Products
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  • HSP-400x400
  • HSP-A-400x400
  • HSP-B-400x400
Technical Specification
  
Size1 1/2"
Connection150# FLG
Max. Operating Pressure (psig)450
Max. Operating Temperature650˚F
Max. Allowable Pressure (psig)550 PSIG @ 650˚F
Max. Allowable Temperature650˚F @ 550 PSIG
Inlet Pressure Range5 - 20
Minimum Differential Pressure3 PSIG
Material Specification
  
BodyASTM A-216 GR WCB
CoverASTM A-216 GR WCB
Diaphragm CoverASTM A-216 GR WCB
PilotASTM A-216 GR WCB
GasketGarlock 3400/grafoil SLS
Seat420F Stainless Steel
Disc420F Stainless Steel
DiaphragmBronze
Diaphragm ChamberEPDM
Mfg. BoltsSA-193,GR B7
Spring302 SS
Stem416SS
HSP-16-F150-R-LP
QTY :
Product Overview
The HSP Series Main Valve with integral Pressure Pilot reduces steam pressure in steam system piping mains and process applications. This pilot-operated regulator is specifically used in applications where the properties and benefits of Cast Steel are desired and/or specified. Using steel as the material of construction for the main valve body extends the pressure-temperature rating of the regulator. A unique two-bolt pilot adapter design and field-reversible tubing offer even greater versatility to this type of regulator, further reducing maintenance downtime. These valves share the same design and proven reliability of the Watson McDaniel HD-Series Regulators, providing extremely accurate control of downstream system pressure even when inlet pressure to the regulator fluctuates or steam usage varies.
Features
• Cast Steel body for higher pressure and temperature ratings
• New, convenient bolt-on pilot design simplifies installation
• New diaphragm design improves performance and extends life
• Hardened stainless steel trim for extended life
• Optional Stellite trim available
• Full port strainer and blowdown valve on pilot adapter for ultimate protection from dirt and scale
• Maintains downstream pressure to ±1.0 PSIG
• Choice of three overlapping spring ranges
• Pre-mounted pilot & tubing simplifies installation
Dimension and Weights

Installation and Maintenance

Pilot Mounting
Standard pilot mounting is on the right side of the regulator when looking into the outlet port. For opposite-mounting, specify when ordering. Pilot mounting on HSP regulators are field-reversible.

Pressure Pilot
The spring-adjusted Pilot is used for general purpose pressure reducing applications.