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  • Simple, rugged, compact differential pressure gauge
  • Ranges from 0 inH2O to 20 inH2O through 0 psid to 100 psid
  • Engineered plastic gauge case
  • Black anodized Aluminum housing, 316 Stainless Steel optional
1100 Series Diaphragm Type Differential Pressure Gauges
Unit of Measure
1 

Part Number

Description

Series

Connection Location

Pressure Range

O-Ring and Diaphragm Materials

25-1112-P25-A3P-3 N/A 2-1/2" Differential, 0 to 25 psid, 2 x 1/4" National Pipe Thread (NPT) Back Connection Gauge with Aluminum Sensor Housing, Nitrile Butadiene Rubber (NBR) O-Ring, Engineered Plastic Case, Acrylic Lens, and Maximum Indicating Pointer N/A 1000 N/A Back N/A 0 to 25 psid N/A Nitrile Rubber (NBR)
25-1112-W200-A3P-1 N/A 2-1/2" Differential, 0 to 200 inH2O, 2 x 1/4" National Pipe Thread (NPT) Back Connection Gauge with Aluminum Sensor Housing, Nitrile Butadiene Rubber (NBR) O-Ring, Engineered Plastic Case, and Acrylic Lens N/A 1000 N/A Back N/A 0 to 200 inH2O N/A Nitrile Rubber (NBR)
25-1112-W50-S2P-1 N/A 2-1/2" Differential, 0 to 50 inH2O, 2 x 1/4" National Pipe Thread (NPT) Back Connection Gauge with 316L Stainless Steel Sensor Housing, Fluoroelastomer (FKM) O-Ring, Engineered Plastic Case, and Acrylic Lens N/A 1000 N/A Back N/A 0 to 50 inH2O N/A Fluoroelastomer (FKM)
45-1102-P30-A2P-1-GY N/A 4-1/2" Differential, 0 to 30 psid, 2 x 1/4" National Pipe Thread (NPT) Top/Bottom Connection Gauge with Aluminum Sensor Housing, Fluoroelastomer (FKM) O-Ring, Engineered Plastic Case, Shatter-Resistant Acrylic Lens, and Glycerin Fill N/A 1000 N/A Dual Top and Bottom (Not available with switch or transmitter option) N/A 0 to 30 psid N/A Fluoroelastomer (FKM)
45-1112-P25-S3P-1 N/A 4-1/2" Differential, 0 to 25 psid, 2 x 1/4" National Pipe Thread (NPT) Back Connection Gauge with 316L Stainless Steel Sensor Housing, Nitrile Butadiene Rubber (NBR) O-Ring, Engineered Plastic Case, and Shatter-Resistant Acrylic Lens N/A 1000 N/A Back N/A 0 to 25 psid N/A Nitrile Rubber (NBR)
45-1132-P30-S2A-1-GY N/A 4-1/2" Differential, 0 to 30 psid, 2 x 1/4" National Pipe Thread (NPT) Bottom Connection Gauge with 316L Stainless Steel Sensor Housing, Fluoroelastomer (FKM) O-Ring, Aluminum Case, Shatter-Resistant Acrylic Lens, and Glycerin Fill N/A 1000 N/A Back N/A 0 to 30 psid N/A Fluoroelastomer (FKM)
25-1102-W50-S2P-1 N/A 2-1/2" Differential, 0 to 50 inH2O, 2 x 1/4" National Pipe Thread (NPT) Dual Top and Bottom Connection Gauge with 316L Stainless Steel Sensor Housing, Fluoroelastomer (FKM) O-Ring, Engineered Plastic Case, and Acrylic Lens N/A 1000 N/A Dual Top and Bottom N/A 0 to 50 inH2O N/A Fluoroelastomer (FKM)
Unit of Measure
1