P91/CFN 100mm Flanged Schaffer Diaphragm DMC Case0 pages

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Model: P91/CFN

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SCHAFFER DIAPHRAGM GAUGE

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DMC CASE FLANGE CONNECTION

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The model P91/SE Schaffer Diaphragm gauges are manufactured

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with a special DMC (Dough Moulding Compound) safety case

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and are designed for use on slurries, viscous or corrosive fluids

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that would normally attack or block standard bourdon tubes.

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Implementing specialist materials for both the connection and

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diaphragm enable the Shaffer Diaphragm gauge to be configured

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for use on any gaseous or liquid media including suspended

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solids or powders. The direct drive from the diaphragm to the

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movement ensures a more positive indication of pressure than

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other models of tube gauges.

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Offering a full range of flanged connection sizes and materials,

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Schaffer Diaphragm gauges can operate at pressure ranges

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as low as 30 mBar with the option to permit units to withstand

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a maximum pressure of 70 bar.

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Size

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100 mm (4")

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Mounting

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Direct

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Case & Bezel

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DMC (Dough Moulding Compound) is glass-reinforced

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polyester with central partition and blow out back. It has

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extremely high impact strength, is self-extinguishing.

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Scale Ranges

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0 to 30 mBar up to 25 bar Pressure / Compound ranges

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Equivalent units of pressure / vacuum available

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Single and dual scales are available

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Option: Custom scales for special applications, i.e. tank contents

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Overload

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Units withstands overload pressure up to 125% of FSD

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See reverse for maximum overloads for different materials

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Pressure Connection

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Flange Sizes 1/2", 3/4", 1 ", 1.5" &2"

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Rated 150, 300, 600, 900 & 1 500, Raised Face

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Also Available: DN15, DN20, DN 25, DN 40 & DN50 PN10-40

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and 1/2", 3/4", 1 ", 1.5" 2" Table A-E

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All Connections have a Bobin Neck assembly except flanges

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1.5" & 2" 900/1500RF & DN50, where this is not required

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Connection Material

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316 Stainless Steel as standard

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Options: Carbon Steel, Monel, Titanium, Hastelloy, Tantalum

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Lining Options: PTFE, Halar, PDA

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Diaphragm Material

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316 Stainless Steel as standard

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Options: Monel, Tantalum, Hastelloy, Silver or PTFE Protected

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Other materials to suit application are available

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Accuracy Class

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1.0% of FSD as defined in EN837-1

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1.5% of FSD if diaphragm is protected

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HBudenberg

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Dial

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White Anodised Aluminium marked in black finish

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Dual scales, bands and sectors are also available

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Customisation with company Name & Logo

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Pointer

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Stainless steel coloured black

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Option: Micrometer adjustable pointer for Rangesa 350 mBar

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Movement

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Stainless Steel Construction

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Window

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Laminated Safety Glass (Standard)

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Option: Acrylic Plastic Window

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Environmental Rating

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IP67 as defined in EN 60 529

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Traceability

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All instruments are individually calibrated and have an unique

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Serial Number printed on the dial. A Certificate of Conformity

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Traceable to National Standards is Supplied Free of Charge

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Certification available

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BS EN 10204 3.1 B Material Certification

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Point by Point Test Certificate

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Safety

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All units are manufactured to comply with EN 837-1, S3

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specification and other regulatory standards including PED.

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Installation instructions

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Refer to EN 837-2

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Temperature

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Operating: -20 to +90 °C

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Storage: -40 up to +100 °C

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For lower or higher operating temperatures, please contact

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our Sales Office

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Rev-03 May 2006

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Designed and Manufactured in UK.

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Datasheet BUD-026

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