Gemu Valves » BioTech Valves

EPDM Diaphragm

amy — Wed, 04 Mar 2009 10:33:56 +0000

EPDM Diaphragm
code 17 for sterile applications

Surface Finishes

admin — Wed, 03 Dec 2008 09:56:55 +0000

Ever increasing purity requirements in the pharmaceutical and bio-technology industries require surfaces in contact with wet processes to have finishes that meet BPE standards.

GEMÜ provides the highest quality surface finishes in the industry. Multiple surface readings are taken on every valve to ensure the highest quality.

Electropolishing

GEMÜ’s electro-polishing is performed in a 12-station electro-polishing process which includes proper pre and post cleaning as well as passivation of all parts. The results of eletropolishing can not be achieved by no other method of polishing. You can achieve bright and shiny appearances by Mechanical polishing, but it may leave the surface layer distorted, highly stressed, and contaminated with grinding media.

Some benefits of electropolishing are:

Increased corrosion resistance
Cleaner surface of the “wet contact” areas
Removal of surface occlusions
Reduce surface friction


32 µ-in	25 µ-in	20 µ-in	11 µ-in

Old Code	New Code
3	3	32 µin-max (.89 µm, 150 grit) Interior, Foundry exterior
5	1502	25 µin-max (.64 µm, 180 grit) Interior, Foundry exterior
6	1508	20 µin-max (.64 µm, 180 grit) Interior, Electropolish int./ext.
7	1507	20 µin-max (.51 µm, 240 grit) Interior, Foundry exterior
8	1537	15 µin-max (.51 µm, 240 grit) Interior, Electropolish int./ext.
9	1536	11 µin-max (.28 µm, 320 grit) Interior, Foundry exterior
10	1516	10 µin-max (.28 µm, 320 grit) Interior, Electropolish int./ext.

Access Valves & Steam Blocks

admin — Thu, 06 Nov 2008 12:44:55 +0000

The standard GEMÜ diaphragm valve body can be supplied with various porting options, providing access to the process systems. These ports are used to connect purge, steam, CIP or sampling devices. Due to the design of our forged valve bodies, same size access ports can be provided.

Various end connections such as buttweld, triclamp, compression fittings, etc. can be supplied per customer specification.

Steam Blocks
Various steam block arrangements are available and are fabricated based on customer specification for either vertical or horizontal orientation.

By-Pass Valves

admin — Thu, 06 Nov 2008 12:43:07 +0000

The standard GEMÜ diaphragm valve body can be supplied with a "By-Pass" valve machined into the main valve body. This design enables a smaller amount of process medium to flow through the valve by-passing the weir of the main valve. The valve is designed to be self-draining when installed in the horizontal or vertical position.
Available Combinations:

Main Valve size 1" through 3"
Valve Type 671, 672, 675, 640, 687, 695, 673, 688, 698

By-Pass size 1/4", 3/8", 1/2"
Valve Type 601, 602, 605, 618, 641

All standard end connections, surface finish and components are available.

Main Valve By-Pass Valve

Tank Bottom Valves

admin — Thu, 06 Nov 2008 12:37:08 +0000

The design of the GEMÜ Tank Bottom Diaphragm Valve is based on the design of the standard diaphragm valve. However, unlike conventionally available tank valves, the GEMÜ Tank Bottom Valve is machined from solid bar stock. Also, since this valve is not a welded construction, there is no reason to worry about non-fully penetrated or defective welds, which are potential areas of contamination.

For more information about design features and technical details, call GEMÜ and order the GEMÜ Tank Bottom Valve Brochure.

GMP & SAP Valves

admin — Thu, 06 Nov 2008 12:22:17 +0000

The GEMÜ GMP (Good Manufacturing Practice) Valve is typically installed in a vertical position and the SAP (Sterile Access Port) valve in the horizontal position.

The funtion of a “T” fitting and a branch valve is combined into the valve body. The third port is located in line with the weir (point of seal).

GMP

SAP

Port Sizes Available
Valve Type	Size	1/4"	3/8"	1/2"	3/4"	1"	1-1/2"	2"	2-1/2"	3"	4"
601-605	1/4"	•	•	•
	3/8"	•	•	•
	1/2"	•	•	•
611-625	3/8"	•	•	•
	1/2"	•	•	•
	3/4"	•	•	•	•
671-698	1/2"	•	•	•	•	•
	3/4"	•	•	•	•	•
	1"	•	•	•	•	•
	1-1/2"	•	•	•	•	•	•
	2"	•	•	•	•	•	•	•
	2-1/2"	•	•	•	•	•	•	•	•
	3"	•	•	•	•	•	•	•	•	•
	4"	•	•	•	•	•	•	•	•	•	•

Custom Fabrications

admin — Thu, 06 Nov 2008 12:14:09 +0000

GEMÜ offers a wide range of custom designed multi-ported single block valve assemblies and cluster valve fabrications, which in most cases are designed in close cooperation with the customer (an engineering company, contractor or end user).

The valve fabrication or "valve cluster" is designed on AutoCAD, which enables easy daily exchange between the customer and GEMÜ. This enables GEMÜ to keep turn around time of a new design to a minimum.

Another advantage of in-house valve assemblies is keeping drainability and minimum valve deadlegs to an optimum

U-Bends

admin — Mon, 03 Nov 2008 11:31:37 +0000

GEMÜ offers the "Zero Static T-Valve" and U-bend with an integrated sample valve, which is called the "Duplex Valve".

As pictured, the sample valve (size 1/4" to 1/2") is machined into the opposite side of the T-Valve, ensuring full drainability and a zero deadleg.

Zero Deadleg T-Valves

admin — Mon, 03 Nov 2008 11:30:58 +0000

The GEMÜ "Zero deadleg T-Valve" is machined from one piece of 316L barstock material. Unlike conventional designs, which are available to today’s pharmaceutical industry, this valve offers the advantage of total flexibility of size ranges regarding branch versus spool piece and still offers a total zero deadleg solution with full drainablilty. Also, since this valve is not a welded construction, there is no reason to worry about non-fully penetrated welds or even defective welds.

• Sizes range from 1/4" x 1/4" to 4" x 4". For other sizes, consult factory.
• Perfect for use as a WFI point of use valves, sampling or product transfer.

Sanitary Diaphragm Valves

admin — Mon, 03 Nov 2008 11:25:19 +0000

Continuously trained staff, modern data processing systems and machinery that is far above average, guarantee maximum quality and individuality from the arrival of orders to the finished product. Utilizing advanced three-dimensional design and the programming capabilities of our 5-axis machining centers, we can design and configure “application-oriented products”. Our computer can show special valve bodies such as T, Y, H, V, tank bottom and sampling geometries in the requested mounting orientation. Multi-ported bodies for diaphragm valves which can be sterilized already exists.

Typical Applications Include:

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