 (317.5) 11 (279.4) 11/16 (17.5)

180 TC

210 TC7.26 (184.5)

9.25 (235) 8.5 (215.9) 7.25 (184.2)9/16 (14.3)

250 TC2

280 TSC 11.22 (285) 10.5 (266.7) 9 (228.6)

320 TSC

360 TSC 7.5 (190.5) 14 (355) 12.5 (317.5) 11 (279.4) 11/16 (17.5)

400 TSC

RMA, RMA-B

Pub

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No.

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5.09

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Richter Inc.A Unit of IDEX Corporation406 State StreetCedar Falls, 50613 IA, USATel. +1(319) 268-8038, Fax +1(803) 216-7702

Headquarter:

Richter Chemie-Technik GmbHOtto-Schott-Str. 2, D-47906 Kempen, GermanyTel. +49 (0) 2152/146-0, Fax +49 (0) 2152/146-190www.richter-ct.com, richter-info@idexcorp.com

Presented by:

8

Other Richterprocess pumpsRichter magnetic drive and mechanicalseal pumps are – just like Richter chemi-cal shut-off and control valves – at homein a host of different chemical and relatedprocesses.This pump range also includes more specialised designs. The plant operatorcan thus choose from Richter pumpseven for very difficult applications.

Mechanically sealed pumps• to ASME B73.1 up to 500 US gpm

(115 m3/h) and 350 ft (105 m) LC at3500 rpm

• to EN 22858/ISO 2858 up to 1300 US gpm (300 m3/h) and 300 ft (90 m) LC at 1450/2900 rpm.

Self-priming pumpsfor emptying containers and basins fromthe top. Suction height up to 20 ft (6 m)WC, suction back pressure up to 59 ft (18 m) WC. Up to 145 US gpm (33 m3/h)and 130 ft (40 m) LC at 2900 and 180 ft(55 m) at 3500 rpm.

Mag-drive pumps• to ASME B73.3 up to 750 US gpm

(170 m3/h) and 500 ft (155 m) LC at3500 rpm.

• to EN 22858/ISO 2858 up to 2650 US gpm (600 m3/h) and 300 ft (90 m) LC at 1450/2900 rpm

Vortex pumpsfor solids contents, lumpy particles andgas contents. Up to 880 US gpm(200 m3/h) and 280 ft (85 m) LC at 2900 rpm and 395 ft (120 m) at 3500 rpm.

Peripheral pumps for lower flow rates at high heads.0.4-22 US gpm (0.1-5 m3/h) and up to 330 ft (100 m) LC at 2900 and 3500 rpm.