Back Home. Plumbing. Valves. Backflow Preventers. Zurn 3/4 in. Brass Reduced Pressure Principle Backflow Preventer. Model# 34-975XL2S $ 753 57. Zurn 3/4 in. Bronze Double Check Valve Backflow Preventer. Model# 34-950XL $ 279 29. Woodford Add-On 3/4 in. Hose Thread Chrome Double-Check Backflow Preventer.

Back pressure safety valves 1. Introduction 2. Safety valve in the installation 3. Influence of back pressure on functioning behaviour 4. Limits of admissible back pressure (without metal bellow) 5. Back-pressure compensation using stainless steel bellow 7.

Back pressure valves reduce downtime and operating cost by allowing for repairs without killing the well. •Sizes available from 1-1/4" to 6-5/15" for BPV + TWC •The "H" Two-Way style Check Valve can be installed in the tu hanger for testing up to 15,000 psi. •Material options of 4130, 17-4 and Inconel.

Get the best deals for 3/4 pressure reducing valve at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

Watson McDaniel/Relief & Back Pressure Valves. 1; 2 · Next $203.65. Watson McDaniel Series 10691 Relief Valve (3/4" 25-100). $169.00 

Back Pressure Valve with External Sensor Line Series 510, Ductile Body Bulletin SSIN057 Issue/Rev. 0.1 (1/19) Notes: *6" Only; 26 sq. in. Topworks for 40-60 and 60-125 Spring Range; 65 sq. in. Topworks for 0-25 and 20-40 Spring Range; 2", 3" and 4" Valves; 26 sq. in. Topworks **Containment pressure is maximum working pressure and is limited by the

We have manufactured all Type "H" back pressure valves in-house since 1973 and they are available in many sizes and materials. We stock sizes from 1 ¼" OD all the way up to 6 11/16" OD in 4130 Alloy trim, 17-4 SS trim, and 718 Inconel trim. Working Pressures are 15,000 PSI on 1 ¼"-5" OD and 10,000 PSI on sizes greater than 5" OD.

Baird Valve and Regulator L.L.C., the original manufacturer of the Back Pressure Regulator, offers a full line of 1", 2" and 3" liquid and gas relief valves as well as a large stock of pump parts, cages, ball and seat testing machines and a variety of other oilfield related items.

3/4″ BACK PRESSURE CHECK VALVE STEEL – (3/4″ F.NPT X 3/4″ M.NPT)

If you are looking for high quality performing Adjustable Back Pressure Regulators, you have come to the right place! Our Pressure Bypass Valves are 

We strive to provide you with HIGH QUALITY products and UNBEATABLE prices! You can count on Straval, to satisfy your needs! If you need assistance, please don't be afraid to contact us. You can reach us by using the contact form. If you desire, you can give us a call at (973)340-9955 or at our toll free number 1 (888)380-9660. BPH-05-Npt