Emerson Kunkle 337 Safety Relief Valve (8 Psig / 0.55 Barg or below) - DN50 (2")
SKU: 19779982215

Emerson Kunkle 337 Safety Relief Valve (8 Psig / 0.55 Barg or below) - DN50 (2")

Sale price$112.89 Regular price$125.43
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Emerson Kunkle 337 Safety Relief Valve (8 Psig / 0.55 Barg or below) - DN50 (2")Description This is a stock item. Order by 5pm for same day despatch. Emersons Kunkle 337 valve is purpose built to safeguard high capacity systems like blowers, compressors, and bulk equipment at mid to low pressure levels. Setting and testing of the valve is included free of charge, along with a pressure test certificate confirming this. Features: Large nozzle design provides high capacity. Flat bronze valve seats are lapped for optimum performance.

Description

This is a stock item. Order by 5pm for same day despatch.

Emerson’s Kunkle 337 valve is purpose-built to safeguard high-capacity systems like blowers, compressors, and bulk equipment at mid-to-low pressure levels.

Setting and testing of the valve is included free of charge, along with a pressure test certificate confirming this.

Features:

- Large nozzle design provides high capacity.
- Flat bronze valve seats are lapped for optimum performance.
- Warn ring offers easy adjustability for precise opening with minimum pre-open or simmer.
- Pivot between disc and spring corrects misalignment and compensates for spring side thrust.
- Model 337 has 'lift-pin' lift device for easy manual testing.
- Bronze nozzle and disc as standard. Optional SS trim available.
- Each valve tested and inspected for pressure setting and leakage.

Material: Body - Cast Iron / Nozzle - Bronze
Sizes: 2" to 3" (DN50 to DN80)
Connections: NPT Male Inlet x NPT Female Outlet or BSPT Male Inlet x BSPT Female Outlet
Orifice: 2" - 1.916 Sq.ins / 2.1/2" - 2.786 Sq.ins / 3" - 4.037 Sq.ins
Medium: Air
Pressure Range: 0.07 to 4.1 barg (1 to 60 psig)
Temperature Range: -29°C to 208°C (-20°F to 406°F)

Model Variants:

2" - Below 8 Psig - NPT - 0337-H01ANE-50
2" - Above 8 Psig - NPT - 0337-H01ANM-50
2" - Below 8 Psig - BSP - 0337-H60ANE-50
2" - Above 8 Psig - BSP - 0337-H60ANM-50

2.1/2" - Below 8 Psig - NPT - 0337-J01ANE-65
2.1/2" - Above 8 Psig - NPT - 0337-J01ANM-65
2.1/2" - Below 8 Psig - BSP - 0337-J60ANE-65
2.1/2" - Above 8 Psig - BSP - 0337-J60ANM-65

3" - Below 8 Psig - NPT - 0337-K01ANE-80
3" - Above 8 Psig - NPT - 0337-K01ANM-80
3" - Below 8 Psig - BSP - 0337-K60ANE-80
3" - Above 8 Psig - BSP - 0337-K60ANM-80

Datasheets

Emerson Kunkle 337 Safety Relief Valve Datasheet

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 19779982215

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Karina Z.
Grantham, US
★★★★★ 5
Perro 🐶 happy
Color: Yellow and Purple
Dior Emocionado con sus chanclas para remorder
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Reviewed in the United States on May 17, 2026
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TN doc
Omaha, US
★★★★★ 5
Excellent, unless your pup is a dedicated destructo-dog!
Color: Yellow and Orange
I purchased this twice for a young puppy. She loves these slippers, and they are quite resistent to her piranha teeth. The same can't be said for my adult Golden Retriever, who destroys almost every toy; it's one of his missions in life. A slipper accidently found its way to him, and he shredded it within about 45 minutes. I have to say that I'm surprised it lasted that long, attesting to its relative durability. Overall, I recommend these for most dogs.
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Reviewed in the United States on February 20, 2026
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Anm
Pawtucket, US
★★★★★ 1
Dangerous.
Color: Purple
Died in about 2 days. Dogs chewed it to bits and then tried to swallow the pieces. Would not recommend for pet safety. I don't have big dogs, I have littler puppies (3 and 5 months) - would likely have died instantly with big chewers.
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Reviewed in the United States on December 28, 2025
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Betty Green
Alexandria, US
★★★★★ 3
Disappointed they didn’t hold up long before pieces was being chewed off.
Color: Yellow and Purple
My minature poodle loved them till she started chewing pieces off of them so we had to dispose of them.
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Reviewed in the United States on May 31, 2026
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Laura
Lake Worth, US
★★★★★ 5
Good toy
Great toy for med dogs. A small one might have a bit of a hard time with the size but med and large dogs will love it. Thick plastic so they can’t pierce it quickly.
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Reviewed in the United States on February 4, 2026

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