Gaskets Inc GT23C Hollow Core Stainless Steel Fiberglass Tadpole Seal

Type 2 Vermiculite Coated - 1" hollow bulb x 2" tail

Type 2 Tadpole Seals are used in sealing oven doors, covers, damper blades, panel joints, ducting, expansion joints, burners and other applications where conformance to uneven flanges and surfaces is required. The tail or fin sections of the tadpole can be attached to metal or refractory surfaces by bolting or metal strapping, sheet metal screws, or by welding when the tadpole is made with metal mesh covers. Special application include extremely low, as well as extremely high temperature applications, as those found in cryogenics and refractory operations.

Code Explanation

Prefix - G: Gaskets, Incorporated First Symbol: T - Tadpole Second Symbol: Cover Material Code

Tadpole seals have a cover and a core. Cover materials are pliable high-temp cloths or tapes that are pre-sized or slit tc accommodate the final dimensions of the finished tadpole seal. The cover is sewn with high temperature thread tc encapsulate the core.

Code Description

07 = .09" thick ceramic cloth with wire insert (2000°F/1093°C)
08 = .125" thick ceramic cloth with wire insert (2000°F/1093°C)
09 = Inconel8 wire stocking (1800°F/980°C)
10 = Aluminized fiberglass cloth (1000°F/538°C)
11 = Heat-treated fiberglass cloth or tape (1000°F/538°C)
12 = PTFE coated fiberglass cloth or tape (500°F/260°C)
13 = Silica cloth (1800°F/980°C)
14 = Silicone coated woven fiberglass cloth (500°F/260°C)
15 = Aramid cloth or tape (500°F/260°C)
16 = 304 Stainless Steel wire wtocking (1200°F/649°C)
20 = Vermiculite impregnated (blue) fiberglass (1200°F/649°)
22 = Viton" coated fiberglass cloth (500°F/260°C)
23 = Vermiculite impregnated (tan) fiberglass (1200°F/649°C)
24 = Tacky - rubber coated fiberglass cloth (500°F/260°C)
25 = Crease and tear resistant PTFE coated fiberglass film (500°F/260°C)

Third Symbol: Core Material

Core materials are resilient high temperature cables.

Code Description

C = 304 Stainless Steel hollow core (1200°F/649°C)
D = Inconel* wire mesh (1800°F/980°C)
G = Galvanized steel mesh (800°F/427°C)
K = Aramid rope (500°F/260°C)
L = Ceramic rope (2000°F/1093°C)
M = Fiberglass rope (1000°F/538°C)
S = 304 Stainless Steel solid mesh (1200°F/649°C)

Tadpole Types

Type 1 = Double Tail, Bulb located in center.
Type 2 = Single Tail, Bulb located to one side.
Type 3 = Single Tail to one side, Double Bulb.
Type 8 = Center Tail, Double Bulb.

Size

Type 1, & 2 have two key dimensions. Bulb diameter (C) and overall width (D) are critical. Type 3 has an added dimension for bulb width. Gap size (A) is a third measurement required for Type 8 tadpoles.