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Ashcroft 1133 Differential Pressure Gauge, Diaphragm Operated

Differential Pressure Gauge, Diaphragm Operated

The Type 1133 uses a convoluted- diaphragm to sense low inches of water differentials while ensuring no migration of the process media. Maximum static pressures for ranges of 5 IWD and below is 45 psi and 500 psi for all other ranges. Body materials are only available in Aluminum, with Buna, Viton or EPDM seals.⁽²⁾

• Large convoluted diaphragm actuator
• Stainless steel case
• Ranges from 1 IWD-25 IWD
• Static pressures up to 500 psi
• Aluminum⁽³⁾, stainless steel bodies⁽³⁾
• Buna-N seals (others available)
• Superior magnets for smoother power motion
• Standard switches available
• 5-year warranty

(1) Not for use with incompatible media. 
(2) Other wetted parts include stainless steel, Teflon and ceramic. 
(3) Not to be used with water or corrosive applications.

Select a link under the "item" tab below to order.

Table 1Table 2Table 3Table 4Table 5Table 6Table 7
Table 1Dial Size
Table 2Case Type
Table 3Body material
FDAluminum Dry
FLAluminum Glycerine Fill
ADBrass Dry
ALBrass Glycerine Fill
SDStainless Steel Dry
SLStainless Steel Glycerine Fill
Table 4Connection Size
25¼ NPTF
Table 5Connection Location
Table 6Optional Features
XFFFront Flange
XVDViton O-Rings
XGVSilicone Fill
XPDPlastic Window
XEKExplosion Proof
Table 7Standard Pressure Range
1”0-1 in. H20
2”0-2 in. H20
5”0-5 in. H20
10”0-10 in. H20
25”0-25 in. H20
Accuracy (Ascending) ±2%
Migration Zero
Range Limits 0-1 IWD to 25 IWD
Maximum Static Pressure 500 psi (all)
Actuator Convoluted Diaphragm
Case Material Stainless Steel
Dial Size 31⁄2˝ (35), 4˝ (40),
41⁄2˝ (45), 6˝ (60)
Maximum Process Temperature 175°F / 80°C
Body Materials Aluminum (F), Brass (A), Stainless Steel (S)
Seals Buna-N
Connection Size (Female) 1⁄4 NPT (25)
Connection Location In-Line (S), Lower (L), Back (B)
Window Glass
Warranty Five Years

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