Logan Clay Pipe-O Ring Joint

Logan's O-Ring Joint

Field Tested–Field Proven
For more than 40 years the Logan O-Ring joint has been tested – in the field and in the lab. When installed according to the latest revision of ASTM C 12 specifications, our pipe and O-Ring joints eliminate the infiltration of groundwater and roots.

Logan O-Ring Average Dimensions

Pipe Size	Flat Socket "A" Diameter	Spigot "B" Diameter	Groove "C" Dimensions	Clearance* (A-B)/2	Groove* Space (A-C)/2	O-Ring Gasket Diameter
4"	5.585"	5.545"	5.241"	0.020"	0.172"	1/4"
6"	8.538"	8.469"	7.954"	0.035"	0.292"	7/16"
8"	10.868"	10.775"	10.278"	0.047"	0.295"	7/16"
10"	13.255"	13.164"	12.678"	0.047"	0.290"	7/16"
12"	15.690"	15.571"	15.115"	0.060"	0.288"	7/16"
15"	19.430"	19.340"	18.870"	0.045"	0.280"	7/16"
18"	23.253"	23.134"	22.570"	0.060"	0.342"	1/2"
21"	27.205"	27.111"	26.555"	0.047"	0.325"	1/2"
24"	30.994"	30.838"	30.201"	0.078"	0.396"	5/8"
* Dimensional control of mating surfaces is held to within +/- 0.020”.

Deflection Allowed by ASTM Specification
Normal Diameter	Deflection of Pipe
4-12" (101-305 mm), inclusive	1/2" (42 mm)
15-24" (381-610 mm), inclusive	3/8" (31 mm)

Pipe
O-Ring Joint
Y-Branches
T-Branches
Curves
Elbows
Saddles
Traps
Increasers and Reducers
Perforated Pipe
Channel Pipe
Repair Ys and Ts
Double Hubs and Stoppers
Sump Pipe and Meter Boxes

"Forty percent of our system is clay...We televised these lines based on the original risk equation, which indicated that due to age, these should be our areas of most significant risk. But they haven't degraded at all over time. Based on the way these pipes look they could easily last 200, 300 or 400 years."

Terry Martin, P.E.
Strategic Advisor to the
Corporate Asset Management Group
Seattle, Washington

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Product Sheet

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