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Absolute Vacuum Services Limited are Vacuum Pump Specialists For The Following Vacuum Pump Manufacturers:
Alcatel Vacuum Becker vacuum Busch Vacuum Edwards Vacuum Formerly BOC Edwards Vacuum Leybold Vacuum Pfeiffer vacuum Stokes pumps Varian vacuum

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Absolute Vacuum Services Ltd present the Edwards Vacuum ® range of vacuum pump products
Absolute Vacuum is a non-affiliated reseller of Edwards Vacuum ® products

Turbo vacuum pumps: Edwards (formely known as BOC Edwards) turbomolecular vacuum pumps

Edwards vacuum (formerly BOC Edwards) Turbomolecular pumps: Edwards STP-L301/STP-L301C turbomolecular pump

Edwards (formerly BOC Edwards) Vacuum - Turbo pumps and accessories

EXT turbomolecular pumps

EXT75DX compound turbomolecular pump
EXT255DX compound turbomolecular pump
EXT255H compound turbomolecular pump
EXT406PX compound turbomolecular pump
EXT556H compound turbomolecular pump

Turbomolecular pump controllers

Edwards Vacuum: EXC controllers
Edwards Vacuum: TIC turbo controller
Edwards: TIC turbo & instrument controller

EXT accessories

Edwards EXT accessories
EXT pump to controller cable
EXT ACX air-cooler
EXT BX bakeout band
EXT PRX10 purge-restrictor
EXT TAV vent-valve
EXT Vent-port adaptor
EXT Vibration isolator
EXT VRX vent-restrictor
EXT turbo pump spares

EXPT combined outfits

Edwards EXPT 1 &2 pumping stations

STP magnetically levitated turbomolecular pumps and accessories

Edwards Vacuum - STP turbo pumps
STP-XA4503C turbomolecular pump
STP-iX455 turbomolecular pump
STP301/STP301C turbomolecular pump
STP-L301/STP-L301C turbomolecular pump
STP603/STP603C turbomolecular pump
STP1003/STP1003C turbomolecular pump
STPH301C high performance turbo pump
STPH451C high performance turbo pump
STPA803C "advantage" turbo pump
STPA1303C "advantage" turbo pump
STPA1603C turbomolecular pump
STPA2203C "advantage" turbo pump
STP-XA2703C turbo pump
STP-XA3203C turbo pump

Edwards turbo molecular pumps (turbo vacuum pumps) overview, information and definitions

Edwards Vacuum STPL301/STPL301C turbomolecular pump

Edwards STP-L301 and corrosion resistant STP-L301C are for use in electron microscopes and semiconductor applications. Edwards rotor technology gives classleading performance for maximum process flexibility. The STP301 has been approved for use by major equipment manufacturers in the scientific instrument, semiconductor and magnetic media industries.

Edwards Vacuum STPL301/STPL301C turbomolecular pump
Features & benefits

Advanced rotor technology

Maximized process flexibility

Oil free

Low vibration

High reliability

Maintenance free

Advanced controller design

Auto tuning

Self diagnostic functions

d.c. motor drive

Battery-free operation

Compact design

Small footprint

Half rack controller

Edwards Vacuum STPL301/STPL301C turbomolecular pump
Pumping speed

(pumping speed vs inlet pressure)

Edwards Vacuum STPL301/STPL301C turbomolecular pump

Edwards Vacuum STP301/STPL301C turbomolecular pump
Compression ratio

(compression ration CR vs backing pressure)

Edwards Vacuum STPL301/STPL301C turbomolecular pump
Dimensions

A Connector
B Outlet port

Edwards Vacuum STPL301/STPL301C turbomolecular pump
Controller

Edwards Vacuum STP301/STP301C turbomolecular pump

Edwards Vacuum STPL301/STPL301C turbomolecular pump
Technical data

Inlet flange: ISO100 / DN100CF
Outlet port: KF25
Purge port: KF10 (C version only)
Pumping speed
N2: 260 l s^-1
H2: 290 l s^-1
Compression ratio
N2: 10⁸He: 5x10⁵
H2: 2 x 10⁴
Ultimate pressure with bake out
10^-6 order (10^-8 order) Pa (Torr)
Maximum allowable inlet pressure
Ambient cooled: 6.7 x 10^-2 (5 x 10^-4) Pa (Torr)
Maximum continuous outlet pressure
Ambient cooled: 13 (0.1) Pa (Torr)
Rated speed: 48000 rpm
Starting time: 3 min
Maximum inlet flange temperature: 120 ºC
Input voltage: 100 to 120 V a.c. (±10%) or 200 to 240 V a.c. (±10%)
Power consumption
Start up: 0.55 kVA
Weight
Pump 13 kg
Controller 7 kg

Edwards Vacuum STPL301/STPL301C turbomolecular pump
Ordering information

Product description Order No.

STP pump is supplied with an inlet screen. For a complete installation order an STP pump, a controller, a connection cable and power cable from the information below.

STP-L301
ISO100 inlet B75800090
DN100CF inlet PT470Z000

STP-L301C
ISO100 inlet B75800010
DN100CF inlet PT47AZ030

Controller
100-120 V 50/60 Hz B75800200
200-240 V 50/60 Hz B75800210

Connection cables
3 m B70700010
5 m B70700000
12 m PT21Y0B08

Power cables
Ring terminal 3 m B70700090
Ring terminal 5 m B70700040
European plug 3 m A50506010
UK plug 3 m A50505010

Options

Water cooling coil
Horizontal fitting RC1/4 B74801750

Vibration isolator
ISO100 B58046000
DN100CF B74834010