1. Line Blinding/Blanking Options
Increase Safety,
Save Time, Costs and Increase Efficiency

2. Flow and Control Engineering
Supplying Control Valves & Instrumentation to Heavy Industry and Chemical Manufacturing. Multi-Stage Steam & Condensate Control Valves Slide Blind Valves Metal Bellow Sealed Valves Manual & Automated Ball Valves Butterfly & Knife Gate Valves Industrial Heat Exchangers Industrial Vent Silencers Opacity Monitoring EPA Series 60 Compliant

3. Line Blanking or Blinding
Stop a process flow by placing an obstruction in the line. Prevents release of combustible and toxic materials, vapors or gasses into the work area.
When do we Blank or Blind?
Confined Space or Vessel Entry
Process Control
Commissioning or Startup
Maintenance
Repairs
Welding
Extended Shutdown

4. Blanking/Blinding(the 1980s Way)
Pipe Size
Personnel Needed
Hours
Tools
½”-14”
2-4
1-4
Gaskets, Nuts Bolts, Tools, Hoisting Apparatus
16”-60”
4-10
1-12
Gaskets, Nuts Bolts, Tools,
Hoisting Apparatus

5. It’s a New Century - Blanking/Blinding With a Line Blind Valve
Pipe Size
Personnel Needed
Hours
Tools
½”-60” 1
20 seconds to 5 minutes

6. Absolute Shutoff
Quick Change
One Operator
No Line Spread
Cost Saving
No Tools
Safe
Simple Structure

8. The above small video shows the operation of a industrial grade slide blind. Please contact our office at for application assistance and general overall questions.
Click to Play Video

9. Plant Safety Training for operation recommended for all industrial products. Contact our office at for details.

11. Parts and Warranty Standard Maintenance is gasket replacement.
All gaskets can be replaced at site
Replacement period of seal ring can be different
by gasket kind and working conditions

12. Safety Features Part Description Double Lock System
Handle is secured by SS chain and locked in double so it’s safe even by extreme vibration
Optional Double Sealing
When first O-ring is damaged, second O-ring keep safe (prevent leakage) and as standard dimension it can be easily purchased anywhere in the world

13. Options Bleeder connection Automation
This bleeder is able to drain out fluid remaining in the line before operation
Automation
Remote control is available with automated operation like other conventional control valves.

14. Extensive Testing ※Fire Safety Test ※ Stress Distribution
→Sliding type, NPS 24, ASME Class 300, Carbon Steel body Valve, part coupled thermal-structural F.E.
Analysis (ABAQUS Ver. 6.8-EF1)
ISO
View
20℃
30℃
40℃
50℃
60℃
70℃
80℃
90℃
100℃
※ Stress Distribution
※Fire Safety Test

15. Specifications ▲ ASTM Specification ▲ ASME Specification
- ASTM F : Standard specification for Blind valve for Marine Application
▲ ASME Specification
- ASME Sec.Ⅱ : Materials
- ASME Sec. Ⅷ Div.Ⅰ: Rules for Construction of Pressure Vessels
- ASME Sec. Ⅸ : Qualification Standard for Welding and Brazing Procedures,
Welders, Brazers, and Welding and Brazing Operators
- ASME B16.5 : Pipe Flanges and Flanged Fittings
- ASME B16.34 : Standard for valves-Flanges, Threaded and Welding end
- ASME B : Face-to-Face and End-to-End Dimensions of Valves
- ASME B 31.1 : Power Piping
- ASME B 31.3 : Process Piping
▲ API Specification
- API Spec. Q1 : Specification for Quality Program for the Petroleum and Natural Gas Industry
- API Spec. 5L : Specification for Line Pipe
- API Spec. 605 : Larger-Diameter Carbon Steel Flange
- API 598 : Valve Inspection and Test
- API 607 : Fire Test for Soft-Seated Quarter Turn Valves.
- API 590 : Steel Line Blanks

16. Warranty & Maintenance
Only Gasket replacement is needed for maintenance
All gasket can be replaced at site
Replacement period of seal ring can be different
by gasket kind and working conditions
▶Flow and Control Engineering warrants for 3 years, Except for Elastomer Sealing Materials

17. Line Blinds in use Reference Pictures
36” compact type blind for isolation
Ethylene(-104deg.C) line at
Loading Arm

18. Line Blinds in use Ethane line of cracking heater for Ethylene plant
Product carrier tank isolation
(On board ship)

19. Line Blinds in use Reference Pictures
Cooler isolation for fast chemical cleaning without stopping of the process
A loading arm construction

22. Need More Information? Visit our Website at www.flowandcontrol.com