• All Products
• Apollo Conbraco
  • All Apollo Conbraco
  • 10-600 SERIES
  • 12-200 SERIES
  • 13-200 SERIES
  • 14-200 SERIES
  • 19 SERIES
  • 29 SERIES
  • Apollo T&P Relief Valves
• Asco
  • All Asco
  • Electric Pilots
• Barksdale
  • All Barksdale
  • Pressure Switches
• Clearance
  • All Clearance
  • 31015
  • Model 20
  • Model 6000
  • Thermostatic Steam Traps
  • Velan Steam Trap
• Cybertor Enterprises
  • All Cybertor Enterprises
  • Annunciators
• GC Valves
  • All GC Valves
  • Solenoid Valves
• Heat-Timer
  • All Heat-Timer
  • 2-Way & 3-Way Motorized Valves
  • Accessories
  • Communications Upgrade
  • Digital Set Point Controls
  • ETV Platinum Plus Tempering Valves
  • ETV Platinum+ Tempering Valves with BACnet
  • ETV Platinum+ Tempering Valves with MODBUS
  • Extension Modules
  • Hydronic Heating Controls
  • Modulating Controls
  • Motorized Valves
  • Motorized Valves for Vacuum Heating Systems
  • Parts-Heat-Timer
  • Remote Communication Accessories
  • Safeguard Shut-Off Valve for ETV Platinum
  • Sensors
  • Sequencing
  • Snow Melt Controls
  • Steam Heating Controls
  • VARIVALVE Radiator Air Vents
• Kunkle
  • All Kunkle
  • Model 1
  • Model 19
  • Model 2
  • Model 20
  • Model 218
  • Model 228
  • Model 299
  • Model 30
  • Model 300
  • Model 337
  • Model 537
  • Model 548
  • Model 600
  • Model 6000
  • Model 6252
  • Model 6254
  • Model 900
  • Model 930
• Macon Controls
  • All Macon Controls
  • Macon Electric Zone Valve Actuator
  • Macon Non-Electric Actuators
  • Macon Non-Electric ENT Series Actuators
  • Macon Non-Electric MTW Series Actuators
  • Macon One-Pipe Steam OPSK
  • Macon Replacement Inserts
  • Macon Valve for NT series Operator
• Nicholson Steam Trap
  • All Nicholson Steam Trap
  • Float & Thermostatic Steam Traps
  • Inverted Bucket Steam Traps
  • Nicholson Sanitary Clean Steam
  • Nova NFT250 Series
  • Parts-Nicholson
  • Piping Specialties
  • Thermodynamic
  • Thermostatic Steam Traps
  • Uniflex Unions
  • Universal Mount Steam Traps
• Shannon Enterprises
  • All Shannon Enterprises
  • Insultech
• Spence
  • All Spence
  • Air Operated Pilots
  • Backpressure Pilots
  • Control Valves Electric/Electronic
  • Control Valves-Pneumatic
  • Differential Pilots
  • Direct Operated Valves
  • Drip Pan Elbow-Cast Iron
  • E Main Valves
  • E2 Main Valves
  • Electronic Pilots
  • Fittings
  • Parts-Spence
  • Pilot Operated Steam Pressure Regulators
  • Pressure Pilots
  • Safety Pilots
  • Self-Contained Temperature Regulator
  • Spence Repair Kits
  • Temperature Pilots
• Square D
  • All Square D
  • Float Switches
• Sussman Electric Boiler
  • All Sussman Electric Boiler
  • Parts-Sussman
• Titan Flow Control
  • All Titan Flow Control
  • Basket Strainers
  • Cast Iron Y-Strainers 125# Flanged
  • Cast Iron Y-Strainers 250# Flanged
  • Cast Iron Y-Strainers NPT
  • Cast Steel Y-Strainers 150# Flanged
  • Cast Steel Y-Strainers 300# Flanged
  • Cast Steel Y-Strainers NPT
  • Check Valve-Center Guided-Wafer Type
  • Check Valve-Threaded Ends-Silent Type
  • Foot Valves
  • Stainless Steel Y-Strainers 150# Flanged
  • Stainless Steel Y-Strainers 300# Flanged
  • Stainless Steel Y-Strainers NPT
  • Suction Diffusers
  • Triple Duty Valves
• Tunstall Steam Trap
  • All Tunstall Steam Trap
  • Air Valves
  • Green-Line®
  • Manual Radiator Valves
  • Thermostatic Radiator Traps
  • Tools
  • Tunstall Capsules for Armstrong Radiator Traps
  • Tunstall Capsules for Barnes & Jones Radiator Traps
  • Tunstall Capsules for Cashin/Thermoflex Radiator Traps
  • Tunstall Capsules for Dunham Bush Mepco Radiator Traps
  • Tunstall Capsules for Erwell Radiator Traps
  • Tunstall Capsules for Hoffman Radiator Traps
  • Tunstall Capsules for Illinois Radiator Traps
  • Tunstall Capsules for Marsh Radiator Traps
  • Tunstall Capsules for Monash-Younker Radiator Traps
  • Tunstall Capsules for Nicholson Steam Traps
  • Tunstall Capsules for Sarco Radiator Traps
  • Tunstall Capsules for Trane Radiator Traps
  • Tunstall Capsules for Tunstall Radiator Traps
  • Tunstall Capsules for Warren Webster Radiator Traps
  • Tunstall Gaskets
  • Tunstall Repair Kits for Armstrong F&T Steam Traps
  • Tunstall Repair Kits for Barnes & Jones (Orig.) F&T Steam Traps
  • Tunstall Repair Kits for Barnes & Jones Inline F&T Steam Traps
  • Tunstall Repair Kits for Dunham-Bush / Mepco F&T Steam Traps
  • Tunstall Repair Kits for Erwell F&T Steam Traps
  • Tunstall Repair Kits for Hoffman F&T Steam Traps
  • Tunstall Repair Kits for Spirax Sarco F&T Steam Traps
  • Tunstall Repair Kits for Spirax Sarco Inline F&T Steam Traps
  • Tunstall Repair Kits for Strong F&T Steam Traps
  • Tunstall Repair Kits for Trane F&T Steam Traps
  • Tunstall Repair Kits for Watson McDaniel F&T Steam Traps
  • Vacuum Breakers
• Warren Controls
  • All Warren Controls
  • Deaerator Components / Overflow Traps
  • Deaerator Components / Vacuum Breaker
  • Deaerator Components/Float Cages
  • Deaerator Components/Lever Valves
  • Merlin Pneumatic Controls
  • Parts
• Watson McDaniel
  • All Watson McDaniel
  • Accessories
  • Air Eliminators
  • Air Operated Pilots
  • Backpressure Pilots
  • Bimetallic Steam Traps
  • Check Valves Stainless Steel
  • Direct Operated Valves
  • Drip Pan Elbow-Cast Iron
  • Electric Condensate Pumps
  • Electronic Pilots
  • Exhaust Heads
  • Flash Tanks ASME Code
  • Float & Thermostatic Steam Traps
  • HD Series Main Valve (20 PSI or Less Inlet)
  • HD Series Main Valves
  • High Capacity Float & Thermostatic
  • HSP Cast Carbon Steel Regulators
  • HSP-SS Pilot Operated Stainless Steel Pressure Regulators
  • In-line Float & Thermostatic
  • Inverted Bucket Trap (with Strainer)
  • Inverted Bucket Trap (without Strainer)
  • Inverted Bucket Trap - Stainless Steel
  • Liquid Drainers
  • Parts - Watson McDaniel
  • Piping Specialties
  • Pressure Motive Pump Kits
  • Pressure Motive Pumps
  • Pressure Pilots
  • Pump Traps
  • Radiator Traps
  • Relief & Back Pressure Valves
  • Self-Contained Temperature Regulator
  • Solenoid Pilots - Electric
  • Steam Trap Repair Kits
  • Steam/Air Moisture Separators
  • Temperature Pilots
  • Thermodynamic
  • Thermostatic Steam Traps
  • Universal Mount Steam Traps
  • Universal Style Connectors
  • Water Pressure Reducing Valves
  • Watson McDaniel Repair Kits
  • Watson McDaniel Tubing Kits

Watson McDaniel HD Main (Low Inlet Pressure) 1¼" NPT

	1¼" Watson McDaniel Low Pressure HD Main Valve (No Pilot) Type HD-Main Valve, Threaded, Normally Closed, Single Seat, EPDM Diaphragm, Protected Main Spring, Easy In-Line Maintenance, Virtually Frictionless for Long Service Life PROUDLY MADE IN THE USA FROM US CASTINGS * Used with Low Inlet Pressures 5-20 PSI * Ductile Iron Body * One Piece Body (No Leaky Body Joint) * Full Port Cv=15.0 * Stainless Steel Trim * Rated 300 PSIG @ 421°F. * Factory Piped Copper Tubings. Saves Time * ANSI/FCI 70-3 Class IV shutoff * FNPT Threaded Ends * LP Spring * EPDM Diaphragm Actuated * Single Seated Steam Pressure Regulator * SKU: HD-15-N-LP Specification Sheet, O & M, Parts Lists Second Pilot Adapter --select-- Single Pilot (add $0.00) Dual Pilot Adapter (add $226.80) Port Size --select-- Full Port (add $0.00) HDR Reduced Port Cv=7.8 (add $31.68) Stainless External Tubings --select-- Standard Copper Tubing (add $0.00) Stainless External Tubing (add $202.50) Insulation/Acoustic Jacket --select-- Not Required (add $0.00) Insulation Jacket (add $232.50)
In stock	Quantity:
Price: $1,184.00