Categories
Hydronic And Steam Specialties
Backflow Preventers
(2)
Boiler Feeds and Cutoffs
(106)
Check Valves
(5)
Circuit Setters
(5)
Condensate Pumps
(17)
Drain Valves
(2)
Expansion Tanks
(9)
Flow Control valves
(7)
Pressure Reducing Valves
(9)
Pressure Relief Valves
(44)
Pump Sequencers
(1)
Pumps
(233)
Sight Glasses & Accessories
(27)
Steam Traps
(38)
Strainers
(4)
Tridicator Gauges
(9)
Vacuum Breakers
(1)
Vents
(24)
Brands
Hydronic And Steam Specialties
40L3-3/4-150 Watts 0153614 Temp/Pressure Relief Valve For Hot
Temp/Pressure Relief Valve For Hot Water Heater. 150 PSI Abd 210 degrees 3 Extension Thermostat. Rated 180000 BTU Temp. 3/4 Mpt X 3/4 Fpt.
Watts
40L3-3/4-150
$245.16
EA
$471.47
2 In Stock
40XL3/4-125 Watts F156481 Temp/Pressure Relief Valve For Hot
Temp/Pressure Relief Valve For Hot Water Heater. 125 PSI And 210 degrees 5 Extension Thermostat. Rated 200000 BTU Temp. 3/4 Mpt X 3/4 Fpt.
Watts
40XL3/4-125
098268009750
$181.78
EA
$349.58
1 In Stock
40XL3/4-150 Watts F156731 Pressure-Temperature Relief For Hot
Pressure-Temperature Relief For Hot Water Heater. Setting 150 Psi / 210 F. 5 Temperature Probe. 3/4 X 3/4 Rated for 205,000 Btu
Watts
40XL3/4-150
098268009767
$173.20
EA
$333.08
9 In Stock
40XL4-1-125 Watts 0163720 Press/Temp Rlf 4 Snsr 500K BTU
Press/Temp Rlf 4 Snsr 500K BTU * Temp/Pressure Relief Valve For Hot Water Heater. 125 PSI And 210 degrees 4 Extension Thermostat. Rated 500000 BTU Temp. 1 X 1 Fpt.
Watts
40XL4-1-125
$274.69
EA
$528.25
3 In Stock
40XL4-1-150 Watts F163725 Press/Temp Rlf 4 Snsr 500K BTU
Press/Temp Rlf 4 Snsr 500K BTU 1"MPT X 1" FPT Temperature-Pressure Relief For Hot Water Heater. Setting 150PSI/210F. 4 Sensor. Rated For 500000 BTU.
Watts
40XL4-1-150
098268009897
$258.95
EA
$497.98
1 In Stock
42S Mcdonnell & Miller 129302 Low water/pump control
Low water/pump control 42 Replaced with Model# 42S No Mercury, has Snap Switch Low water cut off and pump control for steam boilers. Max pressure 50 PSI. Mercury free. No Mercury, has Snap Switch 42mcd 42smcd 42s 42
McDonnell & Miller
42S
$1,667.02
EA
$2,381.45
1 In Stock
47 Mcdonnell & Miller 132700 Water Feeder
Water Feeder * Water Feeder For Steam Boilers. Max. Boiler Pressure 25 PSI.
McDonnell & Miller
47
$1,830.20
EA
$2,614.57
2 In Stock
47-2 Mcdonnell & Miller 132800 Water Feeder For Steam Boilers.
Water Feeder For Steam Boilers. Includes SPDT Boiler Cut-Off Switch. 10.2A @ 120V5.1A @ 240V. Max Boiler Press. 25 PSI
McDonnell & Miller
47-2
$2,190.72
EA
$3,124.90
8 In Stock
5 Mcdonnell & Miller 110300 Switch for 93 193 94 and 194
Switch for 93 193 94 and 194 Xylem-McDonnell & Miller SWITCH ASSM,2-SPDT #110300
McDonnell & Miller
5
751875000069
$1,715.54
EA
$2,447.07
Not in stock
51 Mcdonnell & Miller 134700 Water Feeder
Water Feeder * Water Feeder For Steam Or Hot Water Boilers. Max. Boiler Pressure 35 PSI.
McDonnell & Miller
51
$2,346.17
EA
$3,351.67
1 In Stock
51-2 Mcdonnell & Miller 135000 Water Feeder
Water Feeder * Water Feeder For Steam Or Hot Water Boilers. Includes SPDT Switch For Cut-Off. Rating 10.2A @ 120V 5.1A @ 240V. Max Boiler Press. 35 PSI.
McDonnell & Miller
51-2
$2,693.47
EA
$3,842.01
6 In Stock
519603 Grundfos 1-1/4 inch NPT cast iron flange
1-1/4 inch NPT cast iron flange set. GF15/26
Grundfoss
519603
$24.42
EA
$55.17
Not in stock
519604 Grundfos 519604 Iron Flange Set 1-1/2
Iron Flange Set 1-1/2 * 1-1/2 inch NPT cast iron flange set. GF15/26
Grundfoss
519604
$24.42
EA
$55.17
1 In Stock
51HD Mcdonnell & Miller 134900 Head Assembly For McDonnell Miller
Head Assembly For McDonnell Miller 51 Mech. Water Feeders. #2 SWITCH NOT INCLUDED. SPDT Switch Rating 10.2A @ 120V 5.1A @ 240V.
McDonnell & Miller
51HD
$2,099.20
EA
$2,994.35
10 In Stock
51S2 Mcdonnell & Miller 135900 High Capacity Water Feeder For
High Capacity Water Feeder For Steam And Hot Water Boilers. Includes SPDT Switch. Rating 10.2A @ 120V 5.1A @ 240V. Max Pressure 35 PSI. For Boilers Up 35000 Sq.Ft/Hour
McDonnell & Miller
51S2
$3,139.98
EA
$4,485.69
1 In Stock
51SHD Mcdonnell & Miller 135800 Head Assembly for 51S
Head Assembly for 51S * Head Assembly For McDonnell Miller 51S Mech. Water Feeder. SPST Switch Rating 10.2A @ 120V 5.1A @ 240V.
McDonnell & Miller
51SHD
$2,468.55
EA
$3,526.50
2 In Stock
$48.13
EA
$122.92
Not in stock
58GG12-12 Crown Boiler Sight Glass. 5/8 X 12
Boiler Sight Glass. 5/8 X 12 Max water pressure 200# at 150F. Max Steam pressure 100#/425F. ORDERED IN 12 PACK ONLY. Replaces SG12, H1-12.
58GG12-12
$1.60
EA
$4.69
64 In Stock
58GG24-06 Crown Boiler Sight Glass. 5/8 X 24
Boiler Sight Glass. 5/8 X 24 Max water pressure 180# at 150F., Max Steam pressure 100#/425F. Replaces SG24, H1-24 Purchased in 6 packs.
Crown Engineering
58GG24-06
$4.54
EA
$10.75
33 In Stock
58RL12-12 Crown 58rl12-12 5/8 inch OD X 12 inch Redline
5/8 inch OD X 12 inch Redline sight glass. SGRL Maximum working pressure, water: 150 degrees 335 psi, steam: 425f 280 psi PURCHASED INDIVIDUALLY. H4-12 IS A 12 PACK. H4-13 IS AN IND. PIECE. Replaces SGRL-12
58RL12-12
$20.24
EA
$47.95
57 In Stock
58RL24-12 Crown 58rl24-12 5/8 inch OD X 24 inch Redline
5/8 inch OD X 24 inch Redline sight glass. SGRL Maximum working pressure, water: 150 degrees 335 psi, steam: 425f 280 psi
Crown Engineering
58RL24-12
$41.58
EA
$98.51
31 In Stock
58RL36 Crown 58rl36 5/8 inch OD X 36 inch Redline
5/8 inch OD X 36 inch Redline sight glass. SGRL Maximum working pressure, water: 150 degrees 335 psi, steam: 425f 280 psi
Crown Engineering
58RL36
$66.88
EA
$156.88
13 In Stock
$32.59
EA
$92.23
Not in stock
60-101 Mcdonnell & Miller Casting for 61, 63, 64 and 65
Casting for 61, 63, 64 and 65 Series Low Water Cut Offs
McDonnell & Miller
60-101
$83.33
EA
$239.22
Not in stock