Spring Energized Seals

Energized rod seals

Spring Energized Seals,custom and standard dimensions available. Jacket in PTFE compound, PEEK, UHMW-PE, PU 54Sh.D. Jackets and electro-welded springs are designed and realized within the company, so that HD has the complete control of the production process. Spring are available in Aisi302, Elgiloy, Hastelloy and NACE approved Inconel X750.
For the "V" shaped cross sections an optional EU-FDA approved Silicone filling is available.

OVERVIEW

 Spring enrgized seals for rod seling

Enerseal Omega112 rod - 112 icon
112
Enerseal 021 rod - 21 icon
021
Enerseal 29C rod - 29C icon
29C
Enerseal 65C rod - 65C icon
65C
Energized rod seals image

Housing
class

D
rod diameter*
E
groove
L
standard
L
heavy**
L
BK***
R S G
max diametral gap
  f7 H9 H12     Bar/20 100 200 400
GC 3 - 40 D + 2,9 2,4 3,8 5,3 0,3 2,5 0,20 0,10 0,08 0,05
LC 6 - 240 D + 4,5 3,6 4,65 6,2 0,4 2,5 0,25 0,15 0,10 0,07
HC 10 - 400 D + 6,2 4,8 5,7 7,7 0,6 3 0,35 0,20 0,15 0,08
NC 20 - 650 D + 9,4 7,1 8,5 10,8 0,8 5,5 0,50 0,25 0,20 0,10
MC 35 - 1200 D + 12,2 9,5 11,2 14,7 0,8 8,5 0,60 0,30 0,25 0,10
RC 150 - 1200 D + 18,75 13,4 15,8 20,5 0,8 8,5 0,80 0,30 0,25 0,10
* Any diameter within the range
** Always choose heavy (reinforced) heel when pressure exceeds 200 bar
*** Backup version for higer pressure and/or temperature.

 

Coding example
housing class NC
profile code 021
bore 100
materials: jacket Neuflon 020 spring Aisi 314
Enerseal NC - 021 - 100 - N-020 - 314
assembly

Spring energized seals are suitable for assembling in closed groove starting from a minimum rod diameter
according with dimensional class and spring's shape.
Assembling requires skill and can be more or less difficult according with the position of the groove.

FOR THESE REASONS THE OPEN GROOVE ASSEMBLING IS ALWAYS STRONGLY RECOMMENDED

 

Enerseal V

 

dimensional class

 

Minimum Rod diameter

 

 

GC

LC

HC

NC

MC

RC

30

70

110

300

500

800

     

Enerseal Omega

 

dimensional class

 

Minimum Rod diameter

 

GC

LC

HC

NC

MC

RC

30

70

110

230

400

600

 
Spring Energized Seals OMEGA profile:  ASSEMBLING IN CLOSED GROOVE
 
The assembling ram can be manufactured out of PA6 or POM
- Deform diametrically the seal and insert it in the hole
- Push the seal against the stop and let it partially snap in to the groove
- Gently pushing the ram, complete the insertion in to the groove
- Resize the seal inserting and rotating the calibrating tool

 

Spring Energized Seals can also be installed in SEMI-OPEN GROOVE

 

 

Housing
class
D
rod
F
groove
diameter
L
standard
L*
reinforced heel
E
step diameter
R S G
max clearence
  f7 H9 H12 H12     Bar/20 100 200 400
GC 3 - 20 D + 2.9 2.4 3.8 F - 0.8 0.3 2.5 0,20 0,10 0,08 0,05
LC 15 - 240 D + 4.5 3.6 4.65 F - 1.2 0.4 2.5 0,25 0,15 0,10 0,08
HC 25 - 400 D + 6.2 4.8 5.7 F - 1.4 0.6 3 0,35 0,20 0,15 0,08
NC 45 - 650 D + 9.4 7.1 8.5 F - 1.6 0.8 5.5 0,50 0,25 0,20 0,10
MC 80 - 1100 D + 12.2 9.5 11.2 F - 1.8 0.8 8.5 0,60 0,30 0,25 0,10
RC 150 - 1200 D + 18,75 13,4 15,8 F - 2,5 0,8 10 0,8 0,30 0,25 0,10
*Always choose reinforced heel when pressure exceeds 200 bar
finishes
SURFACE FINISH ACCORDING WITH FLUID
application max Ra µm
dynamic surface
max Ra µm
static surface
CRYOGENICS 0,1 0,2
FREON
HELIUM
HYDROGEN
0,2 0,3
AIR
NITROGEN
ARGON
METHANE
FUELS
0.2 0.4
WATER
OIL
0.3 - 04 0.6
ROTARY SEALS
 Shaft surface

Ra 0.2 - 0.3 micron max.
Rz 1.0 - 2.5 micron max.
R max. < 4 micron
Shaft hardness

55 HRC min. for pressure up to 5 bar
60 HRC min. for pressure > di 5 bar
60 HRC for speed > 4m/sec
Surface treating deep

0.3 mm min.
materials

Click compound's code to download the .PDF data sheet (login requested)

HD Slippers
code
Composition Color Approvals ΔT °C Description
N-009 Ptfe-oxides blue   -268 +260 All pourpose on soft surfaces
N-095 Tfm white FDA -268 +260 Low creep, better strength.
N-031 Ptfe-bronze green-blue   -268 +260 High wear resistance, hidraulic seals
N-032 Ptfe-carbon black   -268 +260 High wear resistance, pneumatic and hydraulic seals
N-197 Ptfe-carbographite black NORSOK -268 +260 High wear resistance, hydraulic and pneumatic seals
N-043 Ptfe-graphite black FDA -268 +260 High wear resistance, low friction coefficient.
N-060 Ptfe-glass fibre blue FDA -268 +260 All pourpose on hard surfaces
N-067 Ptfe-glass fibre white FDA
NORSOK
-268 +260 High wear and creep resistance
N-033 Ptfe-glass fibre MoS2 gray FDA -268 +260 Fit for hard surfaces
N-103 Ptfe-Carbon fibre black   -268 +260 Fit for hard surfaces
N-102 Ptfe-Liquid crystal polymer beige FDA - EU
-268 +260 Food & Pharma, fit for soft surfaces
N-088 Ptfe-polyimide yellow  

-268 +260

Fit for soft surfaces
N-074 PEHMW white FDA -140 +80 High wear and extrusion resistance
N-155 PVDF white FDA -30 +140 High modulus
P95-A252 Polyurethane blue FDA -50 +105 Extrusion and wear withstanding, low friction coefficient
P95-VI251 Polyurethane violet  FDA  -30 +115 CIP (clean in place) fluids compatible
P95-R198 Polyurethane red   -30 +125 Extrusion and wear withstanding, low friction coefficient, high temperatures
P95-AR255 Polyurethane orange   -30 +135 Extrusion and wear withstanding, low friction coefficient, higher temperatures
P95-G253 Polyurethane MoS gray   -30 +105 Extrusion and wear withstanding, lower friction coefficient

 

CHOOSING Neuflon-ptfe compound ACCORDING WITH FLUID AND SURFACE
  SURFACES
  Steel HEC>=30-45
Temp. Mart. Inox Steel
Cast Iron HRB<=200
Steel HRC>=45
Cast Iron HRB>200
Galvanic or chemical surfacing HV>=700
Chromium Bronze
Bronze
Brass
Treated Aluminium Aust. Inox Steel
Glass
FLUIDS NEUFLON-ptfe compounds (standard in bold)
Hydraulic oil
Transmission oil
Fire resistant syntetic hydraulic oil
N-031
N-032 N-060 P95-A112
N-031
N-032 N-060 P95-A112
N-009
N-043 N-032 P95-A112
N-032 N-074 P95-A112 N-009
N-032 N-074 P95-A112
Water and oil/water emulsions N-032
N-060 N-074
N-032
N-060 N-074
N-009
N-043 N-074
N-032
N-074
N-009
N-032 N-074
Drugs and food N-074
N-102 N-043 N-060 N-095 P95-B113
N-009
N-074 P95-B113
N-102
N-009 P95-B113
N-009
N-074 P95-B113
N-009
N-074 P95-B113
Air N-032
N-031 N-043 N-074 P95-A112
N-032
N-043 P95-A112
N-032
N-009 N-043 N-074 P95-A112
N-032
N-074 P95-A112
N-032
N-009 N-043 N-074 P95-A112
Steam N-032
N-043
N-032 N-009
N-032 N-043
  N-032
N-009 N-043
Acids and Bases N-032
N-074
N-032
N-043 N-074
    N-009
N-032 N-043 N-074
availability
  • To check the availability:
    -choose profile and compound from the drop-down menu
    -input the desired housing class
    -input the desired diameter
  • Once obtained the availability, a request for quotation can be sent.

Availability