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Ramsey

Ramsey Conveyor Protection Switches





Protect your equipment, prevent accidents and reduce unscheduled shutdowns with Thermo Scientific Ramsey conveyor protection switches. Our switches are used for position information, for control signals, and to identify potentially hazardous situations with your process equipment. They utilize a rugged, heavy-duty design and are built to last.

Product Detail

The Ramsey Belt Misalignment Switch is used to monitor the position and tracking of conveyor belts. It is mounted on the conveyor structure and adjusted so the roller arm is the proper distance and angle from the outside edge of the belt. When a belt drifts out of alignment it contacts the roller actuator arm which rotates the actuation shaft, causing the belt misalignment switch to send an alarm signal.
The Ramsey Safety Cable Pull Switch is used as an emergency shutdown device for conveyors or other equipment. They meet OSHA and MSHA requirements for safety shutdown devices.
Safety pull cables are attached to the actuating arm of the switch. When force is applied to the pull cable it rotates the actuating arm and actuating shaft. At a 20° rotation the switch enters a tripped and locked position. The actuating shaft has two cams inside the housing. Each cam simultaneously actuates an independent SPDT micro-switch for shutdown and alarm signals.
The Ramsey Tripper Position Switch is a heavy duty limit switch. It is often used to indicate the position of a tripper on a conveyor with multiple discharge points. However, it can be used anywhere you need an extremely heavy duty limit switch with physical activation.

INVERTER

INVERTER

Whatever the output power range (from 500Va to 225kVA) and whatever your DC input voltage (24Vdc, 48Vdc, 60Vdc, 110Vdc, 220Vdc), 

Specific Technical Caracteristics

Nominal output power / current	nx2500VA / nx10,9A (n = number of modules)
Nominal DC input current  per Module (at 40Vdc)	nx56A
Max DC input current  per Module (15s at 40Vdc)	nx84A
Efficiency in EPC mode (AC to AC)	96%
Efficency DC/AC on battery	91%
AC input range	150VAC – 265VAC
Operating T°	-20°C / +50°C (derating up to 65°C)
Supervision	T2S controller as standard

Products Supplied

Meter Test Equipment SH2003 "MTE"

Pump IP Phosphate  "PROMINENT"

MCB " ABB"

Industion Motor "ORIENTAL"

Inverter TSI 100VDC-230VAC, 2500VA BRAVO
Speed Reducer "MAKISHINKO"
Rotary Connector "MERCOTAC"
Flow Control " WEBER SENSOR"
Tooth Shaft "PUJOL  MUNTALA"
Nissei Geared Motor, Nissei
Inverter ST 3000VA - 110 VDC - 230 VAC  " ARCON"
Safety Pulley M/R No. 106/MEE  "RAMSEY"
Worm Gear "YUEMA" - NMRV050
Induction Motor "BALDOR"
Friction Blower "NISHIMURA"
Air Cylinder, Valve "CKD"
Slead Bearing "IKO"
Rubber Expansion joint  "STENFLEX"
DC MOTOR "DKM"
Filter PN WK 842/2
Bucket CAT 330 B LME 7Y-7569
Limit Switch Type 3SE2 "SIEMENS"
Capacitor AC MPPF 562.550V.3% CAN Lincoln
Speed Controller "KURODA"
Kran Shaft STd Korea, Jepang
Oil Pimp Assy P/N 6880125
Valve Body P/N. 6776682
Filter Mann W 1160
Filter Donaldson P181137
Filter Sakura A-5311
Inverter Fuji 03-AUG-2010 "FUJI"
Filter Tank S-800 For 50 MM
Emergency Fuji AR30V2R
Clucth Model SPO-15 "SHINKO"
Oil Moresco MC 2000 "NEOVAC"

TESTO

 TESTO

Testo products such as :
# Digital Thermometers    # Humidity &amp
# Temperature                  # Air Flow &amp
# Velocity Panel Meters  # Tachometers
# pH Meters,                    # Infra Red Thermometers
# Data Storage Systems   # Digital Temperature Controller &amp
# Indicators                      # Sound Level Meters
#  Lux Meters                   # Stroboscopes,
# Anemometers                 # Electronic Thermometers,  etc.

CONTROL VALVE

Control valve adalah kran buat ngatur, ngatur apa? Ngatur kondisi operasi seperti temperature, pressure, flow dan liquid level, caranya? Caranya buka atau tutup atau buka sebagian flow sesuai dengan sinyal yg diterima dr controller. Jadi si controller ini punya data setpoint (nilainya diukur oleh sensor yg memonitor perubahan kondisi) yg bakalan dibandingin sama variable process yg diinginkan (nilainya ditentukan oleh operator).

Jadi let’s say fungsi control valve:

1. merupakan final control element
2. untuk throttling (memberikan bukaan yg presisi dg sinyal manipulated variable).

Bagian control valve :

- Actuator : bagian yg ngebuka si tutup valve (ini yg mudah dilihat secara fisik dilapangan, letaknya dibagian atas valve, besar dan khas).

Actuator ini ada yg digerakkan scr

1. pneumatic (pake air comp), pake udara bertekanan gitu buat ngebuka si tutup valve ini.
2. elektrik-hydraulic (pake listrik), atau bs jg manual. Misal MOV (baca: motor operated valve) itu hubungannya sama electrical actuator. MOV itu valve yang dilengkapi dengan electrical motor dengan system reduction gear. Jadi electrical sinyal dari DCS menggerakkan gear dalam eletric motor untuk membuka atau menutup valve. Atau solenoide valve misalnya dia biasanya pake electrical actuator, tapi tidak pake motor. Dia pake spring yang digerakkan oleh gaya electromagnetic dari solenoide yang mengelilingi spring tersebut. Biasanya juga solenoide valve itu untuk flow atau press valve yang berfungsi juga sebagai shut down valve.

- Valve/valve body assembly: komponen mekanis yg menentukan besarnya flow ke proses karena fungsi control valve buat throttling, maka valve yg dipake adalah valve tipe throttling (globe, butterfly, diaphragm, camflex, dsb) untuk high pressure application biasanya dilengkapi dg positioner untuk menghilangkan gejala hysteresis (perbedaan bukaan valve dg manipulated variable), misalnya angel body (u/ flashing).

Pemilihan valve itu tergantung berdasarkan jenis, kalo yg biasa di oil/power plant pake high pressure globe valve, kalo liq korosif pake diaphragm, yg jelas pemilihan didasarkan pressure drop, viscous, korosif, slurry/bukan, dsb tinggal baca aja tipe2 valve dan kegunaannya. Misalnya seperti td yg udah disebutin, angel body buat flashing dan high pressure, butterfly buat high flowrate dan low pressure drop. Gate/ball valve jarang digunakan untuk control valve karena hanya bs close dan open, so biasanya dipake buat yg quick opening.

- Pneumatic vs. Hydraulics. Pneumatic menggunakan udara yg compressible, sedang hydraulic menggunakan air/oil yg incompressible. Sebagian besar industri menggunakan pneumatic dg pressure 500-700 kPa. Hydraulic biasanya menggunakan 7-35 MPa tp untuk penggunaan tertentu bs smp 70MPa.

Manfaat pneumatic

1. fluida yg digunakan bs sgt ringan dan shg supply hosesnya gak berat2 bgt.
2. Krn fluida yg digunakan biasanya hanya udara, tidak perlu pipa return untuk fluida yg digunakan dan bocor (bila ada bocor) jd tidak messy.

Manfaat Hydraulic

1. densitas energy lebih tinggi krn pressure yg digunakan jg biasanya lebih tinggi.
2. fluida yg digunakan bisasanya incompressible, untuk mendapatkan spring action minimum. Ketika fluida hidrolic yg mengalir distop gerakan aliran yg paling kecil sekalipun akan melepaskan pressure ke aliran sehingga tidak perlu melepaskan pressurized air untuk merelease tekanan load.

buat sizing control valve biasanya yg ngerjain si orang instrument/control system, tp sebagai orang process, kita yg ngasih data2 dan kita juga yg tahu sampai batas mana/bagaimana control valve yg kita inginkan… konfigurasinya dan segala segala… jadi tetep juga kita kudu tahu tetek teteknya juga… gigigig

STENFLEX - Rubber Expansion Joints

Long service life guaranteeing high operational reliability

STENFLEX rubber expansion joints impress with their compensating and damping material properties. Excessive force, arising within the pipeline, is deflected by STENFLEX rubber expansion joints before this can be passed on to adjacent components.

Our expertise, in designing and constructing rubber expansion joints, is reflected in their long service life and high operational reliability. This explains why most European nuclear power plants are equipped with STENFLEX expansion joints.

STENFLEX pipe connections are made of high-quality rubber. They are used in industrial environments and in plant and process engineering, as well as in mechanical engineering, in the production of motors and the construction of industrial equipment, and even in shipbuilding. They have also found their way into building services engineering, environmental engineering and hydraulics.

What STENFLEX rubber expansion joints do:

• Damp oscillation, noise and vibration
• Compensate motion
• Compensate expansion caused by differences in temperature
• Reduce tension
• Compensate ground and foundation settling
• Compensate imprecise assembly
• Serve as assembly and disassembly aids
• Provide an elastic wall seal for penetration assemblies
• Compensate pipeline movements aboard ships