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Engineering Tables

Summary of Test Results


CHARACTERISTIC	TEST	RESULTS
Color	Visual	Black
Hardness (test averages) at -30° farenheit at 73° farenheit at 116° farenheit	STM D2240-84 (See Table 4)	D70.6 D63.5 D55.1
Ultimate Compressive Strength (test averages) at -30° farenheit at 73° farenheit at 130° farenheit	ASTM D695-91 (See Table 5)	5857 psi 5505 psi 5311 psi
Ultimate Flexural Strength (Yield) (test averages) at -30° farenheit at 73° farenheit at 130° farenheit	ASTM D790-86 (Procedure B)	4961 psi 4240 psi 2641 psi
Modules of Elasticity (Averages based on Flexure) at -30° farenheit at 73° farenheit at 130° farenheit		36.6x10⁴ psi 28.0x10⁴ psi 1x10⁴ psi

Product Information - Standard Base


	SMALL BASE	MEDIUM BASE	LARGE BASE
Dimensions (inches)	9 3/4"x15 3/4"	12"x12"	18"x18"
Base Area	154 sq. inches	144 sq. inches	324 sq. inches
Weight (base only)	4.3 pounds	3.7 pounds	7.8 pounds

Typical Roof Loads - Small Size PPH Assembly


	SPACING OF PIPE SUPPORTS
PIPE SIZE	# OF PIPES	CONTENTS OF PIPE	6 FOOT	8 FOOT	10 FOOT
4 Inch	2	WATER	115 lb. (0.75 psi)	147 lb. (0.96 psi)	177 lb. (1.15 psi)
6 Inch	2	WATER	207.3 lb. (1.35 psi)	267.3 lb. (1.74 psi)	327.3 lb. (2.13 psi)

#: Number
lb: pounds
psi: pounds per square inch

Typical Roof Loads - Medium Size PPH Assembly


	SPACING OF PIPE SUPPORTS
PIPE SIZE	# OF PIPES	CONTENTS OF PIPE	6 FOOT	8 FOOT	10 FOOT
4 Inch	1 2 3	GAS WATER GAS WATER GAS WATER	94 lb. (0.36 psi) 127 lb. (0.49 psi) 163 lb. (0.63 psi) 229 lb. (0.88 psi) 232 lb. (0.89 psi) 331 lb. (1.3 psi)	115 lb. (0.44 psi) 159 lb. (0.61 psi) 205 lb. (0.79 psi) 293 lb. (1.1psi) 295 lb. (1.1 psi) 427 lb. (1.7 psi)	139 lb. (0.53 psi) 189 lb. (0.73 psi) 253 lb. (0.97 psi) 353 lb. (1.4 psi) 367 lb. (1.4 psi) 519 lb. (2.0 psi)
6 Inch	1 2 3	GAS WATER GAS WATER GAS WATER	139 lb. (0.53 psi) 219 lb. (0.84 psi) 253 lb. (0.97 psi) 413 lb. (1.6 psi) 376 lb. (1.4 psi) 607 lb. (2.33 psi)	179 lb. (0.69 psi) 279 lb. (1.1 psi) 333 lb. (1.3 psi) 533 lb. (2.1 psi) 487 lb. (1.9 psi) 787 lb. (3.0 psi)	219 lb. (0.84 psi) 339 lb. (1.3 psi) 413 lb. (1.6 psi) 653 lb. (2.51 psi) 607 lb. (2.3 psi) 967 lb. (3.7 psi)

#: Number
lb: pounds
psi: pounds per square inch

Typical Roof Loads - Large Size PPH Assembly


Large Size Portable Pipe Hanger Assembly
Nominal Base Dimensions:	18"x18" (calculations based on 17"x17")
Base Weight:	13 lb each, 26 per assembly
Frame Weight:	16 lb
Hanger Weight:	4 lb each (4 and 6"); 16 lb each (8"); 20 lb each (est) (10" and 12")

	SPACING OF PIPE SUPPORTS
PIPE SIZE	# OF PIPES	CONTENTS OF PIPE	6 FOOT	8 FOOT	10 FOOT
4 Inch	1 2 3	GAS WATER GAS WATER GAS WATER	111 lb. (0.19 psi) 144 lb. (0.25 psi) 180 lb. (0.32 psi) 264 lb. (0.43 psi) 249 lb. (0.44 psi) 348 lb. (0.61 psi)	132 lb. (0.23 psi) 176 lb. (0.31 psi) 222 lb. (0.39 psi) 310 lb. (0.54 psi) 312 lb. (0.55 psi) 444 lb. (0.78 psi)	156 lb. (0.27 psi) 206 lb. (0.36 psi) 270 lb. (0.47 psi) 376 lb. (0.65 psi) 384 lb. (0.67 psi) 534 lb. (0.94 psi)
6 Inch	1 2 3	GAS WATER GAS WATER GAS WATER	156 lb. (0.27 psi) 236 lb. (0.41 psi) 270 lb. (0.47 psi) 430 lb. (0.75 psi) 384 lb. (0.67 psi) 624 lb. (1.1 psi)	196 lb. (0.34 psi) 296 lb. (0.52 psi) 350 lb. (0.61 psi) 550 lb. (0.96 psi) 504 lb. (0.88 psi) 804 lb. (1.4 psi)	236 lb. (0.41 psi) 356 lb. (0.62 psi) 430 lb. (0.75 psi) 670 lb. (1.2 psi) 624 lb. (1.1 psi) 984 lb. (1.7 psi)
8 Inch	1 2	GAS WATER GAS WATER	228 lb. (0.40 psi) 358 lb. (0.63 psi) 414 lb. (0.73 psi) 674 lb. (1.2 psi)	288 lb. (0.51 psi) 458 lb. (0.80 psi) 534 lb. (0.94 psi) 874 lb. (1.5 psi)	348 lb. (0.61 psi) 558 lb. (0.98 psi) 654 lb. (1.2 psi) 1,074 lb. (1.9 psi)
10 Inch	1 2	GAS WATER GAS WATER	302 lb. (0.53 psi) 512 lb. (0.90 psi) 562 lb. (0.99 psi) 982 lb. (1.7 psi)	382 lb. (0.67 psi) 662 lb. (1.2 psi) 722 lb. (1.3 psi) 1,282 lb. (2.2 psi)	472 lb. (0.83 psi) 812 lb. (1.4 psi) 902 lb. (1.6 psi) 1,582 lb. (2.8 psi)
12 Inch	1	GAS WATER	362 lb. (0.64 psi) 652 lb. (1.1 psi)	462 lb. (0.81 psi) 852 lb. (1.5 psi)	562 lb. (0.99 psi) 1,052 lb. (1.8 psi)

Loads - Standard Pipe


	SPACING OF PIPE SUPPORTS
PIPE DIAMETER (NOMINAL)	CONTENTS	WEIGHT (pipe and contents only)	6 FOOT	8 FOOT	10 FOOT
4"	GAS WATER	10.79 plf 16.30 plf	65 lb 98 lb	86 lb 130 lb	110 lb 160 lb
5"	GAS WATER	14.62 plf 23.28 plf	88 lb 140 lb	117 lb 190 lb	150 lb 230 lb
6"	GAS WATER	18.98 plf 31.49 plf	110 lb 190 lb	150 lb 250 lb	190 lb 310 lb
8"	GAS WATER	28.56 plf 50.24 plf	170 lb 300 lb	230 lb 400 lb	290 lb 500 lb
10"	GAS WATER	40.50 plf 74.60 plf	240 lb 450 lb	320 lb 500 lb	410 lb 750 lb
12"	GAS WATER	49.60 plf 98.60 plf	300 lb 590 lb	400 lb 790 lb	500 lb 990 lb

lb: pounds
plf: pounds per linear foot

Max. Allowable Loading by Size/Roof Insulation Type


DECK INSULATION	STRESS	SMALL BASE	MEDIUM BASE	LARGE BASE
Expanded Poltstyrene Glass/Mineral Fiber Polyisocyanurate Extruded Poltstyrene Fiber Board Perlite Cellular Glass	5 psi 5 psi 5 psi 6 psi 6 psi 17.5 psi 50 psi	770 pounds 770 pounds 770 pounds 924 pounds 924 pounds 2,695 pounds 7,700 pounds	720 pounds 720 pounds 720 pounds 864 pounds 864 pounds 2,520 pounds 7,200 pounds	1,620 pounds 1,620 pounds 1,620 pounds 1,944 pounds 1,944 pounds 5,670 pounds 16,200 pounds

Please note that the placement of individual bases must be reviewed by a Structural Engineer to ensure that the roof structure is not overloaded.

Based on a factor of safety of 2 against published minimum ultimate values of insulation compression strength
(NRCA Commercial Low-Slope Roofing Materials Guide, 1994 Edition). Designer must also ensure adequacy
against punching resistance and overall structural integrity of the roof on which the assembly is placed.
Resultant stresses from lateral loads on pipes may result in higher stresses in substrate than plain gravity loads.

Test Data Summary Sheet - Hardness Test


TEST NUMBER	TEST SPECIMEN TEMPERATURE
TEST NUMBER	-30°F	73°F	130°F
1 2 3 Average	70.4 70.8 70.6 70.6	63.6 63 63.8 63.5	55 55.6 54.8 55.1

°F: degrees Fahrenheit

Test Method: ASTM D695-91

Test Data Summary Sheet - Compression Test


TEST NUMBER	TEST SPECIMEN TEMPERATURE
TEST NUMBER	-30°F	73°F	130°F
1 2 3 Average	5,592 psi 5,880 psi 6,100 psi 5,857 psi	5,524 psi 5,548 psi 5,444 psi 5,505 psi	5,380 psi 5,212 psi 5,340 psi 5,311 psi

°F: degrees Fahrenheit
psi: pounds per square inch

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