|
| |
Kerotest Hermetic Bellows Stem Seal
Application
| Any Application where
emissions to the environment must be eliminated including, but not
limited to: |
|
Hazardous Fluids |
|
Expensive Gases |
|
Noxious Odors |
|
High Purity Gases |
|
High Vacuum Service |
|
Double Walled Systems |
|
Inaccessible Piping |
|
Carcinogens |
The Kerotest Manufacturing Corporation has
developed a method of eliminating the familiar valve stem leakage problem on 1/4
turn valves. This new product is the Hermetic Stem Seal Device. This device uses
a metal bellows around the stem instead of standard seals or packing.
The zero leakage feature greatly reduces valve
maintenance eliminating the need for costly repair parts, and labor and
additional repair to the nearby equipment and machinery that is damaged by the
leak. More importantly, process and plant downtime is reduced and the safety
problems associated with leakage and maintenance on critical service components
are eliminated.
The Hermetic Stem Seal Device is easily adapted to
most rotating, nonrising stem valves (including plug, ball and butterfly) and
can be used in 360 degree or quarter turn applications.
When this unique device is adapted to a ball valve
the final result is:
Specifications: Standard Design
| Item |
Part |
Material |
|
1 |
Bonnet |
SS, ASTM A351,GR CF8M |
|
2 |
Cover |
SS, ASTM A351, GR, CF8 |
|
3 |
Stem |
SS, Teflon Covered, ASTM A564,
GR 630 |
|
4 |
Bellows Assembly |
SS, ASTM A240 Type 316 |
|
5 |
Handle |
SS, ASTM A276 Type 316 |
|
6 |
Bearing |
10% Glass Filled PTFE |
|
7 |
Bearing |
10% Glass Filled PTFE |
|
8 |
Bearing |
10% Glass Filled PTFE |
|
9 |
Bearing |
10% Glass Filled PTFE |
|
10 |
O-Ring |
Viton |
|
11 |
O-Ring |
Viton |
|
12 |
O-Ring |
Viton |
|
13 |
Gasket |
10% Glass Filled PTFE |
|
14 |
Hex Head Cap Screw |
Alloy Steel, ASTM A193 Grade B7 |
|
15 |
Hex Head Machine Screw |
SS, Type 304 |
|
16 |
Set Screw |
18-8 SS |
|
17 |
Housing |
SS, ASTM A351, GR, CF8M |
|
Parts exposed
to the live fluid, excluding O-Rings, are the Bonnet(1), Stem(3) and
Bellows Assembly(4). Optional materials are as follows: |
|
Optional Material
|
Inconel |
Monel |
|
Bonnet |
Inconel 625 |
Monel 400 |
|
Stem |
Inconel 625 |
K-Monel |
|
Bellows |
Inconel 625 |
Monel 400 |
| Kerotest's HSS is currently installed on 1/4 turn Top
Entry Ball Valves |
|
Sizes: 1/2", 3/4", 1", 2",
3", 4" |
|
Pressure Classes: ANSI
classes 150#, 300# |
|
End Connections: Flanged
and Buttweld |
|
Valves are available in:
|
|
Carbon Steel:
ASTM A126 GR WCB Carbon
Steel Body with 316 Stainless Steel Ball and Seat Rings, PTFE Seat, Stem
Seal and Gasket. |
|
Stainless Steel:
316 Stainless Steel Body
with 316 Stainless Steel Ball and Seat Rings, PTFE Seat, Stem Seal and
Gasket. |
| |
Ordering details
|
Call : Tom Ritchey at
412-521-7688 |
|
Pricing : per unit in US$ |
|
Shipment : F.O.B. Mansura, LA 71350,
USA |
|
Terms : Net 30 days |
|
Delivery : Typically 8 - 12 weeks
after receipt of order |
|
Prices Stainless Steel Bellows,Bonnet and Stems in the HSS device. |
|
1. Carbon Steel Valves, Flanged or Buttweld Ends
|
|
Size(in) |
ANSI Class 150# |
ANSI Class 300# |
|
.5 |
849 |
879 |
|
.75 |
849 |
879 |
|
1 |
849 |
879 |
|
2 |
999 |
1099 |
|
3 |
2899 |
3199 |
|
4 |
2999 |
3299 |
|
2. Stainless Steel Valves, Flanged End(SST Body-CF8M) or
Buttweld Ends(SST Body-CF8M)
|
|
Size(in) |
ANSI Class 150# |
ANSI Class 300 # |
|
.5 |
899 |
999 |
|
.75 |
899 |
999 |
|
1 |
899 |
999 |
|
2 |
1399 |
1499 |
|
3 |
3699 |
3899 |
|
4 |
3999 |
4499 |
|
Prices with Inconel Bellows, Bonnet and Stems in the HSS
Device. |
|
1. Carbon Steel Valves, Flanged or Buttweld Ends
|
|
Size(in) |
ANSI Class 150# |
ANSI Class 300# |
|
.5 |
1499 |
1599 |
|
.75 |
1499 |
1599 |
|
1 |
1499 |
1599 |
|
2 |
1999 |
2099 |
|
3 |
4199 |
4399 |
|
4 |
4999 |
5499 |
|
2. Stainless Steel Valves, Flanged End(SST Body-CF8M) or
Buttweld Ends(SST Body-CF8M)
|
|
Size(in) |
ANSI Class 150# |
ANSI Class 300# |
|
.5 |
1699 |
1799 |
|
.75 |
1699 |
1799 |
|
1 |
1699 |
1799 |
|
2 |
2299 |
2499 |
|
3 |
4599 |
4999 |
|
4 |
5999 |
6499 |
|
Prices with Monel Bellows, Bonnet and Stems in HSS Device.
|
|
1. Carbon Steel Valves, Flanged or Buttweld Ends
|
|
Size(in) |
ANSI Class 150# |
ANSI Class 300# |
|
.5 |
1699 |
1799 |
|
.75 |
1699 |
1799 |
|
1 |
1699 |
1799 |
|
2 |
1999 |
2199 |
|
3 |
3899 |
3999 |
|
4 |
4899 |
4999 |
|
2. Stainless Steel Valves, Flanged End(SST Body-CF8M) or
Buttweld Ends(SST Body-CF8M)
|
|
Size(in) |
ANSI Class 150# |
ANSI Class 300# |
|
.5 |
1899 |
1999 |
|
.75 |
1899 |
1999 |
|
1 |
1899 |
1999 |
|
2 |
2399 |
2599 |
|
3 |
4199 |
4699 |
|
4 |
5599 |
5999 |
|
