Garlock 3500

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PTFE垫片

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产品描述

商品名称: Garlock 3500

MATERIAL PROPERTIES

Color:	Fawn
Composition:	PTFE with silica
Fluid Services (see chemical resistance guide):	Strong acids (except hydrofluoric), steam, solvents, hydrocarbons, chlorine and cryogenics
Temperature2 , °F (°C)
Minimum:	-450 (-268)
Minimum:	+500 (+260)
Pressure2 , Maximum, psig (bar):	1200 (83)
P x T (max.)2 , psig x °F (bar x °C)
1/32 and 1/16":	350,000 (12,000)
1/8":	250,000 (8,600)
Flammability:	Will Not Support Flame
Bacterial Growth:	Will Not Support
Meets Specification:	ABS (American Bureau of Shipping), FDA (Food and Drug Administration) and USDA (US Department of Agriculture)

TYPICAL PHYSICAL PROPERTIES*

ASTM F36	Compressibility, average, %:	7-12
ASTM F36	Recovery, %:	40
ASTM F38	Creep Relaxation, %:	18
ASTM D1708	Tensile, Across Grain, psi (N/mm2):	2000 (13.8)
ASTM D792	Specific Gravity:	2.10
ASTM D1708	Modulus @ 100% Elongation, psi (N/mm2):	1600 (11.0)
ASTM F433	Thermal Conductivity (K), W/m°K (Btu.·in./hr.·ft.2·°F):	0.36-0.45 (2.50-3.15)
ASTM D149	Dielectric Properties, range, volts/mil.
	Sample conditioning	1/16"		1/8"
	3 hours at 250°F:	362		-
	96 hours at 100% Relative Humidity	61		-
ASTM F586	Design Factors	1/16" & Under		1/8"
	"m" factor:	5.0		5
	"y" factor, psi (N/mm2):	2750 (19.0)		3500 (24.1)
ROTT	Gasket Constants:
	1/16":	Gb=940	a=0.253	Gs=2.6
	1/8":	Gb=1980	a=0.169	Gs=0.393

SEALING CHARACTERISTICS

Gasket Load, psi (N/mm2):	ASTM F37B – Fuel A	DIN 3535 – Nitrogen
Gasket Load, psi (N/mm2):	1000 (7)	4640 (32)
Internal Pressure, psig (bar)	9.8 (0.7)	580 (40)
Leakage	0.12 ml/hr.	<0.015 cc/min

Notes：
* This is a general guide and should not be the sole means of selecting or rejecting this material. ASTM test results in accordance with ASTM F-104; properties
1.Based on ANSI RF flanges at our preferred torque. When approaching maximum pressure, continuous operating temperature, minimum temperature or 50% of maximum PxT, consult Garlock Applications Engineering. Minimum temperature rating is conservative.

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