Price:
$3494
Product ID:
WELCH-2585B-50
Lead Time:
Contact Us to inquire about lead times
Return Policy:
14 days for a full refund

Product Specifications

Free Air Displacement:
7.1 CFM
Ultimate Vacuum (absolute):
60 Torr
Positive Pressure Rating:
N/A
Pump Type:
Piston
Pump Category:
Dry / Oil Free
Pump Duty Type:
Medium
Motor Power:
0.33 HP

Features

* WOB-L Techology, Compact, reciprocating design for vacuum or pressure
* Table Top Application
* Suction Cup Feet
* Oil-Less, Non-Lube, Piston and Cylinder
* Permanently lubricated bearings
* Perfect Vacuum Pump for indoor settings
* No Oil, Vapor, and Contaminat Emissions
* Maintenance Free
* Welch Vacuum Manufacturer Warranty

Description

Welch, Dry, Oil Free Vacuum Pump featuring WOB-L technology. This particular model number is 2585B-50. The free air flow rate is 7.1 CFM and the ultimate vacuum rating is 60 Torr or (27.9inHg of Vacuum). This Pump comes with a power cord and a user manual. This is a very popular vacuum pump among laboratories, educational institutions, pharma, and biotech industries due to the fact that this pump is low maintenance and and oil free (dry) which can be used in indoor and closed rooms and environments without the risk of oil contamination. It does not come with connection hardware you will need to connect this vacuum pump your vacuum system. The Intake Port Thread of this pump is a 1/4 inch FNPT. Connected to this Intake port is a barb hose fitting for the 3/16 inch ID vacuum hose. To connect this pump to you vacuum system, you have two choices:

1. You can either connect a reinforce vinyl hose with 3/16 ID to the already present Barb Fitting.

2. You can unscrew the Barb Fitting and screw on your own fitting. Sometimes going from 3/16 inch ID hose to 1/4 inch ID hose will decrease your pump-down times by a factor of about 1.5.

Some of our Popular Items

Our clients prefer to work with us because we are Experts in Vacuum Science and Technology. There is a tremendous amount of valuable resources and information regarding vacuum systems and vacuum technology; check them out by clicking on the links below.

Altitude Package ASTM D6653 Leak Testing Systems
Altitude Package (ASTM D6653) Leak Testing Systems, or Testing Systems which test the effect of higher altitude on packages are vacuum systems that consist of a vacuum chamber, a vacuum controller, and a vacuum pump. The goal of these package testing systems is intended to test and investigate the effects of higher altitudes on the seal integrity, package quality, or container closure integrity.
Piston Vacuum Pumps
Piston Vacuum Pumps are devices that generate a vacuum through the workings of an internal piston. Several advantages of a piston pump include, low maintenance, no oil mist emission since it’s an oil free vacuum pump – the shortcoming are not as high of vacuum levels and volumetric flow.
Our Work: Research, Development, and Testing of Weather Balloons inside a Clear Vacuum Chamber
A wonderful company (more like one of the best companies in the world) which is currently involved with the research, development, and testing of high-altitude weather balloons, had a need for a vacuum chamber capable of achieving about 100 micro Torr (Micron) of ultimate Pressure for their testing environment. Fortunately, acrylic vacuum chambers are the perfect choice when it comes to Low, Rough, and Medium Vacuum.
Related Articles: Selecting a Proper Vacuum Pump for your Acrylic Vacuum Chamber
In this article we will talk about Vacuum Pumps - but also about other equipment which is used to produce vacuum inside a closed system or chamber. We will talk about the workings of a vacuum pump, vacuum generation, pump down, pump horsepower. This article is intended to provide you a practical guide which should help you select the appropriate vacuum pump for your system.

Additional Comments

1. Depiction: We go above and beyond to represent our products the best we can, but all images are for reference only. If you want the exact dimensions of a product, please refer to the product drawing. If the drawing is not present, please contact us.

2. Discount: If you are ordering more than one item you will qualify for a discount, contact us for more details. No discount will be given after you have ordered and then realized you can get a discount. We put in a lot of effort writing this and we don`t reward failure to read our descriptions. However, since we are nice guys, we will give you a discount on your next order.

3. Shipping: The shipping rates are for the lower 48 states only; additional shipping charges apply to Alaska, Hawaii, and international orders. Keep in mind that international order will also be subject to duty and other charges.

4. Products: Our products are built-to-order; therefore, your product can be customized, but you must let us know beforehand. The pricing, shipping terms, and lead time apply to orders of less than three (3) items. If you are ordering more than 3 items, you should contact us to discuss your quote.

5. Return Policy: 14 days on all standard products. We stand 100% behind our products. If there was a mistake on our part, you will be refunded 100% of your money including shipping. If the mistake was on your part or you decided that you didn`t want it after all, you will pay for shipping and we will fully refund rest of your money. Chamber must be insured during return shipping for the price that you paid for and in a non-damaged condition. Return Policy does NOT apply to custom items, jobs, or products. If you have asked us to modify any of our standard products, you will not be able to return your item.