Our Products

Rotary Evaporator

Laboratory equipment

Jacketed Reactor

Contact Us

We Cherish All Interactions

Succeed at Vacuum System Troubleshooting | Chemical Processing

Succeed at Vacuum System Troubleshooting | Chemical Processing

Aug 31, 2015 · Excessive pump discharge or backpressure. A vacuum pump is designed to discharge to atmospheric pressure or just slightly above unless the manufacturer specifically designates it a compressor. As the discharge pressure of the pump increases above atmospheric pressure, this raises the differential pressure across the pump, resulting in:

Troubleshooting Pumps in a System | Pumps & Systems

Troubleshooting Pumps in a System | Pumps & Systems

This series focuses on evaluating piping systems for which calculated results do not match displayed plant instrumentation. Part 1 ("Troubleshooting Pumps in a System," Pumps & Systems, December 2015) examined the components of the pump and drive, and the conclusion of this series will examine possible causes for an increased discharge pressure.

Oil discharge from vacuum pump exhaust - possible causes .

Oil discharge from vacuum pump exhaust - possible causes .

To obtain the reasonably high vacuum level required for the resin infusion process it is normal to use a single stage oil flooded, rotary vane vacuum pump with an integral oil mist separator. This type of pump is a moderate cost means of achieving vacuum levels in the 98% - 99% vacuum region (20 mbar to 10 mbar of absolute pressure).

Education Safety

Education Safety

If the pump discharge pressure and suction vacuum were measured at start up, the latest readings should be compared to the originally recorded readings. When troubleshooting any pump and system, follow the high abnormal reading taken earlier. A higher than normal discharge pressure reading will indicate a decrease in suction vacuum, and could .

Installation and Service Instructions - Tuthill Pump

Installation and Service Instructions - Tuthill Pump

Model CK1B pumps are equipped with a mechanical seal and incorporate heavy-duty features, including special double-bearing construction with an inboard double ball bearing and an outboard roller bearing. There are five sizes, with capacities from 6 to 84 gpm and differential pressures to 250 psi. The maximum discharge pressure capability is 300 .

The 'Absolute' Best Way to Monitor Your Pumping System's .

The 'Absolute' Best Way to Monitor Your Pumping System's .

Let me pose the same question and math, after converting the suction and discharge values from the previous paragraph into absolute values. Let's say a pump's suction pressure is 5 PSIA, and the discharge pressure is 65 PSIA. The pressure differential across the pump is 60 PSIA (65 – 5 = 60).

Engineering Essentials: Fundamentals of Hydraulic Pumps .

Engineering Essentials: Fundamentals of Hydraulic Pumps .

So if the load-pressure setting of a pressure-compensated pump is 1,100 psi, the pump will increase or decrease its displacement (and output flow) based on a 1,300-psi discharge pressure. A two-stage pressure-compensator control, Figure 14, uses pilot flow at load pressure across an orifice in the main stage compensator spool to create a .

Polymer discharge pumps - Customised products solutions

Polymer discharge pumps - Customised products solutions

Suction pressure Vacuum up to max. 40 bar Transport pressure /differential pressure Up to 320 bar (4642 psig). The values listed are standard values and must not coincide under certain circumstances. Others values are available upon requests. Pump sizes From 4.7-22-22 (4.7 ccm/rev – 10 kg/h) to 25,000-360-360 (25,000 ccm/rev – 52,000 kg/h).

Two Stage Liquid Ring Vacuum Pump - Principles of .

Two Stage Liquid Ring Vacuum Pump - Principles of .

This increases the pressure until discharge takes place through the discharge port. A continuous flow of fresh sealing liquid is supplied to the pump via the sealing-liquid inlet. In the case of the two-stage liquid ring pump, the discharge from the first stage does not discharge to atmosphere.

Vacuum Pump Oil - HVAC School

Vacuum Pump Oil - HVAC School

Dec 26, 2018 · A seal in a vacuum pump between its high pressure and low pressure, or induction and exhaust sections of the pumping process, specifically for rotary vane pump application allows for separation of gas and oil within the pump reducing any unwanted contamination. . Vapor and Discharge You have oil running into a pump where It is mixed with .

Vacuum Pump Discharge & Air / Oil Separation

Vacuum Pump Discharge & Air / Oil Separation

Vacuum Pump Discharge & Air / Oil Separation. Oil mist exhaust filters capture oil fog, mist or smoke from the discharge of vacuum pumps. The EE and EF series designed for laboratory and medical vacuum pumps, these compact oil mist eliminators offer the option of a back pressure relief valve to evacuate collected contaminates.

Benefits of Vacuum Pump Systems | Pumps & Systems

Benefits of Vacuum Pump Systems | Pumps & Systems

Since the vacuum pump will not tolerate back pressure, the discharge manifold and discharge pipe centerline should be level or below the center of the inlet flange of the discharge separator. The discharge gas and seal water separator open to the atmosphere separator is not considered a pressure vessel since it discharges to the atmosphere.

Low Pressure Compressors | NASH Liquid Ring Technology

Low Pressure Compressors | NASH Liquid Ring Technology

Low pressure liquid ring compressors deliver reliable, proven performance for wastewater treatment, digester gas compression, aeration, and many other applications and industries. With a discharge pressure up to 30 psig (3 bar), Nash offers efficient, low pressure compressors with .

Education Safety

Education Safety

If the pump discharge pressure and suction vacuum were measured at start up, the latest readings should be compared to the originally recorded readings. When troubleshooting any pump and system, follow the high abnormal reading taken earlier. A higher than normal discharge pressure reading will indicate a decrease in suction vacuum, and could .

How to Operate and Maintain Your Liquid Ring Vacuum Pump .

How to Operate and Maintain Your Liquid Ring Vacuum Pump .

Recommended Approach to Liquid Ring Vacuum Pump Maintenance. Liquid-ring vacuum pumps are built for long-lasting, high powered performances and can generally withstand a range of pressure levels. That said, a vacuum pump does have its limit. Behavior traits that seem out of the ordinary could easily be indicative of developing troubles inside.

Pumping Condensate from Vented Receivers | Spirax Sarco

Pumping Condensate from Vented Receivers | Spirax Sarco

Vented pumps, pumping traps and pump-trap installations. Discharge lines from pumps vented to atmosphere are sized on the discharge rate of the pump. Condensate passing through pumping traps and pump-trap combinations in closed loop applications will often be at higher pressures and temperatures and flash steam will be formed in the discharge line.

TUTORIAL CENTRIFUGAL PUMP SYSTEMS

TUTORIAL CENTRIFUGAL PUMP SYSTEMS

If we apply this idea to the pump system of Figure 5, even though the discharge pipe end is open, it is possible to have pressure at the pump discharge because there is sufficient friction in the system and elevation difference.

Main affect of vacuum pump discharge pressure - Knowledge .

Main affect of vacuum pump discharge pressure - Knowledge .

And form a vacuum the suction port, that is to say, the discharge pressure is another major factor which affecting the operating efficiency of the liquid ring vacuum pump. The discharge pressure has big impact on the vacuum pump capacity and shaft power consumption. When the vacuum pump system is running, if the discharge pressure is larger .

How to Size Liquid Ring Vacuum Pumps

How to Size Liquid Ring Vacuum Pumps

The discharge pressure of the pump is needed to determine any reduction of pump capacity or any increase in operating horse-power. Most liquid ring vacuum pumps are designed to operate from a vacuum suction to an atmospheric discharge pressure. If the discharge pressure is increased, then more energy or brake

Two Stage Liquid Ring Vacuum Pump - Principles of .

Two Stage Liquid Ring Vacuum Pump - Principles of .

This increases the pressure until discharge takes place through the discharge port. A continuous flow of fresh sealing liquid is supplied to the pump via the sealing-liquid inlet. In the case of the two-stage liquid ring pump, the discharge from the first stage does not discharge to atmosphere.

Pump Terminology Used for Pump Selection

Pump Terminology Used for Pump Selection

Discharge Head: This is the vertical distance that you are able to pump liquid. For example, if your pump is rated for a maximum head of 18 feet, this does not mean that you are restricted to 18 feet of pipe. You can use 300 feet, so long as the final discharge point is not higher than 18 feet above the liquid being pumped.

Fundamentals of Vacuum | Hydraulics & Pneumatics

Fundamentals of Vacuum | Hydraulics & Pneumatics

Mechanical vacuum pumps. A conventional vacuum pump may be thought of as a compressor that operates with its intake below atmospheric pressure and the discharge at atmospheric pressure. Compressors and vacuum pumps have identical pumping mechanisms.

Centrifugal pump system tips, do's and dont's

Centrifugal pump system tips, do's and dont's

In residential systems, the pressure switch shuts the pump down when the pressure is high which means there is low or no flow. 3. Use pressure gauges. Make sure your pump has a pressure gauge on the discharge side close to the outlet of the pump this will help you diagnose pump system problems.

: pump discharge hose

: pump discharge hose

JGB Enterprises A008-0321-1625 Eagle Red PVC Discharge Hose, 2" x 25', Male x Water Shank Couplings, 150 psi Working Pressure, -14 Degree F to 170 Degree F .

Centrifugal Pumps - Engineering ToolBox

Centrifugal Pumps - Engineering ToolBox

p 1 = pressure at inlet (N/m 2) ρ = density (kg/m 3) g = acceleration of gravity (9.81) m/s 2. v 2 = velocity at the outlet (m/s) Head described in simple terms. a pump's vertical discharge "pressure-head" is the vertical lift in height - usually measured in feet or m of water - at which a pump can no longer exert enough pressure to move water.

Can Pump Suction Presure Be Higher Than Discharge Pressure .

Can Pump Suction Presure Be Higher Than Discharge Pressure .

Mar 11, 2013 · Max discharge pressure occurs at shutoff (discharge valve completely closed) and should be ≤ design pressure of discharge piping. 2. On the other head a positive displacement pump (PDP) creates flow, discharge pressure is the consequence of pressure drop (due to friction, elevation, etc) along its whole discharge line and destination pressure.

Pounds per Square Inch (PSI) and Total Dynamic Head (TDH .

Pounds per Square Inch (PSI) and Total Dynamic Head (TDH .

Differential pressure is used for pump and motor selection as it is the actual pressure the pump sees. DP is the pressure on the suction side of the pump plus the pressure on the discharge side of the pump in relation to the desired discharge pressure. If 50PSI is the desired discharge pressure and you have +10PSI on the suction side, the pump .

Blower Silencers, Vacuum Pump Silencers | pdblowers, Inc.

Blower Silencers, Vacuum Pump Silencers | pdblowers, Inc.

A pressure pulse is created each time this occurs. This pressure pulse creates noise and vibration. Blower silencers can be used to reduce this noise and vibration. Silencers are typically used on the inlet and discharge of a positive displacement blower used for pressure applications. A discharge silencer is typically used on a vacuum application.

Can Pump Suction Presure Be Higher Than Discharge Pressure .

Can Pump Suction Presure Be Higher Than Discharge Pressure .

Mar 11, 2013 · Max discharge pressure occurs at shutoff (discharge valve completely closed) and should be ≤ design pressure of discharge piping. 2. On the other head a positive displacement pump (PDP) creates flow, discharge pressure is the consequence of pressure drop (due to friction, elevation, etc) along its whole discharge line and destination pressure.

Evac EcoVac - Evac - Solutions

Evac EcoVac - Evac - Solutions

Vacuum: 2 x 4,0 - 7,5 kW Discharge: 2 x 3,0 kW: Operating data: Tank volume: 1,5m³ Operating volume: 0.8m³ Vacuum capacity: 2 x 175 - 300 m³/h (60Hz) Discharge capacity: 2x 18 m³/h (60Hz) Discharge pressure: 2 bar (up to 5 bar on request) Materials: Vacuum pums: Pump casing and claws: iron, PTGE coated inside Discharge pump: Pump casing .