12 Underwriters Laboratory/Factory Mutual Flanged Swing Check Valve
SKU: 45537043318

12 Underwriters Laboratory/Factory Mutual Flanged Swing Check Valve

Sale price$486.04 Regular price$540.04
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Description

12 Underwriters Laboratory/Factory Mutual Flanged Swing Check ValveThe 12 Underwriters Laboratory Factory Mutual Flanged Swing Check Valve is a one way valve designed to prevent backflow in fire protection and water systems. It is UL Listed and FM Approved, ensuring compliance with fire safety standards. The swing type disc mechanism allows flow in one direction and automatically closes when flow stops, preventing reverse flow. Designed for use with or without a lever and weight. A spring kit is also available for

The 12 Underwriters Laboratory/Factory Mutual Flanged Swing Check Valve is a one-way valve designed to prevent backflow in fire protection and water systems. It is UL Listed and FM Approved, ensuring compliance with fire safety standards. The swing-type disc mechanism allows flow in one direction and automatically closes when flow stops, preventing reverse flow. Designed for use with or without a lever and weight. A spring kit is also available for alternative operation.

Specification Details
TYPE Flanged Swing Check Valve
DESIGN Optional lever & weight or spring assist, helps control closure speed and reduce water hammer
MATERIAL Iron for strength and impact resistance
WEIGHT (LBS) 509.000
ADDITIONAL INFORMATION 698 mm Length, 483 mm Dia, 32 mm Flange Width, 432 mm Flange Hole Distance, 12 Holes, 25.4 mm Hole Diameter
BODY MATERIAL Ductile Iron
DISC MATERIAL Ductile Iron
CONNECTION TYPE Flanged
INLET TO OUTLET LENGTH 698 mm
NOMINAL SIZE 12"
OPENING SIZE 300 mm
PACKING MATERIAL Stainless Steel
PRESSURE RATING 300 psi
SEAL MATERIAL Rubber
SEAT MATERIAL ASTM B62 C83600 Brass Copper Alloy
TOP TO INLET CENTER 358 mm
TRIM MATERIAL Stainless Steel
APPLICATIONS Ideal for Fire Protection Systems, Municipal Water & Wastewater Systems, Pumping Stations, Industrial & Process Water Systems, HVAC & Cooling Systems
BRAND Midland Industries

 

Link to Midland Industries Catalog

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 45537043318

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HoundGal
Pawtucket, US
★★★★★ 3
Our Dog Loved These To Death
Style: 5 pcs Crinkle Plush Dog Toy
Our dog is The Toy Destroyer. These came up in a search for "heavy duty" and "durable" dog chew toys. They're nicely made, actually pretty, no stuffing to fly around the house. She loved them. Each one had to be shaken, "killed" and chewed. Only problem is they are lightweight - she got them ripped open quickly. Fortunately, she still enjoyed trotting them around and shaking them after she'd turned them into rags.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
K
Verified Purchase
Kindle Customer
Los Angeles, US
★★★★★ 5
Doggie
Style: 5 pcs Crinkle Plush Dog Toy
Dog really enjoys
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
S
Verified Purchase
Stacey Prunty
Charlottesville, US
★★★★★ 5
Good toy for dogs
Size: Large Size 3, Color: White-Blue
Bought this for our husky. Thought it would be bigger but it’s a good size for her. She has not managed to tear it apart after having it for a few months.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
E
Verified Purchase
Elizabeth Raiola
Birmingham, US
★★★★★ 5
Puppy proof!
Size: Large Size 3, Color: White-Blue
Purchased the blue ball. Puppy loves to carry and shake the ball with the strapes in her mouth. Lots of bite marks but hasnt popped it. We bought 2. She plays in her fenced in yard with them. Fun to throw and kick around.
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Reviewed in the United States on January 6, 2026
E
Verified Purchase
Erin Bryant
Omaha, US
★★★★★ 5
Great Toy For Playful Pup
Size: Medium Size 2, Color: White-Blue
We have purchased three of these! Our dog is obsessed with them and they keep her very entertained. The strap is a great tool for her to easily pick up the ball.
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Reviewed in the United States on April 26, 2026

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