Downhole back pressure valve

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Back Pressure Valve

Product Line Overview. Griffco offers many accessories to ensure proper pump and system operation, which help improve accuracy, efficiency, longevity, and safety. Accessories Explained. It is important for us to hear from you. See all results.

Back Pressure Valves. Help stabilize the downstream pressure and deliver consistent flow. Back Pressure Valves ensure that certain types of pumps deliver consistent flows or allow for high accuracy and stable operation.

Also known as loading valves or anti-siphon valves. Standard Materials. Standard Connections. Threaded Flanged Union Socket. Spring Ranges. Diaphragm Materials. Priming port Adjustment knob Metal tops Metal adjustment screw Material certifications. Variations and Options Include:. ARV Air release valve acts as a priming valve for a back pressure valve.

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Back Pressure Valve

This site requires cookies to allow access to certain content. By continuing to use this site, you agree to our cookie policy.A back pressure valve is a type of control valve that holds pressure on production vessels such as separators, treaters, and free water knockouts and releases upstream pressure when a designated set point is reached.

Kimray founder Garman O. Kimmell created this product in Up to that point, oil and gas producers had to supervise their wells and adjust back pressure by hand to keep production running.

This meant producers could more accurately control their pressure across a variety of flows using the regulator.

downhole back pressure valve

The spring pushes down on the diaphragm assembly, which positions the pilot plug. The pilot plug then allows gas from upstream to push down on the diaphragm. The flow through this valve is from underneath the plunger.

The flow pushes up on the plunger as the gas is pushing down on the diaphragm. Because the diaphragm has a larger surface area than the plunger, the same pressure can hold the valve in a closed position. If pressure exceeds the set point, the upstream pressure pushes up on the diaphragm assembly, closing off the pilot plug.

Gas then vents from the top of the diaphragm and the valve regulates the upstream pressure. If your Back Pressure Regulator is stuck in the ON position, the small red stopper may still be in the breather plug. If your Back Pressure Regulator is venting continuously, the likely cause is you have wet or dirty gas in your pipeline. To correct, remove, clean, and dry the pilot plug, then re-install it. Back Pressure Regulators are meant for gas only, so if this continues to be a problem, you may consider bringing in dry supply gas to your regulator.

If your regulator will not open, a likely cause is that the pilot plug seat is loose. With a wrench, make sure the pilot plug seat is snug. Make sure the nut is tightened down, but not causing the seat to bulge. If the seat is bulging, back off the nut a quarter turn at a time until the seat sits flat. Mega Menu Valves. Linear Electric. Rotary Electric. Linear Pneumatic. Drip Pots. Flow Meters. Flow Meter Accessories. Flow Monitors.

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Sense Line Protectors. Solenoid Valves. Supply Gas Regulators. Other Accessories. Float Operated Controllers.In closed-loop drilling operations, such as managed pressure drilling and underbalanced drilling, the DDV system helps you to increase tripping speeds, enhance personnel safety, and minimize formation damage. It also provides an added measure of security when pipe is not in the hole. The system features a flapper-type seal mechanism that contains reservoir fluids in the casing to prevent pressure at the surface.

When the flapper is in the open position, the system allows full-bore passage for the drill bit. Drop us a line to learn more about our no-snub, no-kill alternative to conventional tripping. One of our DDV representatives will get back to you very soon. Show search Menu. Latest Products. New product Foresite Sense. New Product Velox. New Product Centro. New product Foresite Flow. New Product Victus. Latest News. Latest News The oil field gets digitalized with fast Case-History highlights.

downhole back pressure valve

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Back Pressure Control Valves for High Flow Liquid or Gas Service

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Discover more about the DDV solution Drop us a line to learn more about our no-snub, no-kill alternative to conventional tripping.Equilibar offers precision back pressure control valves for a wide variety of industrial applications, both liquid and gas.

Select your size range below:. Request a Quote See All Products. Traditional back pressure regulators use springs to gradually open as the overpressure is used to compress the spring. This change in the spring constant as the spring is compressed is a major source of error.

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Equilibar back pressure regulators control pressure in a precise one-to-one ratio to a pilot signal that is applied to the top of a diaphragm. The other side of the diaphragm is exposed to the process media pressure that is being controlled.

The diaphragm moves in response to a sensitive and precise force balance between the process media pressure and the pilot pressure. The pilot pressure is provided by a simple mechanical regulator or with a remotely controlled electronic pressure regulator.

The internal operation of the Equilibar regulator can be seen in the cross section diagram at right. The diaphragm is the only moving part and acts as the regulator by directly sealing against the internal orifices. The result is instantaneous control keeping the inlet process pressure in tight equilibrium with the pilot regulator. Speak to an Engineer Download Brochure.

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The diaphragm inside the Equilibar back pressure valve is its own closed loop system. The precise pressure balance maintained by the diaphragm means that the Equilibar valve will automatically modulate the flow rate to keep the upstream pressure matched to the pressure setpoint. A complicated feedback regulator or hard to tune PID loop is not required. The diaphragm inside the Equilibar is frictionless and sensitive to very small changes in the upstream pressure.

This diaphragm compensates for system changes automatically and immediately to keep the pressure matched to the pilot pressure. The diaphragm is loaded with a compressed gas pilot signal. This allows the diaphragm to respond to changes in the upstream pressure or flow rate within 10mS. The Equilibar back pressure valve controls pressure using a multiple orifice design. As the flow rate increases or decreases more or fewer orifices will be brought in to play by the action of the diaphragm.

Only one orifice might be required to modulate for very low flow rates while multiple orifices will be used when higher flow rates or surges in the flow occur. Flow rate turn down ratios of overare achievable. The diaphragm inside the Equilibar regulator is flexible and strong as it is manufactured from modern polymers.

This diaphragm allows the valve to control back pressure over a very wide range. For example, a psi control valve could be expected to control pressures as low as 25 psi while maintaining accuracy.

The term back pressure control valve and back pressure regulator are often used interchangeably. The Equilibar valves shown on this page are also referred to back pressure regulators on the rest of this site.

However, Equilibar uses the term back pressure valve to describe regulators which are 1.The holiday was brilliant, absolutely fabulous to experience norway from South to the North.

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Totally trouble free holiday that more than met expectations. The country and cities looked wonderful, and the sledding with the huskies was unforgettable. The itinerary was easy to follow and very helpful.

Everyone was super nice and accommodating when I had questions or issues. It was a very pleasant trip and I would do it again in a heart beat. We love Larus at Nordic Visitor. He secured the perfect hotels and rooms for our family, and created an itinerary that perfectly suited our adventure-loving family. The hotels were very lovely, the car we rented was in excellent condition, and having a map that our agent marked up specially for us with highlighted stops was just one of the many extra special touches that Nordic Visitor provides.

While we were in Iceland, Larus took the time to phone us, our hotel and email us that a storm was on the way during part of our tour. He easily modified our hotel plans and made terrific recommendations that kept us safe and still exploring. Without his help, our day would likely have been fairly miserable. I cannot imagine trying to plan and navigate Iceland without the superb customer service that Larus and Nordic Visitor provided to us.

We have traveled the world, and we can recommend Nordic Visitor with top marks for their services. We are already planning to return to Iceland, and we will absolutely be using Larus and Nordic Visitor to plan a perfect trip again. We are very pleased with our tour guide, Trausti. He is very professional, knowledgeable, friendly and accomodating.

downhole back pressure valve

We are also, very happy that we were able to take this tour and thank Nordic Visitor for being accomodating as well. My sister and her husband are planning to visit Iceland next year and they will be booking with you.

downhole back pressure valve

Trip was really well organised. Solveig was so helpful and arranged everything so I could just enjoy being on holiday with my sons. And the weather was amazing too which helped. I was extremely happy with the entire experience. Since returning home I've already posted a review on your Facebook page and also comments on TripAdvisor. The tour was very well organised. We didn't have any problems with any aspect of the booking of the trip. Contact from Nordic Visitor employees was polite, helpful and responses were sent quickly.

We'll definitely return to Iceland and would use Nordic Visitor again. Really excellent holiday, thank you. We only booked a few days in advance and received excellent speedy service. Genuinely - one of the best trips we have ever undertaken. We received a great welcome in Kiruna, our guides were excellent - and made every experience unforgettable.

My adult son and I decided to go on a rather last minute trip to Iceland. An internet search led me, amongst others, to Nordic Visitor and was reassured to see they had achieved a Trip Advisor Certificate of Excellence in 2014 which was an incentive to feel confident in the quality of the trip and ultimately was the Company I chose to go with. I booked a four day, three night Northern Lights, Super Jeep Safari for myself and my son which we took in early February.There was not one glitch in the whole adventure.

We are in our 70's and probably won't get back to Norway, but we will tell anyone who is willing to listen that Nordic Visitor and Kolbrun are first class. As far as Norway itself goes, it has to be one of the most beautiful places on earth. And our tour hit some of the loveliest of Norway. When we first decided to use Nordic Visitor we thought the cost was a little steep.

But having had the experience, it was worth every penny. Thanks for a fantastic experience. Terri, United States Sweden's Top Three by Train, September 2016 Hotel accommodations very nice, excellent big breakfasts at all hotels.

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Convenient location to train stations. It was truly a relaxing and no stress tour for myself and my 86-year old father. Irja did an excellent job of customizing the tour for us. John, United Kingdom South Iceland at Leisure, September 2016 We really appreciated the arrangements made by Nordic Visitor. It dramatically lowered our stress level as we contemplated our first visit to such an unfamiliar place.

Each day on our trip, we realized how good a job Nordic Visitor had done. We loved our trip to a wonderful place. We will recommend Nordic Visitor to anyone who asks.

Scott, United States Romance Around Iceland, September 2016 Honestly felt nothing was left out and the trip couldn't have gone any better and all 6 of us that were on this are in full agreement on that. Maureen, Canada Iceland Grand Tour, September 2016 You have a very beautiful country with wonderful friendly people to deal with. There are so many natural wonders to see and experience and we loved it all, a true nature lover's paradise.

We were impressed by the cleanliness of the country, which shows pride in your environment. Ever person we met and spoke with, were so helpful and not only interested in talking proudly of their home, but took interest in us as well. Thank you for making our holiday very memorable. Brian, United States South and West in Detail, August 2016 We had an amazing experience from start to finish.

We worked with three travel advisors, and received great responses and support from each. We planned our trip rather quickly (booked late July and traveled late August) but the team was able to put together a great experience and a great intro to Iceland. From the car, to the hotel selections, to the activities, we got a wonderful introduction to Iceland and cannot wait for a return trip. Simon, United Kingdom Golden Route of the Nordic Countries, August 2016 We thought that Sofia's organisational skills were excellent.

Shelly, United Kingdom The Classic Scandinavian Roundtrip, August 2016 The hotels were great, especially the one in Copenhagen and Flam.We were not disappointed. The hosts were all friendly, engaging, and a delight to talk with. The accommodations ranged from newly constructed to buildings more than 100 years old. Many buildings were re-purposed from their original use to accommodations for travellers which was rewarding to see.

All the the accommodations were licenced which is a measure of ensured quality. All were clean, quiet and provided excellent breakfasts. The car rental was without hitches. When booking the tour we upgraded the car from economy to compact (a Citroen Cactus) as from our driving experience in northern Canada we knew a larger car is better on some roads.

We made the right choice and our overall experience with the car was very positive. The vouchers supplied by Nordic Visitor were all recognised by the service providers. Our reservations had all been made and no difficulties were encountered. I would like to thank Hafdis for her assistance in our trip planning. Her patience and prompt replies to our queries prior to the trip was very much appreciated, and the optional ideas she offered were helpful.

We enjoyed meeting her personally at Nordic Visitor HQ on our return to Reykjavik, to share some of our experiences. In general, we were pleased and impressed with the trip planning and the travel package that Nordic put together to make our road trip so relaxing and enjoyable.

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Every detail was looked after. The voucher system worked efficiently at hotel check-in, shuttle services and anywhere else ticketing was needed. Thanks NV for a great Icelandic experience. Over all the tour was amazing. We were able to modify the 7 day tour to 9 day tour. At our face to face meeting, we discussed the Blue Lagoon and decided it was best to go there on the last day on the way to the airport. This was taken care of right away away, Our vouchers were emailed and printed at the hotel for us.

Overall the whole experience was perfect. You took the stress away of laying out out route and suggested options. We used the map, the GPS and the road guides often.

We reviewed them each night to plan the next day. Having a car and a place to stay looked after made it very easy and flexible for us. We loved all the places booked for us.

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It was fantastic they offered breakfast for us. We would definitely use your services again some day and recommend to anyone considering a relaxing self drive vacation in Iceland. The roads in Iceland were far better than I had envisioned. Cheers, Singer, The entire experience was fabulous. Having everything organized and written out by day was great. Each day was fantastic. Providing the GPS coordinates was brilliant.