BP-LF550/6900 pages
BP-LF690 SERIES
‘Low Flow’ Back Pressure Regulator for liquid or gas applications
Piston Sensed for inlet control to 690bar / 10000psi
The BP-LF690 is a back pressure regulator for gas or
liquid applications suited for typical low flow applications
to 10lpm (liquid), this accurate regulator controls inlet
pressure and vents excess pressure back via the threaded
¼” NPT outlet port.
FEATURES:
• 690bar/10,000psi inlet pressure
• Metal to metal seating for liquid and PEEK
seating for Gas
• Precision machined sensing elements
• 3 Sensor ranges for combination of low torque
and high sensitivity
• Captured outlet port
• Optional 316SS Panel mounting ring
APPLICATIONS:
Chemical injection systems
Valve test rigs
Liquid sampling
Supercritical liquid
STANDARD MATERIALS OF CONSTRUCTION
Regulator part
Body
Bonnet
Main valve
Seat
Valve spring
Sensor and Holder
Handwheel
Baffle Plate
Spring rests
‘O’ ring seals
Adjusting screw
Loading Spring
Lubricant
Material
316SS
316SS
Alloy 718
Liquid: 17-4PH SS
Gas: PEEK
302SS
316SS
Nylon
316SS
316SS
NBR, Viton or EPDM
Ali Bronze
Spring Steel
Krytox GPL 205
Pressure Tech reserve the right to amend dimensions and product detail as part of our commitment to achieve product realisation. Product selection is based on compatibility information and any prior
user experience. Unless otherwise and specifically agreed, Pressure Tech cannot guarantee the suitability of product on individual applications, and this remains the users responsibility.
// pg 1 of 2
PRESSURE TECH LTD, Unit 3, Rossington Place, Hadfield, Glossop, Derbyshire SK13 1QG
Tel: +44 (0)1457 899307 Fax: +44 (0)1457 899308
e-mail: info@pressure-tech.com
www.pressure-tech.com
Designed and built in the UK