GEMU Type 643 Sanitary Diaphragm Valve, Manually Operated on Gemu Valves Gemu Valves - GEMU Type 643 Sanitary Diaphragm Valve, Manually Operated
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All Categories > Sanitary Diaphragm Valves > Manually Operated Sanitary Diaphragm Valves > GEMU Type 643 Sanitary Diaphragm Valve, Manually Operated 

GEMU Type 643 Sanitary Diaphragm Valve, Manually Operated
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Nominal sizes 1”- 1½”, with stainless steel bonnet, bevel gear operated for tank bottom clearance consideration or piping convenience ½”– 1½” connections

Standard Features 
  • Stainless steel bonnet with sanitary internals
  • Ultem® 1000 polymer handwheel,
  • EHEDG certified sealing concept
  • Autoclavable
  • Compact design
  • Visual position indicator
  • Second generation PTFE or EPDM diaphragm
  • Body material forged 316L stainless steel
  • Integral buttweld tube extensions or triclamp
Available Options

Special connections
-   Welded extensions, (tube or pipe)
-   ISO, DIN and other international standards
 
Fabrications
Cluster valve assemblies, Zero Static T-valves, Duplex, Multiported, Tank Bottom/Side Sampling and custom multiported block valves upon request.

Materials
AL-6XN®, Hastelloy® Titanium®, and other alloys available upon request.

Typical Applications
  • Pharmaceutical manufacturing
  • Bioprocessing
  • Cosmetic
  • Brewery Service
  • Food and Beverage
  • Semiconductor
  • High Purity Chemicals


643-P

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Dimensional-Drawing-643

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Specifications

Type

Type 643 manual, SS Flanged Bonnet (Designed for all body types), Polymer h/wt, with 90 degree handle

Nominal Size

1 1/2"
1"
1/2"
3/4"

Body Configuration

Standard 2-Way
Tank Bottom

Connection

Butt-Weld
Butt-Weld Extension
Clamp x Butt-Weld
Clamp x Butt-Weld Extension
Clamp x Clamp

Body Material

316L Stainless Steel

Diaphragm Material

EPDM Diaphragm, Code 13, EPDM Diaphragm Compliant to USP Class VI, Chapter <87>, <88> and 21 CFR 177.2600
EPDM Diaphragm, Code 16, EPDM Diaphragm Compliant to USP Class VI, Chapter <87>, <88> and 21 CFR 177.2600
EPDM Diaphragm, Code 17, EPDM Diaphragm Compliant to USP Class VI, Chapter <87>, <88> and 21 CFR 177.2600
PTFE diaphragm
TFM / EPDM 2-piece molded closed, Code 5E, TFM / EPDM Diaphragm Compliant to USP Class VI, Chapter <87>, <88> and 21 CFR 177.1550
TFM / EPDM Laminated, TFM / EPDM Diaphragm Compliant to USP Class VI, Chapter <87>, <88> and 21 CFR 177.1550

Control Function

Manually Operated

Surface Finish

15µ-in max EP SFV4
20µ-in max SFV1
20µ-in max EP SFV5
25µ-in max SFV2
25µ-in max EP SFV6
30µ-in max SFV3
35µ-in avg
35µ-in avg EP


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