mud pump pulsation dampener pre-charge pressure quotation

A properly serviced pulsation dampener is critical for your mud pumps’ efficiency, safety, and performance. Unfortunately, there aren’t many resources available to educate personnel on executing safe and effective servicing procedures. Please review the following steps with your personnel for safe pulsation dampener maintenance.

Should you or your personnel have any questions regarding pulsation dampener maintenance, please don’t hesitate to ask. Sigma is more than happy to help you to ensure safe and proper care is being completed on your pulsation dampening equipment.

Our custom-designed systems will absorb excess energy pulsing through the pump and piping system by creating a low-pressure area to dampen the excess shocks and vibrations. Because a pulsation dampener regulates the release of energy, your system will be better protected and run more smoothly. After installing a pulsation dampener, customers notice that their system:

For both onshore and offshore drilling applications, American Block’s pulsation dampeners are manufactured and hydro-tested by our legacy in-house team of experts. These dampeners are designed to meet the most demanding large-volume and high-slurry pump applications and provide ease of installation and elongated service life for the Operator.

The pulsation dampeners shall be installed properly to reduce the pressure fluctuation and smooth the liquid flow. In order to extend the lifespan of the air bag, it is highly recommended to maintain the suggested proportion of the pump pressure to the pre-charge pressure of the air bag for the pulsation dampeners. Generally, the pump pressure shall be 2/3 that of the discharge pressure and no more than 4.5MPa.

2. During maintenance, the pump pressure and the pressure inside the pulsation dampeners shall be zero. Since the residual pressure is generally small and can not be indicated on the pressure gauge, user shall confirm the pressure carefully to avoid accident caused by low pressure.

Mud Pump Pulsation Dampener is usually installed on the discharge line to reduce the fluctuation of pressure and displacement of the drilling mud pump.

Mud Pump Pulsation Dampener is a pneumatic device built into the outflow line of each UUD pump to dampen the pressure fluctuations resulting from the action of the pump. Although presented as a surge tank, this device is really a device that can be tuned to greatly diminish the output pulsations transmitted downstream from the mud pump. Unfortunately, the effectiveness of the pulsation dampener is a function of both output pump pressure and frequency of the pump pulsations.

Pulsation problems often start on the suction side. Pulsation or cavitation is caused by the variation of fluid movement within a contained system. Since fluid is non-compressible, the energy produced by this pulsation or cavitation must be compensated for. With the introduction of pulsation equipment into a system this energy now has a place to expend itself. Without the pulsation equipment involved in your pumping system, the pulsation or cavitation that is present can lead to the following:

This paper focuses on the operational experience that was gained during field test of the Hex Pump on a land rig in Jasper, Texas in October 2003. This field test showed that the pulsation frequency in the flow from the Hex Pump did not interfere with the MWD-measurements, providing a much cleaner signal to the directional driller. Also, the overall power consumption on the rig was reduced due to use of AC-motors.

The EQUAFLUX 100 pulsation dampener is installed downstream of the pump to reduce pulsations and create a smooth and laminar flow. The casing can be manufactured in many materials, including; polypropylene, PVDF, PPS-V and stainless steel 316. The diaphragms come in PTFE as standard, the combinations of material options make this pulsation dampener suitable for use with a wide range of fluids.

A pulsation dampener works by creating an area of low pressure that absorbs the pulsations emitted by the pump. A diaphragm is fitted that has a cushion of compressed air, this flexes and absorbs the pulsations. The EQUAFLUX 100 is connected to the air line and fed with compressed air, the diaphragm and air work in conjunction and automatically adjust the pressure to minimise pulsations in the pipework.

The EQUAFLUX 100 pulsation dampener can be utilised for many fluids in the industrial and marine markets, including; fuels, oils, chemicals, acids, waste water, glues, resins, paints and inks. Applications for this pulsation dampener include; mechanical and metalworking industry, ceramic industry, petrochemical, waste water treatment, biofuels, marine (bilge, slop, sewage), mining, textile industry, automotive industry, paint industry, cosmetic industry, cleaning industry and ink and print industry

This pulsation dampener is Atex zone 2 as standard meaning it is suitable for operation in non safe potentially flammable environments. As an option, this can can come in an Atex zone 1 version if required.

Mud pump pulsation dampeneris the mud pump discharge end main component, installs in the hydraulic end discharge pipe one end, plays the stable pressure and the pressure compensation function, the air bag work pressure is the mud pump work pressure 80%.Attention should be paid to the use of air bag, must be the first pressure relief.The mud pump of F500/F800 USES kb-45 air bag, and the mud pump of F1000/F1300/F1600 USES kb-75 air bag.The middle tie rod produced by our company is made of 35CrMo material, which has a smooth surface after chrome plating and fine grinding, greatly improving the wear resistance and corrosion resistance.

Proper installation and use of pulsation dampener can effectively reduce pressure fluctuations in the discharge system, thus achieving a more uniform fluid flow.In order to achieve a high service life of the air bag, always maintain the recommended ratio between the pump pressure and the air bag precharge pressure (generally not more than 2/3 of the pump discharge pressure, the maximum should not exceed 4.5mpa).

2. In the maintenance of air bag, air bag pressure must be zero, the pump pressure must be zero.Cannot rely on the pressure gauge to judge, because the residual pressure is small, the pressure gauge can not be displayed, but this low pressure will also lead to accidents!

For more information about pulsation dampeners, we sat down with Brandon Dalrymple and Nathan Ackeret fromBlacoh Fluid Control(manufacturer of pulsation dampeners, surge suppressors, and inlet stabilizers), and asked them to answer a few of our customers’ most common questions about pulsation dampeners.

Pulsation dampeners absorb the energy from the pulse wave created by a positive displacement pump, much like a shock absorber on a vehicle. Absorbing those pulse waves protects pipe welds and supports, and system components from damage due to pressure or excess movement.

A pulsation dampener creates an area of low pressure in the system with enough volume to absorb the pulsation. The pulsation dampener has a membrane with a "cushion" of compressible gas/air behind it that flexes to absorb the pulse, allowing a laminar flow downstream of the dampener.

Pulsation dampeners are commonly used wherever a positive displacement pump discharges flow in an unsteady manner, and where the pulse is not desired for the piping system. Air operated double diaphragm, metering and hose/peristaltic pumps typically benefit from a pulsation dampener.

The type of pulsation dampener used is typically defined by where they are placed in the system, and what they need to do. For example, "pulsation dampeners" are on the downstream side of the pump, "inlet stabilizers" are on the inlet side of the pump, and an accumulator or "surge suppressor" is used next to a valve or other device that restricts the flow in a system.

This video shows where you would place an inlet stabilizer, and how it is used to reduce the pulsation with an air operated diaphragm pump in suction lift conditions.

If you"re experiencing problems with rattling pipes, intermittent flow, water hammer, or pulsations in your system, don"t ignore it. Take the steps necessary to control these symptoms to prevent system deterioration down the road.

Need help with pulsations or water hammer problems? Ask us about it! We gladly provide technical assistance to businesses in Wisconsin and Upper Michigan.

We supplies forged and casted steel pulsation dampeners which are inter-changeable and compatible with Hydril series "K" dampeners, Emsco series "PD" dampeners and Bomco series "KB" dampeners. These units are dependable and reliable with API connections

3 and 1-4 for mounting options) with the mating flange connection at the bottom. The discharge dampener should be mounted as close as possible to the discharge port of the pump. If possible, it is advantageous that the dampener be mounted in such a way that the fluid stream is directed towards the fluid opening (see Figures 1-3 and 1-4) for maximum performance.

The correct precharge is vital for maximizing efficiency of the pulsation dampener. Generally, precharge pressure is based on the average operating pressure of the system, but precharge can be affected by other system parameters; for example. the use of MWD tools. For these applications, consult qualified Hydril personnel for correct precharging instructions.