PSS Flange & Bladder System

PSS Flange & Bladder System

Available in aluminum, steel or stainless steel.

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Product Specifications: PSS Flange & Bladder Dimensions

A large number of commercial vessels are manufactured with a multi bolt flange in lieu of a stern tube. Often, these flanges have a standard bolt pattern. In order to facilitate the installation of the PSS Shaft Seals on boats with these type of flanges, PYI manufactures an array of flanges which fit the "standard" bolt patterns and transform the flange into a stern tube ready to accept the PSS Shaft Seal. These adapters can be ordered as a "standard unit" or as a "inflatable bladder unit". The inflatable bladder option allows the operator to seal the stern tube, while the shaft is not rotating, in order to inspect or clean the seal. In addition, if the uncoupling of the shaft is needed, this operation can be done in the water as the shaft can be moved aft with bladder inflated with no water intrusion occurring. This inflatable bladder can also be used in case of an emergency.

How Does It Work?

Bladder is deflated in PSS Flange & Bladder System

Bladder Deflated

Bladder is deflated allowing water to flow through.

Bladder is inflated in PSS Flange & Bladder System

Bladder Inflated

Bladder is inflated closing off water flow.

Cross Section Of Flange & Bladder System

Section view of the PSS Flange & Bladder System

Dimensions

Here are dimensions of our standard PSS Flange & Bladder Systems. If you don't see one that will work for you we can custom make them. Feel free to contact us for more information.

Part # Shaft Ø Stern Tube Ø Bolt Circle Bolt Hole Size Flange Blank Size Flange Finished Length Flange ID Flange OD Flange Thickness Hole Spacing Inflatable Bladder ID # of Bolt Holes
07-BF212-312-A 2-1/2"
63.5mm
3-1/2"
88.9mm
5"
127mm
9/16"
14.29mm
4"x8"
101.6x203.2mm
3-7/8"
98.425mm
2-7/8"
50.8mm
6-1/4"
158.75mm
7/16"
11.113mm
30/60 2-7/8"
50.8mm
8
07-BF300-412-A 3"
76.2mm
4-1/2"
114.3mm
6-1/4"
158.75mm
11/16"
17.463mm
4"x8"
101.6x203.2mm
3-7/8"
98.425mm
3-3/8"
85.725mm
7-1/2"
190.5mm
7/16"
11.113mm
30/60 3-3/8"
85.725mm
8
07-BF314-514-A 3-1/4"
82.55mm
5-1/4"
127mm
6-1/4"
158.75mm
11/16"
17.463mm
4"x8"
101.6x203.2mm
3-7/8"
98.425mm
3-5/8"
92.075mm
7-1/2"
190.5mm
7/16"
11.113mm
30/60 3-5/8"
92.075mm
8
07-BF312-514-A 3-1/2"
88.9mm
5-1/4"
127mm
6-3/4"
171.45mm
11/16"
17.463mm
4-1/8"x9"
104.775x228.6mm
4"
101.6mm
3-7/8"
98.425mm
8-1/8"
206.375mm
5/8"
15.875mm
30/60 3-7/8"
98.425mm
8
07-BF334-514-A 3-3/4"
95.25mm
5-1/4"
127mm
6-3/4"
171.45mm
11/16"
17.463mm
4-1/8"x9"
104.775x228.6mm
4"
101.6mm
4-1/8"
104.775mm
8-1/8"
206.375mm
5/8"
15.875mm
30/60 4-1/8"
104.775mm
8
07-BF400-600-A 4"
101.6mm
6"
152.4mm
7-1/4"
184.15mm
11/16"
17.463mm
4-1/8"x9"
104.775x228.6mm
4"
101.6mm
4-3/8"
111.125mm
8-5/8"
219.075mm
5/8"
15.875mm
30/60 4-3/8"
111.125mm
8
07-BF414-600-A 4-1/4"
107.95mm
6"
152.4mm
7-1/4"
184.15mm
11/16"
17.463mm
4-1/8"x9"
104.775x228.6mm
4"
101.6mm
4-5/8"
117.475mm
8-5/8"
219.075mm
5/8"
15.875mm
30/60 4-5/8"
117.475mm
8
07-BF412-600-A 4-1/2"
114.3mm
6"
152.4mm
8"
203.2mm
11/16"
17.463mm
4-1/4"x10"
107.95x254mm
4-1/8"
104.775mm
4-7/8"
123.825mm
9-3/8"
238.125mm
13/16"
20.6375mm
30/60 4-7/8"
123.825mm
8
07-BF434-700-A 4-3/4"
120.65mm
7"
177.8mm
8"
203.2mm
11/16"
17.463mm
4.375"x10"
111.125x254mm
4-1/4"
107.95mm
5-1/8"
130.175mm
9-3/8"
238.125mm
13/16"
20.6375mm
30/60 5-1/8"
130.175mm
8
07-BF500-700-A 5"
127mm
7"
177.8mm
8-3/4"
222.25mm
11/16"
17.463mm
4-1/4"x11"
107.95x279.4mm
4-1/8"
104.775mm
5-3/8"
136.525mm
10-1/8"
257.175mm
13/16"
20.638mm
30/60 5-3/8"
136.525mm
8
07-BF514-700-A 5-1/4"
133.35mm
7"
177.8mm
8-3/4"
222.25mm
11/16"
17.463mm
4-1/4"x11"
107.95x279.4mm
4-1/8"
104.775mm
5-5/8"
142.875mm
10-1/8"
257.175mm
13/16"
20.638mm
30/60 5-5/8"
142.875mm
8
07-BF512-700-A 5-1/2"
139.7mm
7"
177.8mm
9-1/4"
234.95mm
11/16"
17.463mm
4-1/4"x11"
107.95x279.4mm
4-1/8"
104.775mm
5-7/8"
149.225mm
10-5/8"
269.875mm
13/16"
20.638mm
30/60 5-7/8"
149.225mm
8
07-BF534-700-A 5-3/4"
146.05mm
7"
177.8mm
9-1/4"
234.95mm
11/16"
17.463mm
4-1/4"x11"
107.95x279.4mm
4-1/8"
104.775mm
6-1/8"
155.575mm
10-5/8"
269.875mm
13/16"
20.638mm
30/60 6-1/8"
155.575mm
8
07-BF600-700-A 6"
152.4mm
7"
177.8mm
10-1/8"
257.175mm
11/16"
17.463mm
4-1/4"x12"
107.95x304.8mm
4-1/8"
104.775mm
6-3/8"
161.925mm
11-3/8"
288.925mm
13/16"
20.638mm
30/60 6-3/8"
161.925mm
8
Part # Shaft Ø Stern Tube Ø Bolt Circle Bolt Hole Size Flange Black Size Flange Finished Length Flange ID Flange OD Flange Thickness Hole Spacing Inflatable Bladder ID # of Bolt Holes
07-BF212-312-S 2-1/2"
63.5mm
3-1/2"
88.9mm
5"
127mm
9/16"
14.29mm
4"x8"
101.6x203.2mm
3-7/8"
98.425mm
2-7/8"
50.8mm
6-1/4"
158.75mm
7/16"
11.113mm
30/60 2-7/8"
50.8mm
8
07-BF300-412-S 3"
76.2mm
4-1/2"
114.3mm
6-1/4"
158.75mm
11/16"
17.463mm
4"x8"
101.6x203.2mm
3-7/8"
98.425mm
3-3/8"
85.725mm
7-1/2"
190.5mm
7/16"
11.113mm
30/60 3-3/8"
85.725mm
8
07-BF314-514-S 3-1/4"
82.55mm
5-1/4"
127mm
6-1/4"
158.75mm
11/16"
17.463mm
4"x8"
101.6x203.2mm
3-7/8"
98.425mm
3-5/8"
92.075mm
7-1/2"
190.5mm
7/16"
11.113mm
30/60 3-5/8"
92.075mm
8
07-BF312-514-S 3-1/2"
88.9mm
5-1/4"
127mm
6-3/4"
171.45mm
11/16"
17.463mm
4-1/8"x9"
104.775x228.6mm
4"
101.6mm
3-7/8"
98.425mm
8-1/8"
206.375mm
5/8"
15.875mm
30/60 3-7/8"
98.425mm
8
07-BF334-514-S 3-3/4"
95.25mm
5-1/4"
127mm
6-3/4"
171.45mm
11/16"
17.463mm
4-1/8"x9"
104.775x228.6mm
4"
101.6mm
4-1/8"
104.775mm
8-1/8"
206.375mm
5/8"
15.875mm
30/60 4-1/8"
104.775mm
8
07-BF400-600-S 4"
101.6mm
6"
152.4mm
7-1/4"
184.15mm
11/16"
17.463mm
4-1/8"x9"
104.775x228.6mm
4"
101.6mm
4-3/8"
111.125mm
8-5/8"
219.075mm
5/8"
15.875mm
30/60 4-3/8"
111.125mm
8
07-BF414-600-S 4-1/4"
107.95mm
6"
152.4mm
7-1/4"
184.15mm
11/16"
17.463mm
4-1/8"x9"
104.775x228.6mm
4"
101.6mm
4-5/8"
117.475mm
8-5/8"
219.075mm
5/8"
15.875mm
30/60 4-5/8"
117.475mm
8
07-BF412-600-S 4-1/2"
114.3mm
6"
152.4mm
8"
203.2mm
11/16"
17.463mm
4-1/4"x10"
107.95x254mm
4-1/8"
104.775mm
4-7/8"
123.825mm
9-3/8"
238.125mm
13/16"
20.6375mm
30/60 4-7/8"
123.825mm
8
07-BF434-700-S 4-3/4"
120.65mm
7"
177.8mm
8"
203.2mm
11/16"
17.463mm
4.375"x10"
111.125x254mm
4-1/4"
107.95mm
5-1/8"
130.175mm
9-3/8"
238.125mm
13/16"
20.6375mm
30/60 5-1/8"
130.175mm
8
07-BF500-700-S 5"
127mm
7"
177.8mm
8-3/4"
222.25mm
11/16"
17.463mm
4-1/4"x11"
107.95x279.4mm
4-1/8"
104.775mm
5-3/8"
136.525mm
10-1/8"
257.175mm
13/16"
20.638mm
30/60 5-3/8"
136.525mm
8
07-BF514-700-S 5-1/4"
133.35mm
7"
177.8mm
8-3/4"
222.25mm
11/16"
17.463mm
4-1/4"x11"
107.95x279.4mm
4-1/8"
104.775mm
5-5/8"
142.875mm
10-1/8"
257.175mm
13/16"
20.638mm
30/60 5-5/8"
142.875mm
8
07-BF512-700-S 5-1/2"
139.7mm
7"
177.8mm
9-1/4"
234.95mm
11/16"
17.463mm
4-1/4"x11"
107.95x279.4mm
4-1/8"
104.775mm
5-7/8"
149.225mm
10-5/8"
269.875mm
13/16"
20.638mm
30/60 5-7/8"
149.225mm
8
07-BF534-700-S 5-3/4"
146.05mm
7"
177.8mm
9-1/4"
234.95mm
11/16"
17.463mm
4-1/4"x11"
107.95x279.4mm
4-1/8"
104.775mm
6-1/8"
155.575mm
10-5/8"
269.875mm
13/16"
20.638mm
30/60 6-1/8"
155.575mm
8
07-BF600-700-S 6"
152.4mm
7"
177.8mm
10-1/8"
257.175mm
11/16"
17.463mm
4-1/4"x12"
107.95x304.8mm
4-1/8"
104.775mm
6-3/8"
161.925mm
11-3/8"
288.925mm
13/16"
20.638mm
30/60 6-3/8"
161.925mm
8

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