PSG, TSG, VSG, SGS, SR

Richter 2-/3-/4-waySight Glasses

Corrosion-resistantPFA-, PTFE-, FEP-lined

2

PSG

100

114

528

106

ø a

L A

DN

Dk

d4

nxd2

Fields ofapplication

Monitoring of flow,filling level, condition,colour and gas contentsof media in pipes andvessels and near pumps.

The Richtersight glasses aredesigned• for media where stainless

steel is not corrosion-resistant

• as an alternative to valvesmade of expensive specialmetals (Hastelloy, Monel,tantalum, etc.)

• for pure and slightly solids-laden media

• for metal-reactive media,e.g. H2O2

• for pure media wheregood cleaning possibilitiesand anti-adhesive surfacesare important.

Operating rangeDepending on version andmaterial• from – 60 to +200˚C,

(–75 to + 400˚F), series SGS max. 150˚C (300˚F)• from vacuum to 16 bar

(235 psi)SGS max. 6 bar / 88 psi

• installation position horizontal to vertical

Product features• borosilicate glass to

DIN 7080• sight glass panes and

cover flanges to DIN3237-2, bolted individu-ally to the body

• large free field of vision• series SGS: cylindrical glass

with all-round vision

• DN 15-100 (1/2” to 4”) withdrip lip: also indicates verylow flow volumes

• rugged design withmetallic armouring

• thick wall lining with highpermeation resistance

• face-to-face lengthDIN EN 558-1 basic series 1(ISO 5752 basic series 1)

• flange connectingdimensions:DIN EN 1092-2, design B(ISO 7005-2, type B),drilled to ANSI Cl. 150 onrequest

• various options, see page 5

DN 25 – 150 (1” – 6”): lining PFA, FEP (DN 150 / 6”: only PFA)DN 200 (8”): lining PTFEDN 250 + 300 (10” + 12”): on requestAntistatic lining on request

2-way-sight glass, series PSG(see illustration on cover page)

Optionaldouble pane,see page 4

100

114

106

b D

k

d4

DN

L

ø a

100

114

106

Dkd4

DNL

L

ø a

3

TSG, VSG

nxd2

nxd2

DN 25, 50 and 80 (1”, 2”, 3”):Lining PFA, FEPAntistatic lining on request

3-way sight glassSeries TSG

Flat gasket (528) not illustrated

DN 50 (2”):Lining PFAAntistatic lining on request

4-way sight glassSeries VSG

Flat gasket (528) not illustrated

4

SGS

102

114

DN

d4

kD

L

nxd2

2-way cylindrical sight glassSeries SGS

DN 15-100 (1/2” – 4”):Lining FEPMax. 6 bar / 88 psi, max. 150 ˚C / 300˚F

Pressure-bearingbody made of ductilecast ironEN-JS 1049 („0.7043”) /ASTM A 395 absorbs systemand pipe forces

External corrosionprotectionEpoxy coating, nutsand bolts made ofstainless steel

Designationto DIN EN 19,ANSI B16.34

Suitable for almost allmedia includingcorrosive, pure, hot andhighly permeating media• lining made of unfilled

virgin PFA/PTFE or FEP• thick-walled, high

permeation resistance• vacuum-tight• conductive lining optional• universal application, for

a wide range of media, also in multi-purpose and pilot plants

Teflon®,Kalrez® = Trademark of DuPontDyneon® = Trademark of DyneonRichter = Trademark of ITT RichterITT Industries = Trademark of ITT Industries

Otherproduct features

Pressure vessel guidelineThe sight glasses are suitablefor vapours, gases andliquids of group 1 of theGerman Pressure Vessel Code(„Druckgeräte-Richtlinie“)

Optional features• double sight glass

panes• lighting unit, e.g. for

opaque media or poor lightconditions

• fluoroplastic lining onwetted side of the panesfor increased chemicalresistance

• series SGS: transparent PUcoatings on the cylindricalglass outside as protectionagainst impacts,scratches and splinters(not shatter protection).T max. 140˚C/285˚F

5

-60 12040 150-10 200

-75 250105 300+15 400

100503020

10

532

1

200

15141312

10

7654

16

11

98

1,50,50,40,3

0,15

0,070,040,03

0,02

3

220205190175

145

100857560

235

160

130115

175

321

453015

1000500300

80

47

15

DN1520253240506580100150200

L130150160180200230290310350480600

D95

105115140150165185200

2254)

285340

k (ISO)657585

100110125145160180240295

d4

4558687888

102 1203)

138158212268

nxd2 (ISO) 4 x 14 4 x 14 4 x 14

4 x 18 4 x 18 4 x 18 4 x 18 4 x 18 4 x 18 8 x 2212 x 23

a1)

482)

658080

100125137

b

80

115

155

A

85

110120

ø 175ø 190ø 210ø 250

DN1520253240506580100150200

PSG

PFA, FEP

PFA, FEPPFA, FEPPFA, FEPPFA, FEPPFA, FEP

PFAPTFE

TSG

PFA, FEP

PFA, FEP

PFA, FEP

VSG

PFA

SGSFEPFEPFEPFEPFEPFEPFEPFEPFEP

DN1520253240506580100150200

PSG

6

91416223673

102

TSG

7

16

39

VSG

18

SGS33458

10132030

nxd2 (ANSI)5)

4 x 1/2”6)

4 x 1/2”6)

4 x 167)

4 x 164 x 164 x 194 x 196)

4 x 197)

8 x 198 x 22

k (ANSI)5)

60,5 6)

706)

79,57)

89 98,5120,5139,5152,57)

190,5241,5

inch1/2”3/4”1”11/4”11/2”2”21/2”3”4”6”8”

Dimensions, materials, weights, pressure / temperature diagram

Type codes of sight glasses• 2-way version PSG/ . . .• 3-way version TSG/ . . .• 4-way version VSG/ . . .• 2-way cylindrical sight glass SGS/ . . .

Lining:• Perfluoroalkoxy (PFA) and polytetrafluoroethylene (PTFE) . . . / F• Fluorinated ethylene propylene (FEP) . . . / F

The table contains the installation and connecting dimensions for the ISO/DIN and ANSI-drilled versions.DN 250 and 300 (10” and 12”) on request.

1) Free field of vision, not glass diameter2) Series TSG: 45 mm, 3) Series SGS: 122 mm, 4) Series SGS: 220 mm5) Flanges drilled to ANSI B 16.5, CI. 150, face-to-face and flange

dimensions are to ISO/DIN, see remarks on page 2

On request, an antistatic PFA lining is possible forthe sight glasses PSG, TSG and VSG.

Installation and connection dimensions (mm)

Nominal sizes and lining materials Approx. weights (kg)

Components and materialsDesignation

BodyArmouring

Lining

End pieceArmouring

Lining

Cover flange

Sight glass pane or

sight glass cylinder

Flat gasket

Nuts, bolts

MaterialsDuctile cast iron EN-JS 1049 (0.7043)

PFA, FEP (DN 150/6” PFA, DN 200/8” PTFE)

Ductile cast iron EN-JS 1049 (0.7043)

PFA, FEP (DN 150/6” PFA, DN 200/8” PTFE)

Ductile cast iron EN-JS 1049 (0.7043)

Borosilicate glass, e.g. MAXOS®

Aramide

Stainless steel

Vac

uu

m in

mb

arG

aug

e p

ress

ure

in b

ar

Vac

uu

m in

psi

aG

aug

e p

ress

ure

in p

sig

Pressure/temperature diagram forsight glasses PSG, TSG, VSG, SGS

Temperature in °F

Temperature in °C

PFA lining

FEP lining

FEP

linin

g

PFA

linin

g

PSG, TSG, VSG≤ DN 150

≤ 6”

PSGDN 200

8”

SGSDN 15 – DN 100

1/2”– 4”

on requeston request

Item100

102

106114

528w/o no.

on request on request6) Series SGS DN 15 and 20 (1/2” and 3/4”) for connection to ANSI CI. 150: threaded holes 1/2” UNC7) TSG 25 and 80 (1” and 3”): ANSI drilled flanges on request

6

SR

100

528

204

106

114

415

ø a

AL

DNd4

kD

nxd2

204

415

Presented by:

Sight glass withintegrated check valve

Fig.: Series SRZ-V with hollow plug and soft sealing seat made of FFKM fluorinated rubber (e.g. Kalrez®)

Broc

hure

no.

139

e 1.

02

Series SR: with solid ballSeries SR-B: with solid ball, valve seat sealSeries SRV: with hollow ballSeries SRV-B: with hollow ball, valve seat sealSeries SRZ-V: with hollow plug, valve seat seal

Fig. Series SR with check ball

For details on operating range, installationposition etc.: see Check Valves brochure

DesignationValve plug (valve ball)

Seat seal

MaterialsPTFE

FFKM or FKM

Item

Subject to changewithout notice.Printed in Germany.©ITT Richter Chemie-TechnikGmbH.

ITT Richter Chemie-Technik GmbHOtto-Schott-Straße 2D-47906 KempenTel. +49 (0) 21 52 / 146 - 0Fax +49 (0) 21 52 / 146 - 190www.itt-richter.de