Auer Steel
Skip to main content
Site Search
submit search
Products
Brands
Training
Services
After Hours Emergency Service
Curbside Pickup
Delivery
Engineering Support
Marketing
Technical Support
Text Services
Warranty
Resources
Mobile App
Auer Rewards
FAQ
IAQ Resource Center
Line Cards
New Business Application
News & Updates
Payment Portal
About Us
Auer Story
Auer Life
Auer Careers
Locations
Milwaukee
Neenah
Madison
Sheboygan
Sturtevant
Pewaukee
Woolworth
Plymouth
Fargo
Request Business Account
Cart (
)
{0} items in cart
Sign In
menu
Search
Cart
Home
/
Hydronics
/
Circulator Pumps
/
Pump Flanges and Unions
Filter
Skip to Results
Search Within Category
Search Tip:
Use four or more characters for best results.
Stocked Items
In Stock
Brands
Bell & Gossett (26)
Grundfos (17)
Taco (5)
Webstone (48)
Wilo (3)
Ball Material
Chrome Plated Brass (2)
HCP Brass (21)
Polished Chrome Brass (18)
Nominal Size
3/4 in (10)
1-1/4 in (10)
1-1/2 in (9)
2 in (13)
1 in (10)
3/4 to 1-1/4 in (1)
1-1/2 to 2 in (1)
Flow Rate
15 to 50 gpm (1)
55 to 120 gpm (1)
Dimensions
4-7/16 in Flange, 3 in Inlet to Outlet Length x 2-5/32 in Top to Inlet Center Valve (2)
4-7/16 in Flange, 3-35/64 in Inlet to Outlet Length x 3 in Top to Inlet Center Valve (2)
4-7/16 in Flange, 3-25/64 in Inlet to Outlet Length x 3 in Top to Inlet Center Valve (2)
4-7/16 in Flange, 2-57/64 in Inlet to Outlet Length x 2-5/32 in Top to Inlet Center Valve (1)
4-7/16 in L (5)
4-7/16 in Flange, 2-41/64 in Inlet to Outlet Length x 2 in Top to Inlet Center Valve (2)
4-7/16 in Flange, 2-27/64 in Inlet to Outlet Length x 2 in Top to Inlet Center Valve (1)
3-23/64 in L (1)
4-7/16 in Flange, 3-19/64 in Inlet to Outlet Length x 3 in Top to Inlet Center Valve (1)
Domestic/Import
Import (40)
Series
4140HV-RF (2)
4041 (3)
5140 (5)
5140HV-RF (2)
8141 (5)
8140 (4)
5041 (5)
8170 (1)
8140HV-RF (2)
4040 (5)
See All
Actuator Type
Lever Operated (4)
Handle (11)
Spring (2)
Wing T-Handle (3)
Lever Handle (12)
Media
Water (12)
Water/Glycol Mixture (31)
Softgoods Material
PTFE (38)
PTFE Packing Seat Ring (11)
EPDM (1)
EPDM/PTFE (2)
ABS/NBR (2)
Maximum Pressure
150 psi (4)
Pressure Rating
150 psi (2)
250 psi (15)
600 psi WOG (1)
600 psi (23)
150 psig (11)
600 psig WOG (3)
Inlet to Outlet Length
5-7/8 in (4)
4-3/4 in (1)
4-3/8 in (4)
4-3/16 in (1)
3-1/8 in (1)
2-7/8 in (1)
5 in (3)
4 in (3)
4-15/16 in (1)
4-7/16 in (5)
See All
Wetted Materials
PTFE Seat/Brass Stem/PTFE Packing Gland (1)
Type
Isolation (4)
Uni-Flange (1)
Pipe Size
1 in (1)
3/4 in (1)
1-1/4 in (2)
2 in (1)
1-1/2 in NPT (1)
Material
Steel (5)
Brass (1)
Cast Iron (7)
Bronze (1)
Body Material
Brass (25)
Forged Brass (30)
Inlet Port
2 in (1)
Port Type
Full (41)
Temperature Rating
200 deg F (17)
250 deg F (11)
100 deg F (31)
End Style
FNPT (1)
C (8)
Press (1)
IPS x Flange (8)
C x Rotating Flanged (7)
C x Flanged (10)
NPTF (2)
Flanged (2)
IPS x Rotating Flanged (2)
Press x Rotating Flanged (13)
Color
Brass (27)
Finish
Polished Chrome (16)
Top to Inlet Center
2-5/8 in (3)
3-1/2 in (10)
2-3/8 in (4)
3-3/16 in (2)
2-7/8 in (2)
3-1/4 in (3)
2-3/19 in (1)
2-1/4 in (3)
2-1/16 in (2)
3-9/16 in (1)
See All
Trim Material
Brass (11)
Brass Stem and PTFE Seat (41)
Pump Flanges and Unions
99
items
Sort by
Best Match
Product: A to Z
Product: Z to A
Brand: A to Z
Brand: Z to A
Product List View
Product Grid View
Product Table View
content loaded
Compare
Webstone
1 1/4 SWT LF ISOLATOR W/MF DRN & ROT FLG
Part #
51415W
Login for Price
Compare
Webstone
1 Iso Flg Swt Ball Flg Vlv 50404hv
Part #
50404HV
Ball Material
Polished Chrome Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1 Iso Flg Thd Ball Flg Vlv 40404hv
Part #
40404HV
Ball Material
Polished Chrome Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1 Npt Check-trol Iso Flange Pr 101232
Part #
CTF 1
Dimensions
4-7/16 in L
Maximum Pressure
150 psi
Type
Isolation
Login for Price
Compare
Bell & Gossett
1 Npt Iso Flange Pair 101222
Part #
ISO 1
Nominal Size
1 in
Dimensions
4-7/16 in Flange, 2-57/64 in Inlet to Outlet Length x 2-5/32 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Webstone
1 Prg Iso Pp Ball Vlv&drn 81414hv
Part #
81414HV
Ball Material
Polished Chrome Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1 Prg Iso Swt Ball Vlv&drn 50414hv
Part #
50414HV
Ball Material
HCP Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1 Prg Iso Thd Ball Vlv&drn 40414hv
Part #
40414HV
Ball Material
HCP Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1 Swt Check-trol Iso Flange Pr 101237
Part #
CTFS 1
Nominal Size
1 in
Dimensions
4-7/16 in Flange, 3 in Inlet to Outlet Length x 2-5/32 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Bell & Gossett
1 Swt Iso Flange Pair 101227
Part #
ISOS 1
Nominal Size
1 in
Dimensions
4-7/16 in Flange, 3 in Inlet to Outlet Length x 2-5/32 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Webstone
1 Swvl Iso Swt 51404hv
Part #
51404HV
Ball Material
HCP Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Iso Flg Swt Ball Flg Vlv 50406hv
Part #
50406HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Iso Flg Thd Ball Flg Vlv 40406hv
Part #
40406HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1-1/2 Npt Iso Flange Pair 101241
Part #
ISO 1-1/2
Dimensions
3-23/64 in L
Material
Brass
Login for Price
Compare
Webstone
1-1/2 Prg Iso Pp Ball Vlv&drn 81416hv
Part #
81416HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Prg Iso Swt Ball Vlv&drn 50416hv
Part #
50416HV
Ball Material
HCP Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Prg Iso Thd Ball Vlv&drn 40416hv
Part #
40416HV
Ball Material
HCP Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1-1/2 Swt Iso Flange Pair 101243
Part #
ISOS 1-1/2
Nominal Size
1-1/2 in
Dimensions
4-7/16 in Flange, 3-35/64 in Inlet to Outlet Length x 3 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Webstone
1-1/2 SWT ISOLATOR W/MF DRN & ROT FLG
Part #
51416HV
MFG #
H-51416HV
Login for Price
Compare
Webstone
1-1/2 Swvl Iso Pp 81406hv
Part #
81406HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Swvl Iso Swt 51406hv
Part #
51406HV
Ball Material
HCP Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1-1/2NptCheck-trolIsoFlangePr101245
Part #
CTF 1-1/2
Dimensions
4-7/16 in L
Maximum Pressure
150 psi
Type
Isolation
Login for Price
Compare
Bell & Gossett
1-1/2SwtCheck-trolIsoFlangePr101247
Part #
CTFS 1-1/2
Nominal Size
1-1/2 in
Dimensions
4-7/16 in Flange, 3-35/64 in Inlet to Outlet Length x 3 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Webstone
1-1/4 Iso Flg Swt Ball Flg Vlv 50405hv
Part #
50405HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/4 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1 1/4 SWT LF ISOLATOR W/MF DRN & ROT FLG
Part #
51415W
Login for Price
Compare
Webstone
1 Iso Flg Swt Ball Flg Vlv 50404hv
Part #
50404HV
Ball Material
Polished Chrome Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1 Iso Flg Thd Ball Flg Vlv 40404hv
Part #
40404HV
Ball Material
Polished Chrome Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1 Npt Check-trol Iso Flange Pr 101232
Part #
CTF 1
Dimensions
4-7/16 in L
Maximum Pressure
150 psi
Type
Isolation
Login for Price
Compare
Bell & Gossett
1 Npt Iso Flange Pair 101222
Part #
ISO 1
Nominal Size
1 in
Dimensions
4-7/16 in Flange, 2-57/64 in Inlet to Outlet Length x 2-5/32 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Webstone
1 Prg Iso Pp Ball Vlv&drn 81414hv
Part #
81414HV
Ball Material
Polished Chrome Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1 Prg Iso Swt Ball Vlv&drn 50414hv
Part #
50414HV
Ball Material
HCP Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1 Prg Iso Thd Ball Vlv&drn 40414hv
Part #
40414HV
Ball Material
HCP Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1 Swt Check-trol Iso Flange Pr 101237
Part #
CTFS 1
Nominal Size
1 in
Dimensions
4-7/16 in Flange, 3 in Inlet to Outlet Length x 2-5/32 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Bell & Gossett
1 Swt Iso Flange Pair 101227
Part #
ISOS 1
Nominal Size
1 in
Dimensions
4-7/16 in Flange, 3 in Inlet to Outlet Length x 2-5/32 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Webstone
1 Swvl Iso Swt 51404hv
Part #
51404HV
Ball Material
HCP Brass
Nominal Size
1 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Iso Flg Swt Ball Flg Vlv 50406hv
Part #
50406HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Iso Flg Thd Ball Flg Vlv 40406hv
Part #
40406HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1-1/2 Npt Iso Flange Pair 101241
Part #
ISO 1-1/2
Dimensions
3-23/64 in L
Material
Brass
Login for Price
Compare
Webstone
1-1/2 Prg Iso Pp Ball Vlv&drn 81416hv
Part #
81416HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Prg Iso Swt Ball Vlv&drn 50416hv
Part #
50416HV
Ball Material
HCP Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Prg Iso Thd Ball Vlv&drn 40416hv
Part #
40416HV
Ball Material
HCP Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1-1/2 Swt Iso Flange Pair 101243
Part #
ISOS 1-1/2
Nominal Size
1-1/2 in
Dimensions
4-7/16 in Flange, 3-35/64 in Inlet to Outlet Length x 3 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Webstone
1-1/2 SWT ISOLATOR W/MF DRN & ROT FLG
Part #
51416HV
MFG #
H-51416HV
Login for Price
Compare
Webstone
1-1/2 Swvl Iso Pp 81406hv
Part #
81406HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Webstone
1-1/2 Swvl Iso Swt 51406hv
Part #
51406HV
Ball Material
HCP Brass
Nominal Size
1-1/2 in
Domestic/Import
Import
Login for Price
Compare
Bell & Gossett
1-1/2NptCheck-trolIsoFlangePr101245
Part #
CTF 1-1/2
Dimensions
4-7/16 in L
Maximum Pressure
150 psi
Type
Isolation
Login for Price
Compare
Bell & Gossett
1-1/2SwtCheck-trolIsoFlangePr101247
Part #
CTFS 1-1/2
Nominal Size
1-1/2 in
Dimensions
4-7/16 in Flange, 3-35/64 in Inlet to Outlet Length x 3 in Top to Inlet Center Valve
Actuator Type
Handle
Login for Price
Compare
Webstone
1-1/4 Iso Flg Swt Ball Flg Vlv 50405hv
Part #
50405HV
Ball Material
Polished Chrome Brass
Nominal Size
1-1/4 in
Domestic/Import
Import
Login for Price
Results Per Page
24
48
72
96
First page
Previous page
1
2
3
4
5
Next page
Last page