Product reliability and performance are directly related to quality and a major concern of any customer who must have the assurance they are receiving products as designed, with a material and quality level that meets or exceeds their requirements.
Flangeless: Class 150/300: Flow-Tek Internal Standard Class 600: ANSI/ISA 75.08.02 Flanged: Class 150/300: ANSI/ISA 75.08.02 (ISA S75.04) / IEC 60534-3-2 Class 600: ANSI/ISA 75.08.02
FLANGES:
ASME B16.5
SEAT TIGHTNESS:
Metal Seat: Class IV per IEC 60534-4 /ANSI/ FCI 70-2 Soft Seat: Class VI per IEC 60534-4 / ANSI / FCI 70-2
TEMPERATURE RANGE:
-40°C to +260°C ( -40°F to +500°F)
PRESSURE RATINGS:
Class 150/300/600
DETAIL
Flow-Tek Series 19 is a versatile Segmented Ball Valve designed for throttling or on-off applications in various industries including pulp & paper, chemical, power, oil & gas, and mining.
The valve features a characterized ball segment for high rangeability with splined stem connection for precise control, maintenance friendly segment-stem assembly, low friction shaft and thrust bearings for longer life, integral actuator mounting pads, and interchangeable seats.
VALVE BODY
One piece body design which offers greater rigidity against fluctuating pipe loads.
Eliminates the leak path associated with two piece body designs.
Available in Flangeless and Flanged Ends.
BALL SEGMENT
Carefully designed with characterized V-port to offer rangeability in excess of 300:1, ideal for throttling applications in high consistency pulp services or slurry applications.
Perfectly ground spherical surface with rounded edges ensure lower operating torques for metal seated valves.
Hard coated spherical surface prevents galling.
The segment is carefully designed for optimum flow.
The seat is supported during higher openings to prevent rocking motion and possible failure of the valve.
BALL – STEM CONNECTION SEAT
Close-fit splined connection between stem and the segment offers extra strength with no lost motion or dead band.
Perfectly oriented, specially designed shaft pin facilitates self-alignment of the ball segment while simplifying the assembly and disassembly during routine maintenance.
SEAT
Available with a metal seat and soft seat.
Directs the flow away from the sealing area.
Pressure energized seat design offers excellent sealing even at very low differential pressures.
Self-aligning seat is independent of external pipe loads and offers excellent sealing even in adverse conditions.
Standard metal seat has hard-faced seat surface with Stellite overlay on 316 SS base material.
Standard soft seat design uses Tek-Fil® to maintain exceptional chemical and heat resistance.
Flow-Teks’ Tek-Fil® provides higher compressive strength, lower co-efficient of friction, superior abrasion and wear resistance, lower permeability, lower porosity, and reduced cold flow.
BEARINGS
Stem and end post bearings are low friction and maintenance free.
Made of wear resistant PTFE compound supported by metal fabric or thick walled metal depending on the pressure drop.
Additional thrust bearing on stem collar for high pressure applications eliminates unbalanced axial load for consistent high performance and precision control.
Document
Type
Download
Series 19 Sales Brochure
PDF
Series 19 O&M Manual
PDF
Technical Bulletins
Type
Download
1003 – Series 92/93 – Pneumatic Actuator Engineering Data
PDF
1005 - Actuator Selection Guide
PDF
1011 - Model Number Selection Guide
PDF
1013 - S19 Segmented Ball Valve: Pressure & Temperature Charts