SKU: 33344981437

Emerson Kunkle 337 Safety Relief Valve (25 Psig / 1.7 Barg or below) - DN80 (3")

Sale price$245.38 Regular price$272.64
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Ships within 48 hours · Estimated delivery Sep 6 - Sep 11

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Description

Emerson Kunkle 337 Safety Relief Valve (25 Psig / 1.7 Barg or below) - DN80 (3")Description This is a stock item. Order by 5pm for same day despatch. Emerson Kunkle 337 safety valves offer essential protection for bulk hauling rigs, blowers, compressors, and conveying systems operating at low to medium pressure. 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

Description

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

Emerson Kunkle 337 safety valves offer essential protection for bulk hauling rigs, blowers, compressors, and conveying systems operating at low to medium pressure.

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: 33344981437

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MC
Lowell, US
★★★★★ 4
Puppy loves her baby
Purchased for a 9 week old puppy, she is now 18 weeks, took the heartbeat out and it’s her baby, drags it everywhere and hasn’t ripped it to shreds.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
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Simon Lindley
Lowell, US
★★★★★ 5
Incredible smoothly
I recently purchased the Heartbeat Puppy Calming Kit, and it has been a game-changer for my anxious puppy! The heartbeat toy is incredibly soothing and helps my puppy sleep soundly through the night. The lick mats and treat ball keep her entertained and busy, which has significantly reduced her separation anxiety. The quality of all the items is excellent, and they are durable enough to withstand daily use. This kit is a must-have for any new puppy owner looking to provide comfort and training aids. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025
N
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Nikki
Fort Morgan, US
★★★★★ 5
Durable and Great for Teething!
Size: X-Large, Color: Textured Ring, Size: X-Large, Color: Textured Ring
This Nylabone Power Chew Textured Ring is a great find! It’s a pretty big ring, which is perfect because my puppy can grow into it. She already loves it and spends a good amount of time chewing on it. She’s a big teether, so I was specifically looking for something she could gnaw on that wasn’t plastic, and this has been so much better than the other things she tries to get her teeth into. It seems durable, keeps her occupied, and the price is great for the quality. I’ll definitely be buying another one when needed!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
C
Verified Purchase
César
Whiting, US
★★★★★ 5
Durable toy!
Size: Small, Color: Textured Ring, Size: Small, Color: Textured Ring
Great toy for my beautiful Canela, she found it fun to play and chew all day long, the material is very strong, she could not destroy it, I did not smell beef or meat.
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Reviewed in the United States on May 9, 2026
R
Verified Purchase
Rachael
Dallas, US
★★★★★ 5
As durable as expected.
Size: Large, Color: Femur Bone, Size: Large, Color: Femur Bone
My dog loves it—more than any other bone she’s ever had. It’s not quite as durable as regular nylabone, but we expected that. This photo was taken after around 2 hours of super aggressive chewing by a very big German shepherd. It has no discernible smell, but obviously it has a flavor because she doesn’t want to put it down even for trips outside. It’s soft enough that it doesn’t cause that “are their teeth breaking?!” sound that a lot of offbrand nylon chews have. The classic femur shape is perfect. It’s the easiest shape for her to hold naturally. All around, perfect dog chew.
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Reviewed in the United States on April 11, 2026

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