Description

‘ED’ Series – Pilot Operated Pressure Regulating Valve

Spence Engineering’s principal valve is the single seat, normally closed, E Main Valve. The E Main meets the requirements of a large majority of regulator installations as it can be controlled by various types of interchangeable pilots. Spence regulators are known for their universal adaptability, accurate regulation, dependable service and low maintenance costs.

Some of the key advantages of a Spence Regulator are:
• Virtually Frictionless for Long Service Life
• Easy In-Line Maintenance
• ANSI/FCI 70-2 Class IV Shutoff
• Packless construction
• Trim Options Available for Precise Sizing
• Great for Fluid, Gas, and Vapor Applications
• Protected springs
• Normally Closed
• Wide Variety of Pilots for Many Applications

TYPE ‘ED’ PRESSURE REGULATOR

Pressures To 600 PSIG
Temperatures to 750°F

Applications
● Pressure Regulation for Steam Distribution
● Single Point or Multiple Use Applications
● Pressure Control for Steam Plants
● District Heating Systems
● Single Stage Reduction Stations
● Two Stage Reduction Stations
● Parallel Reduction Stations

Springs Outside Steam Path
assure exceptionally long life on both Main Valve and Pilot

Easy Inspection

provided by external diaphragm loading steam passages

Guaranteed Dead End Shutoff
meets Class IV in steam service, even on large sizes

Patented SECOWELD Option
allows easy repair of seat ring threads damaged by high pressure applications

E Valve Ratings

D Pilot Description

Type D Pilot

CONTROLS 3 to 300 PSIG
● Self Contained
● Spring Operated
● Normally Closed
● Packless Construction
● Fluid, Gas & Vapor Applications
● Accurate Regulation Unaffected by
Service Conditions
● Easy In-line Maintenance

MODELS
● TYPE D for ±1 psi control of delivery pressures between
3 and 150 psi.
● TYPE D2 for ±2 psi control of delivery pressures
between 100 and 300 psi.
● TYPE D5 for ±1/2 psi control of delivery pressures
between 1 and 25 psi.
● TYPE D120 for exceptionally fast response controlling
delivery pressures between 5 and 150 psi.

OPTIONS
● Spring Chamber ● Adjusting Handwheel
● Composition Disc ● Integral Mount Body
● Vacuum Spring Assembly
TYPICAL CONFIGURATIONS
PRESSURE REDUCING ……………………TYPE ED
PRESSURE REDUCING …………………TYPE E2D
PRESSURE REDUCING …………………TYPE E5D
PRESSURE REDUCING …………………TYPE E6D
WATER PRESSURE REDUCING…………TYPE C34D
TEMPERATURE & PRESSURE…………TYPE ET14D
TYPE D PRESSURE PILOT

APPLICATION DATA
● Pressure Regulating for Steam Distribution
● Regulating for Process Control
● Can be used with Temperature Pilot to Regulate Pressure on
Temperature control Application