Valve Variseal Spring Energized Lip Seal
Product descriptions :
The Spring Energized PTFE Seal is a spring- energized, pressure-assisted sealing device consisting of a PTFE (or other polymer) seal partially encapsulating a corrosion-resistant metal spring energizer.
The PTFE jackets are precisely machined, filled with PTFE composites and other high performance polymers, function at temperatures ranging from cryogenic to 250 C and inert to almost all chemicals. Some types also can be used in sanitary environment.
Material
PTFE filled with bronze(glass,graphite,carbon,etc.)
Application Example
Radial Seals in Static Service.
Radial Seals in Reciprocating Motion.
Radial Seals in Rotary Motion.
Inside face Seals in Static and rotary Service.
Outside face Seals in Static and rotary Service.
Spring type:
U shaped spring
Round wire spring
O shaped spring
Size
Both imperial and metric sizes are available on all stype.
| Material Code |
Compound Features & Recommended Service |
Chemical |
Wear |
| 10 |
Virgin PTFE, premium grade, excellent material for gases and cryogenic applications, excellent chemical resistance, FDA approved, API 6A qualified |
E |
P |
| 9 |
Modified PTFE, improved creep and extrusion resistance, excellent for static applications, low gas per_x005f_x005f_x005f_x005f_x005f_x005f_x005f_x0002_meability, good cryogenic properties, moderate to high vacuum service, FDA approved, API 6A qualified |
E |
F |
| 16 |
Fiber Glass/Moly filled, excellent wear and creep resistance, good abrasion resistance for sealing non_x005f_x0002_lubricated media, good extrusion resistance, highly wear resistant blend, API 6A qualified |
E |
E |
| 15 |
Carbon/Graphite filled, suitable for dynamic sealing of steam and water as well as poorly lubricated, recommended for dry or insufficiently lubricated applications, API 6A qualified |
E |
E |
| 21 |
Graphite filled, very low coefficient of friction, good for water service, excellent for dry or poorly lubricated applications, API 6A qualified |
E |
F |
| 6 |
Carbon Fiber filled, excellent wear and creep resistance, good electrical conductivity, good in water service, API 6A qualified |
E |
E |
| 80 |
Mineral filled, used for sealing food products, good wear properties for both rotary and linear applications, FDA compliant material for sanitary food and pharmaceutical processing |
G |
G |
| 88 |
Ekonol filled, good wear resistance but is not abrasive against non-hardened surfaces, should not be used in steam applications, best in dynamic applications running against soft metals |
G |
G |
| 35 |
Stainless Steel filled, excellent material for steam service, good compression strength proportion along with better chemical resistance than bronze filled PTFE |
F |
G |
| 1 |
Bronze filled, suited for high speed dynamic sealing of lubricating media, should not be used for chemical service |
P |
E |
| 2 |
Polyimide filled, excellent wear resistance but not abrasive against non-hardened surfaces, should not be used in steam applications |
G |
E |
| 24 |
Virgin PEEK, high strength material predominately used for anti-extrusion devices, such as back-up ring and support rings |
G |
G |
| 23 |
Carbon Fiber filled PEEK, improved high temp properties, extremely rigid, high strength material used for back-up rings, guide rings, and support rings, API 6A qualified |
G |
G |
| 22 |
PTFE filled PEEK, lower coefficient of friction than virgin PEEK, excellent high heat and wear resistance, chemically resistant to aggressive environments |
G |
E |
| 26 |
UHMW, best material for reciprocating service in water or water based fluids, typically used for sealing food products, paints, adhesives , excellent wear and abrasion resistance |
G |
E |
| 101 |
ETFE, melt processible fluoropolymer with good impact, abrasion and wear resistance, used in applica_x005f_x005f_x005f_x005f_x005f_x005f_x005f_x0002_tions where gamma radiation resistance is required, superior to nuclear radiation |
F |
E |
| E - excellent, G - good, F - fair, P - poor |
| Material Code |
Name |
Description |
| A |
301 Stainless Steel |
Good corrosion resistance for general applications |
| B |
Inconel 718 |
For extreme temperatures. Good resilience and tensile properties. |
| C |
Elgiloy |
The most resilient spring. Excellent chemical compatibility and corrosion resistance.Meets N.A.C.E. MR-01-75 |
| D |
Hastelloy C-276 |
High nickel content for maximum corrosion resistance. Meets N.A.GE. MR-01-75 |
| E |
304 Stainless Steel |
Meets N.A.C.E. MR-01-75. Good for general applications requiring corrosion
resistance and non-magnetic characteristics |
| F |
17-7 PH Stainless Steel |
Good for cryogenic applications. Used in many military-aerospace requirements. |
| G |
316 Stainless Steel |
A good corrosion resistant alloy for applications requiring higher chemical compatibility |
| H |
302 Stainless Steel |
Typical non-magnetic 300 series stainless steel |
Dongguan Walle Sealing Technology Development Co., Ltd. has been manufacturing sealing products for more than 20 years. Walle is one of China leading manufacturers which specializing in producing seals products, including PTFE seals, O-rings, X-rings, U-rings, Y-rings, D-rings, oil seals, piston seals, rod seals, wipers seals, wear rings, symmetric seals, stainless steel seals, Variseal, step seals, guide rings, rotary seals, rotary glad rings, rotary spring, gaskets, bonded seals, large size of non-standard seals and customized part.
Our products are well known for fine quality, and the quality is very appreciated by users abroad. As a high-performance seals maker, Walle has been successful in exporting its product to Europe, America and Southeast Asia etc. In recent years, Walle has developed rapidly due to its high quality product control and on-time delivery service, and we will continue this tradition to meet the customer's technical and economic demands by adopting zero defects management, strict production quality control, and continuous improving in production.
With practical and profound engineering experience, Walle is dedicated to provide customers worldwide with superior seals and the sealing solutions to modern industries like electronics, electrical power, petroleum, chemical industry, pneumatic, hydraulic, shipping, food, textile, electrical, forklift, aeronautics and aerospace and other mechanical equipments etc.
We will be glad to offer a quotation to you upon receipt of your enquiry. Welcome to place orders, we sincerely hope to do business with you!
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