Advantages:

The design of LPG incorporated overlapping and offsetting seal grooves. The purpose of this design is to break each layer of laminate within the seal itself there by creating a barrier through which fluid and/or gas cannot migrate. The sealing element can be any elastomeric material as well as more sophisticated Spring-Energized Teflon seals. As a result of this advanced seal design, maintenance free flange isolation and flange face corrosion mitigation are achieved economically.

The LPG is available in both full-face (Type E) and ring style (Type F)configurations. Depending upon the sealing element selected, the LPG is rated for most all hydrocarbon and water service applications.

Materials:

Retainer Material

1) G-10 Glass-Reinforced Epoxy (GRE)laminate:

Compressive Strength: 65,000 PSI 

Dielectric Strength: 750-800 VPM 

Max.Continuous Operating Temp: 300 degrees F (150 degrees Celsius) 

Water Absorption: .05% 

Flexural Strength: 65,000 PSI 

Tensile Strength: 50,000 PSI 

2) G-11 Glass-Reinforced Epoxy (GRE) HighTemp. laminate material:

Compressive Strength: 50,000 PSI 

Dielectric Strength: 500 VPM 

Max.Continuous Operating Temp: 398 degrees F (200 degrees Celsius) 

Water Absorption: .085% 

Flexural Strength: 57,700 PSI 

Tensile Strength: 41,000 PSI 

Seal Material

.PTFE (Spring-Energized)

.Viton

.Nitrile

.EPDM

Isolating Sleeve 

.GRE

.Mylar

.NOMEX 

Isolating Washers 

.GRE - G10/G11

Steel Washer 

.ZPS (Zinc plated Carbon Steel)

.XPS (Xylan coated Carbon Steel) 

.SS (Stainless Steel)