1. Mechanical Seals
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235c
235c
Item #N/A
View ProductSingle Spring Mechanical Seal 235C — 1″ | PS-235 Equivalent
Equal to: Industry standard 235 / PS-235
Typical applications: Centrifugal pumps, mixers, and other rotating equipment.
Key specs: Shaft size: 1″ single spring seal • Seat: 1.625″ x 0.437″ cup • Rotary OD: 1.547″ • Working length: 1.ooo”
Design & construction:
Crimped rotary head (Type N-11)—similar to industry Type C / 21; can also replace Type D / 2 with a simple spring change (in most cases). Electro-polished 304 stainless steel metal parts. Elastomeric bellows. Non-directional (independent of shaft rotation).
Materials available (choose from dropdown)
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CAR/CER/NIT — Carbon vs. Ceramic faces, Nitrile elastomers
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CAR/CER/VIT — Carbon vs. Ceramic faces, Viton/FKM elastomers
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SIC/SIC/VIT — Silicon Carbide vs. Silicon Carbide faces, Viton/FKM elastomers
Please click “specifications” below for OEM numbers and Pump Nameplate Data
Have questions? Check out our Single Spring Seal Guide or call us anytime—we’re here to help.
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Gaskets.
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238c
238c
Item #N/A
View ProductSingle Spring Mechanical Seal 238C — 1-5/8″| PS-238 Equivalent
Equal to:Industry standard 238 / PS-238
Typical applications: Centrifugal pumps, mixers, and other rotating equipment.
Key specs: Shaft size: 1-5/8″ single spring seal • Seat: 2.375″ x .500″ cup • Rotary OD: 2.185″ • Working length: 1.375″
Design & construction:
Crimped rotary head (Type N-11)—similar to industry Type C / 21; can also replace Type D / 2 with a simple spring change (in most cases). Electro-polished 304 stainless steel metal parts. Elastomeric bellows. Non-directional (independent of shaft rotation).
Materials available (choose from dropdown menu above)
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CAR/CER/NIC — Carbon vs. Ceramic faces, Nitrile elastomers
-
CAR/CER/VIT — Carbon vs. Ceramic faces, Viton/FKM elastomers
-
SIC/SIC/VIT — Silicon Carbide vs. Silicon Carbide faces, Viton/FKM elastomers
Have questions? Check out our Single Spring Seal Guide or call us anytime—we’re here to help.
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.
Please click “specifications” below for OEM numbers and Pump Nameplate Data
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267c
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268c
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305c
305c
Item #N/A
View ProductSingle Spring Mechanical Seal 305c | PS-305 Equivalent
Equal to industry standard number 305 / PS-305
Shaft size: 1-1/2″ single spring mechanical seal with 2.125″ x .437″ cup seat, 2.067″ rotary OD, 1.687″ working length
Crimped rotary head type N-22. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.
Interchange / replacements:
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Equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9
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Can replace Type E and Type 1 in many applications (confirm dimensions)
Design & construction:
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Electro-polished 304 stainless steel metal parts
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Elastomeric bellows for stable sealing and easy installation
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Independent of shaft rotation
Material options (select above):
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CAR/CER/NIT — Carbon/Ceramic, Nitrile elastomers
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CAR/CER/VIT — Carbon/Ceramic, Viton® elastomers
-
SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton® elastomers
Please click “specifications” below for OEM numbers and Pump Nameplate Data
Have questions? Check out our Single Spring Seal Guide or call us anytime—we’re here to help.
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Gaskets.
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309c
309c
Item #N/A
View ProductSingle Spring Mechanical Seal 309C — 7/8″ | PS-309 Equivalent
Equal to:Industry standard 309 / PS-309
Typical applications: Centrifugal pumps, mixers, and other rotating equipment.
Key specs
7/8″ Single spring mechanical seal with 1.500″ x .405″ cup seat, 1.315″ rotary OD, 0.937″ working length
Design & construction
Crimped rotary head (type N-11) -similar to industry types such as C & 21 while they can also replace type D / 2 seal heads with a simple spring change in most cases (spring from before). Electro polished 304SS metal parts. Single spring mechanical seal, with an elastomeric bellows, all engineered for non-directional operation (independent of shaft rotation).
Materials available
(choose from dropdown menu above)
-
CAR/CER/NIC — Carbon vs. Ceramic faces, Nitrile elastomers
-
CAR/CER/VIT — Carbon vs. Ceramic faces, Viton elastomers
-
SIC/SIC/VIT — Silicon Carbide vs. Silicon Carbide faces, Viton® elastomers
Have questions? Check out our Single Spring Seal Guide or call us anytime—we’re here to help.
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.
Please click “specifications” below for OEM numbers and Pump Nameplate Data
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323c
323c
Item #N/A
View ProductSingle Spring Mechanical Seal 323c | PS-323 Equivalent
Equal to industry standard number 323 / PS-323
Shaft size: 2-1/4″ single spring mechanical seal with 3.125″ x .562″ cup seat, 3.150″ rotary OD, 2.375″ working length
Crimped rotary head type N-22. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.
Interchange / replacements:
-
Equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9
-
Can replace Type E and Type 1 in many applications (confirm dimensions)
Design & construction:
-
Electro-polished 304 stainless steel metal parts
-
Elastomeric bellows for stable sealing and easy installation
-
Independent of shaft rotation
Material options (select above):
-
CAR/CER/NIT — Carbon/Ceramic, Nitrile elastomers
-
CAR/CER/VIT — Carbon/Ceramic, Viton® elastomers
-
SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton® elastomers
Please click “specifications” below for OEM numbers and Pump Nameplate Data
Have questions? Check out our Single Spring Seal Guide or call us anytime—we’re here to help.
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Gaskets.
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340c
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354c
354c
Item #N/A
View ProductSingle Spring Mechanical Seal 354c | PS-354 Equivalent
Equal to industry standard number 354 / PS-354
Shaft size: 1-3/8″ single spring mechanical seal with 2.000″ x .437″ cup seat, 1.941″ rotary OD, 1.687″ working length
Crimped rotary head type N-22. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.
Interchange / replacements:
-
Equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9
-
Can replace Type E and Type 1 in many applications (confirm dimensions)
Design & construction:
-
Electro-polished 304 stainless steel metal parts
-
Elastomeric bellows for stable sealing and easy installation
-
Independent of shaft rotation
Material options (select above):
-
CAR/CER/NIT — Carbon/Ceramic, Nitrile elastomers
-
CAR/CER/VIT — Carbon/Ceramic, Viton® elastomers
-
SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton® elastomers
Please click “specifications” below for OEM numbers and Pump Nameplate Data
Have questions? Check out our Single Spring Seal Guide or call us anytime—we’re here to help.
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Gaskets.
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