Micro Control Valves

SGE's microcontrol valves provide precision metering and on-off control of gas flows.  They are designed specifically for chromatography applications and may be used at elevated temperatures from high vacuum to medium pressure.

The valves are vacuum rated to a leak rate of 1 x 10-5 cc/sec of Helium except for BMCV and SMOV, which are not tested for this application.

For on/off control or metering of a single gas stream, choose an "L" configuration, i.e. MCV; BMCV; SMOV; or MOVP.

If the application requires diversion or splitting from the main stream of gas to another column or detector and so on, choose a "T" configuration, i.e. MOVT; MOVPT; or MCVT.

NOTE: In all valves of the "T" configuration, flow through the cross arms continues whether the valve is "open" or "closed".  Metering only occurs on the vertical arm.  The relative flows between the side arm and the vertical arm when the valve is opened will depend on the relative restriction in the flow lines downstream of the valve.

     

  • Minimal exposure to stainless steel

  • Fully swept flow path 

  • Replaceable graphitized Vespel® seat

  • Range of stem lengths where appropriate

  • Easy installation

  • Maintenance instructions, spare seals and seats are provided with each unit

  • Minimal dead volume

       

 

           
Micro Control Valve (MCV) - Manual Operation          

High performance flow control valves MCV and MCVT valves have a fine tapered needle to give precision control through a wide flow range to complete shut off.

Ten turns provide control from fully open to complete shut off.

         Part No. 1236012
           

Part no. Description Stem
Length		 Connection Temp
Rating		 Vacuum
Rated		 Pressure
Rating		 Flow Rate Valve Code
1236012L Single Outlet50mm 1/16" 300°C Yes 700psi 0-2000mL/min MCV
1236020L Single Outlet100mm 1/16" 300°C Yes 700psi 0-2000mL/min MCV
1236032T Dual Outlet50mm 1/16" 300°C Yes 700psi 0-2000mL/min MCVT

 

           
           
Brass Micro Control Valve (BMCV) - Manual Operation          

The BMCV mini-valves are ideal for on-line microcontrol such as septum purge and non precision flow control. The valve accepts 1/16" OD flow lines.

The BMCV-1 can provide smooth flow metering up to 2 litre/min.

The BMCV-A is similar to the BMCV-1 but the finer taper allows for smooth control in the range from 0-250 mL/min.

         Part No. 1236282

Part no. Description Connection Temp
Rating		 Vacuum
Rated		 Pressure
Rating		 Flow Rate Valve Code
1236281L Single Outlet1/16" 100°C No 700psi 0-200mL/min BMCV-A
1236282L Single Outlet1/16" 100°C No 700psi 0-2000mL/min BMCV-1

 

           
Stainless Steel Manual On/Off Valve (MOV) - Manual Operation          

The SMOV compact stainless steel on/off valve is ideal for use as an isolation/shut off valve.

          

High performance on/off valves MOV and MOVT valves provide a quick and positive on/off response under high vacuum or pressure. Suitable for solvent dumping.  1/16" OD flow lines or fused silica lines can be used.

         Part No. 1236283

Part no. Description Connection Temp
Rating		 Vacuum
Rated		 Pressure
Rating		 Flow Rate Valve Code
1236283L Single Outlet1/16" 100°C No 700psi n/a SMOV

Part no. Description Stem
Length		 Connection Temp
Rating		 Vacuum
Rated		 Pressure
Rating		 Flow Rate Valve Code
1236071T Dual Outlet50mm 1/16" 300°C Yes 500psi n/a MOVT

 

           
On/Off valve  (MOVP) - Pneumatic Operation           

The MOVP and MOVPT valves have a similar design to the MOV and MOVT except the on/off function is actuated pneumatically.

They can be actuated remotely with a toggle switch or solenoid valve, and a 50-55 psi air supply.

         Part No. 1236103

Part no. Description Stem
Length		 Connection Temp
Rating		 Vacuum
Rated		 Pressure
Rating		 Flow Rate Valve Code
1236091L Single Outlet50mm 1/16" 300°C Yes 700psi n/a MOVP
1236103T Dual Outlet50mm 1/16" 300°C Yes 700psi n/a MOVPT
1236104T Dual Outlet100mm 1/16" 300°C Yes 700psi n/a MOVPT(L)

 

Part no. Description Connection
1034606Adaptor Kit for connecting fused silica capillaries to SGE Micro Valves1/16"

 

Re-order part numbers for replacement parts for Micro Control Valves

Part no. Description Pack Size
1236101Seal-seat removal tool
123687PTFE MV Seals2
123681VSV-6 Vespel Valve Seat5
123683PEEK Valve seat for SMOV valves5
072603GFF16-16 Graphite Ferrules10
072657GVF16-16 Vespel Ferrules10
072650PSR16-16 PTFE Sealing Rings20