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Vee Packing | KC Seals

Movement

kc seals reciprocating
Reciprocating

kc seals static
Static

Duty

High Pressure

Action

Single

Description:

Vee-packing sets are a stack of multiple sealing rings (Middle rings), support ring (Top adapter), and a pressure energizing ring (Bottom adapter).  In the packing set the energizing axial force is transferred between the individual packing rings so that each ring is pressed into positive contact with the rod surface. This axial preload works through the top adapter on the pressure side, exerting a hinging action on the vee’s, forcing the sealing lip apart to ensure a low pressure seal.

With the many options available for materials and sizes, as well as numbered amount of Vee’s, Vee packing sets can handle a wide range of temperature and pressure variations. 

Features:
  • Adjustable
  • Very robust
  • Adaptability
  • High strength
  • Wide range of sizes and materials
Applications:
  • Downhole tools
  • Stabilizer cylinders
  • Otis and baker tools
  • Ship hydraulics
  • Presses
  • Medium pressure application
Technical Data

Middle Ring Materials:

MolyGlass Filled PTFE/Unfilled PTFE/PPS/Nitrile Kevlar

Material Code:

1015/1001/7010/0155

Top and Bottom Adapter Materials:

Material:

PEEK/Nylon/Carbon Graphite PTFE/Molyglass PTFE

Material Code:

5001/3001/0120/1015

Temperature:

-200°C to +260°C

-328°F to +500°F

Speed:

5 ft/s

Pressure:

10,000 psi

Media:

Chemical compatibility chart

Note: All parameters can vary depending on the specific application, please take the above information as a general guideline. Should you have any concerns please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it.

Hardware Design Guidelines & Part Numbers

Radial clearances: inch"

         
Pressure 2000 PSI 5000 PSI 7500 PSI 10000 PSI
Max Diametrical Gap 0.032" 0.015" 0.012" 0.009"

Note: Max Diametrical Gap can vary depending on what material is chosen, as well as the temperature and media of the application. Please contact our sales department for more info This email address is being protected from spambots. You need JavaScript enabled to view it.

Surface finish: µinch

Roughness Depth Mating Surface Groove Surface
Rmax 25-100 <625
RzDin 16-63 <400
Ra 2-8 <63
 Vee Packing Individual V-Rings & Adapters
VEE-RING STACK HEIGHTS WITH MIDDLE, TOP, AND BOTTOM ADAPTERS 
Mid Piece Number Packing Cross Section
3/16 1/4 5/16 3/8 7/16 1/2
3 0.630 0.750 0.875 1.000 1.081 1.250
4 0.740 0.875 1.031 1.188 1.300 1.500
5 0.850 1.000 1.187 1.375 1.517 1.750
6 0.960 1.125 1.344 1.562 1.735 2.000

Recommended Number of V-ring Per Set (Solid Uncut Rings)

Rubber Application Pressure(PSI) Fabric Reinforced Application Pressure(PSI) Number Required
500 to 1,000 500 to 1500 3
1000 to 1200 1,500 to 3,000 4
2000 to 3000 3,000 to 5,000 5
3000 to 5000 5,000 to 10,000 6
5000 over 10,000 and over 7

Because of the wide variety of materials, numbered sets, and application parameters. Vee-Packing sets can be utilized in many different housing dimensions. Please contact KC Seals for info regarding housing dimensions