PTFE Sealing for The Oil & Gas Industry

Product Description

 

Product Description

PTFE and elastomeric spring energized seals For Valve

SPT SEALS COMPANY manufactures PTFE and elastomeric spring energized seals and sealing systems. Spring Energized Seals can be used in static, reciprocating and slow to medium rotary applications. Unli`ke many other seals where you must size your seal application around standard size seals, Spring energized seal can be manufactured to your product. While standard size seals are something we make everyday, we make seals in any size needed. Used as piston, rod, or face seals, the SPT(SI PAI TUO) spring energized seal is engineered to meet your exact specifications and design intent.

 

 

Spring energized seals are designed to handle a wide range of applications where traditional elastomers fail. It excels in applications with high-speeds, wide temperature ranges and those with corrosive media. The Spring energized seal is a sealing device consisting of a PTFE or other polymer, energized by a corrosion resistant metal spring.  When the seal is seated in the gland, the spring is under compression applying force on the gland sealing surfaces thereby creating a tight barrier to prevent gas or fluids from leaking.  The spring also provides resiliency to compensate for seal wear, gland misalignment or eccentricity.  While spring force provides adequate force for sealing at low pressure, at high pressure the system pressure augments the spring force to provide an even tighter seal.

Spring energized seals design is based on three principles:
High-performance, engineered materials
U-cup style seal jackets
Metal spring energizers 

MATERIALS
SPT combines material technology and seal design to optimize your sealing performance. The material technology uses high performance engineered polymers made from PTFE, PEEK, Polyimides, PPS and other polymer materials specified for your application.

SPRING ENERGIZED SEAL FEATURES 
Temperature: -268°C (-450°F) to +316°C (+600°F)
Pressure: Vacuum up to 3448 bar (50,000 psi)
Low and controlled friction
Broad chemical resistance

Spring-energized seals made of PTFE are characterized by:

• Low and high temperature resistance (-328°F to 500°F, -200°C to 260°C)
• FDA compliant compounds and designs available
• Exceptional resistance to chemicals and corrosion
• Provide the lowest coefficient of friction of all sealing materials
• Unlubricated dry-running capabilities
• Pressure for standard designs up to 3,000psi (210 bar)
• High pressure special seal designs up to 20,000psi (1380bar)*

spring energized oil seal

The different shape of spring seal/ spring energized seal

1.V-spring seals are designed for used in high or low presseure dynamic reciprocationg or rotary applications.

2.Slanted Coil Spring Seals are for low friction, dynamic reciprocating and rotary applications. The seal produces a near flat load curve when compressed ( installed ). They provide constant predictable loads through their very wide deflection range.

3.Helical Spring seals are designed for used in static or slow, infrequent dynamic sealing application due to high compression load over a small deflection range, which make these seals suitable when low pressure or vacuum and very low temperature ( cryogenic ) are present.

Applications & Industries 

Spring-energized PTFE Seals are suitable for service in the following industries:

• Pharmaceuticals
• Liquid Chromatography
• Food Processing
• Space Exploration
• Tire Production
• Hydraulics
• Vacuum Service
• Oilfield Exploration and Production
• Paint and Solvents

• Steel Mills
• Adhesives
• Cryogenic Service
• Liquid Handling Swivels
• Pumps and Valves
• Gas Production and Transportation
• Semiconductors
• Medical Equipment
• Gas Handling Equipment

Energized PTFE Spring Seals:

Type	Use for	Technical	Application	Material
Symmetric	standard heel groove	temperacture:-40~+260 °C ,speed ≤m/s:15,pressure≤ Mpa:45	virtually all fluids,chemicals and gases	PTFE-filled stainless steel
rod	standard heel groove	temperacture:-40~+260 °C ,speed ≤m/s:15,pressure≤ Mpa:45	virtually all fluids,chemicals and gases	PTFE-filled stainless steel
piston	standard heel groove	temperacture:-40~+260 °C ,speed ≤m/s:15,pressure≤ Mpa:45	virtually all fluids,chemicals and gases	PTFE-filled stainless steel
symetric for rod	flanged heel groove	temperacture:-40~+260 °C ,speed ≤m/s:2,pressure≤ Mpa:25	virtually all fluids,chemicals and gases	PTFE-filled stainless steel
high-low lip rod	flanged heel groove	temperacture:-40~+260 °C ,speed ≤m/s:2,pressure≤ Mpa:25	virtually all fluids,chemicals and gases	PTFE-filled stainless steel
inside	face seal	temperacture:-40~+260 °C ,speed:static or slow rotary,pressure≤ Mpa:45	virtually all fluids,chemicals and gases	PTFE-filled stainless steel
outside	face seal	temperacture:-40~+260 °C ,speed:static or slow rotary,pressure≤ Mpa:45	virtually all fluids,chemicals and gases	PTFE-filled stainless steel

Products Show

Name	Material
U-packing	U-packing PTFE+FKM/FPM/NBR/HNBR Filled
Stem packing	The Spring loaded Filled PTFE Stem Packing,   Back up ring : PEEK ;   The spring seal: PTFE TFM

Company Profile

Packaging & Shipping

FAQ

Q1. Are you a factory or trading company?
We have factory in Xingtai and office in Shijiazhuang, Hebei Province. Convenient Transportation. It's not far from the Zhengding international airport. We warmly welcome clients from all over the world to come to our factory for visit and cooperation.

Q2. What's your sample policy ?
We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q3. Can you produce according to the samples or drawings?
Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q4. What's your Delivery time ?
If the good are in stock generally it is 3-5 working days after receiving your advance payment.
About 7-15 working days if we have mold or 21-28 working days without mold.
The specific delivery time depends on the items and quantity of your order quantity.

Q5.What's your payment terms?
For sample and small order, 100% Paypal. Western Union, T/T.
For bulk order, T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q6. Why choose to cooperate with you? What's your advantage?
1). Strong point:We have our own factory,so the price can be competitive and the quality is reliable.
2). We can offer you a good after-sell service, prompt deliver.
3). We can provide various size and colors according to customers' requirements.
4). By long time testing, quality proved to be excellent.
5). Updated product design.
6). Advanced manufacturing process, with global standards.
7). We win by the high quality and then have a long-term business relationship.

Q7. How do you make our business long-term and good relationship?
1). We keep good quality and competitive price to ensure our customers benefit;
2). We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

Our rubber seals are diverse and extensive, so if there is no item what you need, we encourage you to send the drawing or samples to us directly for more information.