Mid-West 845-2
Item Number: MW8452
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$1,200.00
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Brand - Mid-West
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- Gauge Type: Diaphragm Differential Pressure
- Differential Pressure Range: 0-15 PSID / 0-100 KPA
- Differential Pressure Accuracy: ± .2 P.S.I.D. (Descending)
- Working Pressure: 200 PSIG
- Hose Length: Three 5' color-coded hoses
- Wetted Internals: EP Elastomers, Brass, 316 S.S.
- Case Material: Durable Molded Plastic
- Warranty: 5 Year
Description
Description
The Mid-West 845-2 is a two-valve backflow test kit designed for comprehensive testing of reduced pressure principle, pressure vacuum breaker, and double check valve backflow prevention assemblies. It features a 4.5" differential pressure gauge with a 0-15 PSID range and ±.2 PSID accuracy. The kit includes three 5-foot color-coded hoses with inline filters and Schrader 1/4" brass coupler end fittings, plus three sets of brass adaptor fittings for standard test cock hookup. Encased in a durable molded plastic carrying case with storage compartments, this portable kit is built with glass-reinforced engineering thermoplastic and wetted internals of EP elastomers, brass, and 316 S.S. metal parts. It comes with a 5-year warranty.
Help Me Connect
Help Me Connect
Compatibility
- The Mid-West 845-2 two-valve kit is designed to test all brands of reduced pressure principle, pressure vacuum breaker, and double check valve backflow prevention assemblies.
Connections
- The kit includes three sets of brass adaptor fittings to ensure proper hookup to all standard size test cocks.
- The three 5-foot color-coded hoses feature inline filters and Schrader ¼” brass coupler end fittings for secure and clean connections.

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Additional Details
The Mid-West 845-2 is a two-valve backflow test kit designed for comprehensive testing of all brands of reduced pressure principle, pressure vacuum breaker, and double check valve backflow prevention assemblies.
This test kit incorporates over 30 years of input from backflow technicians to provide reliable and accurate performance in the field.
Key Features
- Specially designed for testing backflow prevention assemblies
- Equipped with soft-seated brass needle valves (with replaceable valve seats)
- 90 micron filters protect the kit by minimizing plugging from scale and sand, with cleanable/replaceable elements
- Features a portable design that is removable from its case for convenience
- Includes a durable molded plastic carrying case with improved storage compartments for fittings and tools
- Test procedures are laminated in clear plastic for easy reference
- Backed by a 5-year warranty
Gauge and Hoses
- Easy-to-read 4.5 inch differential pressure gauge with 0-15 PSID / 0-100 KPA range
- Includes three 5-foot long color-coded hoses with inline filters and Schrader ¼” brass coupler end fittings
- Features a 1.5 inch line pressure gauge with a 0-200 PSIG range
Warning: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Specifications
- Gauge Type: Diaphragm Differential Pressure
- Dial Size & Range: 4.5 inch (0-15 PSID / 0-100 KPA Differential Pressure)
- Differential Pressure Accuracy: ± .2 P.S.I.D. (Descending)
- Working Pressure: 200 PSIG
- Body Material: Glass Reinforced Engineering Thermoplastic
- Wetted Internals: EP Elastomers, Brass, and 316 S.S. Metal Parts
- Line Pressure Gauge: 1.5 inch (0-200 PSIG)
- Gauge Weight: 2.9 lbs / 1.3 kg
- Warranty: 5 Year
Hoses and Fittings
- Hose Length: Three (3) each / 5 foot long (color-coded)
- End Fittings: Inline Filters & Schrader ¼” brass coupler
- Adaptor Fittings: (3) sets of brass fittings provided for hookup to all standard size test cocks
Case Details
- Case Material: Durable Molded Plastic
- Case Size: 18.5 inch L x 9 inch W x 9.75 inch H
Performance & Environment
- Maximum Temperature: 150°F / 65°C
- Temperature Warning: Freezing temperatures must be avoided
Certificates & Approvals
- Acceptable by: FCCC, HR-USC, CA-NV AWWA
- Capable of performing procedures by: ASSE, AWWA, CSA, FCCC, HR-USC, NEWWA, ABPA, UF-TREEO
- Quality System: Certified Quality System
- Standard: CSA B51-09 SAI GLOBAL
FAQs
What types of backflow assemblies can the Mid-West 845-2 test?
The Mid-West 845-2 is capable of testing all brands of reduced pressure principle, pressure vacuum breaker, and double check valve backflow prevention assemblies.
What is the pressure range of the differential gauge included with this kit?
The differential pressure gauge has a range of 0-15 PSID (Pounds per Square Inch Differential) or 0-100 KPA (Kilopascals).
What materials are used for the body and wetted internals of the Mid-West 845-2?
The gauge body is made from glass-reinforced engineering thermoplastic. The wetted internals consist of EP elastomers, brass, and 316 stainless steel metal parts.
Does the kit include all necessary fittings for connecting to standard test cocks?
Yes, the kit comes with three sets of brass adaptor fittings specifically provided for hookup to all standard size test cocks.
What are the temperature limitations for operating the Mid-West 845-2?
This backflow test kit has a maximum operating temperature of 150°F (65°C). It is crucial to avoid freezing temperatures to prevent damage to the instrument.