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These valves have revolutionized the installation of circulator pumps. Our original Isolator uni-flange ball valve design has evolved into the largest flanged ball valve program in the industry today. No matter what your installation requires, there is an Isolator to meet your needs.
- With detachable rotating flange
- With adjustable packing gland nut and bolt
- Saves labor, saves space and reduces leak paths
- Prevents electrolysis
- Eliminates galvanic corrosion
- Allows virtually no air into system upon pump replacement
- Slotted holes for high velocity pumps
- Guaranteed for life
- Designed for residential, commercial or industrial use with water or a glycol mixture
- Valve is actuated by a blowout proof stem and features an adjustable packing gland
- Flange features a conical inlet to minimize turbulence
- Other solder materials have lower pressure/temperature limits
- Do not silver braze or over heat valves when soldering
- Patented technology
- Brass end cap, seat retainer, drain end cap, drain stem, drain packing gland and drain handle screw, stainless steel handle nut, vinyl handle jacket, steel zinc plated flange bolts and nuts, PTFE drain seat and drain stem seal, enamel coated aluminum drain handle, EPDM washer, brass cap with EPDM strap
Webstone Valve 41413
These valves have revolutionized the installation of circulator pumps. Our original Isolator uni-flange ball valve design has evolved into the largest flanged ball valve program in the industry today. No matter what your installation requires, there is an Isolator to meet your needs.
- With detachable rotating flange
- With adjustable packing gland nut and bolt
- Saves labor, saves space and reduces leak paths
- Prevents electrolysis
- Eliminates galvanic corrosion
- Allows virtually no air into system upon pump replacement
- Slotted holes for high velocity pumps
- Guaranteed for life
- Designed for residential, commercial or industrial use with water or a glycol mixture
- Valve is actuated by a blowout proof stem and features an adjustable packing gland
- Flange features a conical inlet to minimize turbulence
- Other solder materials have lower pressure/temperature limits
- Do not silver braze or over heat valves when soldering
- Patented technology
- Brass end cap, seat retainer, drain end cap, drain stem, drain packing gland and drain handle screw, stainless steel handle nut, vinyl handle jacket, steel zinc plated flange bolts and nuts, PTFE drain seat and drain stem seal, enamel coated aluminum drain handle, EPDM washer, brass cap with EPDM strap
Webstone Valve 41404
These valves have revolutionized the installation of circulator pumps. Our original Isolator uni-flange ball valve design has evolved into the largest flanged ball valve program in the industry today. No matter what your installation requires, there is an Isolator to meet your needs.
- With detachable rotating flange
- With adjustable packing gland nut and bolt
- Saves labor, saves space and reduces leak paths
- Prevents electrolysis
- Eliminates galvanic corrosion
- Allows virtually no air into system upon pump replacement
- Slotted holes for high velocity pumps
- Guaranteed for life
- Designed for residential, commercial or industrial use with water or a glycol mixture
- Valve is actuated by a blowout proof stem and features an adjustable packing gland
- Flange features a conical inlet to minimize turbulence
- Other solder materials have lower pressure/temperature limits
- Do not silver braze or over heat valves when soldering
- Patented technology
- Brass end cap, seat retainer, drain end cap, drain stem, drain packing gland and drain handle screw, stainless steel handle nut, vinyl handle jacket, steel zinc plated flange bolts and nuts, PTFE drain seat and drain stem seal, enamel coated aluminum drain handle, EPDM washer, brass cap with EPDM strap
Webstone Valve 41403
These valves have revolutionized the installation of circulator pumps. Our original Isolator uni-flange ball valve design has evolved into the largest flanged ball valve program in the industry today. No matter what your installation requires, there is an Isolator to meet your needs.
- With detachable rotating flange
- With adjustable packing gland nut and bolt
- Saves labor, saves space and reduces leak paths
- Prevents electrolysis
- Eliminates galvanic corrosion
- Allows virtually no air into system upon pump replacement
- Slotted holes for high velocity pumps
- Guaranteed for life
- Designed for residential, commercial or industrial use with water or a glycol mixture
- Valve is actuated by a blowout proof stem and features an adjustable packing gland
- Flange features a conical inlet to minimize turbulence
- Other solder materials have lower pressure/temperature limits
- Do not silver braze or over heat valves when soldering
- Patented technology
- Brass end cap, seat retainer, drain end cap, drain stem, drain packing gland and drain handle screw, stainless steel handle nut, vinyl handle jacket, steel zinc plated flange bolts and nuts, PTFE drain seat and drain stem seal, enamel coated aluminum drain handle, EPDM washer, brass cap with EPDM strap
Webstone Valve 51404
These valves have revolutionized the installation of circulator pumps. Our original Isolator uni-flange ball valve design has evolved into the largest flanged ball valve program in the industry today. No matter what your installation requires, there is an Isolator to meet your needs.
- With detachable rotating flange
- With adjustable packing gland nut and bolt
- Saves labor, saves space and reduces leak paths
- Prevents electrolysis
- Eliminates galvanic corrosion
- Allows virtually no air into system upon pump replacement
- Slotted holes for high velocity pumps
- Guaranteed for life
- Designed for residential, commercial or industrial use with water or a glycol mixture
- Valve is actuated by a blowout proof stem and features an adjustable packing gland
- Flange features a conical inlet to minimize turbulence
- Other solder materials have lower pressure/temperature limits
- Do not silver braze or over heat valves when soldering
- Patented technology
- Brass end cap, seat retainer, drain end cap, drain stem, drain packing gland and drain handle screw, stainless steel handle nut, vinyl handle jacket, steel zinc plated flange bolts and nuts, PTFE drain seat and drain stem seal, enamel coated aluminum drain handle, EPDM washer, brass cap with EPDM strap
Webstone Valve 51414
These valves have revolutionized the installation of circulator pumps. Our original Isolator uni-flange ball valve design has evolved into the largest flanged ball valve program in the industry today. No matter what your installation requires, there is an Isolator to meet your needs.
- With detachable rotating flange
- With adjustable packing gland nut and bolt
- Saves labor, saves space and reduces leak paths
- Prevents electrolysis
- Eliminates galvanic corrosion
- Allows virtually no air into system upon pump replacement
- Slotted holes for high velocity pumps
- Guaranteed for life
- Designed for residential, commercial or industrial use with water or a glycol mixture
- Valve is actuated by a blowout proof stem and features an adjustable packing gland
- Flange features a conical inlet to minimize turbulence
- Other solder materials have lower pressure/temperature limits
- Do not silver braze or over heat valves when soldering
- Patented technology
- Brass end cap, seat retainer, drain end cap, drain stem, drain packing gland and drain handle screw, stainless steel handle nut, vinyl handle jacket, steel zinc plated flange bolts and nuts, PTFE drain seat and drain stem seal, enamel coated aluminum drain handle, EPDM washer, brass cap with EPDM strap
Webstone Valve 51413
Bell & Gossett 189128LF Noryl Plastic Impeller, 3-3/8" Diameter
- Impellers are installed on the end of the pump shaft, which spins the impeller in turn pumping water or other liquid, throughout your system