Thread End - Series: 07

Size: 1" thru 4"
Operating Temperature: To 225°F with standard materials
To 300°F with optional materials
Maximum Differential: 5 psi
Maximum Containment: 25 psi

Design Standard

The PDC “Thread End” Series Butterfly Valve is available in sizes from 1″ thru 4″.

Specifications

Size Range:
1" thru 4"
Temperature:
To 225°F with standard materials
To 300°F with optional materials
Body Style:
Female Threaded Pipe

Design Features

  • Simplicity of construction
  • Close tolerance angle seated disc machining for minimal leakage.
  • Thread end construction provides maximum economy by eliminating need for mating flanges.
  • Thread end valves can be customized for electric and pneumatic actuation.

Applications

  • Blower Equipment
  • Compressor Equipment
  • Boiler Equipment
  • Environmental Systems
  • V.A.C
  • Industrial Process Furnaces
  • Oil Gas/Refining
  • Power Generation/Co-Generation
  • Water & Sewage
  • Stationary Engines
  • Chemical Equipment
  • Mining Equipment
  • Gas Recovery Systems

Standard Materials and Seat Construction

Body:Cast Iron
Disc:Carbon Steel
Shaft:Stainless Steel
Seals:EPT O-Rings
Seat:Angle

Optional Materials and Seat Construction

Seals:Viton O-Rings suitable for temperatures to 300°F
Seat:Swing Thru

Chart or Graph

Typical Dimensions: 1″ thru 4″

Style A
Thumb screw friction lock permits an infinite number of disc positions.

Style C
Locking handle friction lock permits an infinite number of disc positions.

Size (NPT)ABCDEFApprox. Wt. (Lb)
11.042-3/41-1/21-9/162-1/22-7/83.5
1-1/21.62-3/41-1/21-9/162-1/22-7/83
22.042-7/81-5/81-11/162-7/83-5/84
2-1/22.443-5/82-1/1623-1/245
33.043-7/82-3/82-11/164-1/84-3/46
44.024-1/22-7/82-15/165-1/85-5/1610

MAX ∆P is 5 PSI. MAX containment pressure is 25 PSI

Cv Values for PDC Thread End Series Valves

By definition, Cv is the flow coefficient of a control device or flow restriction. Cv is defined as the number of US gallons of 60°F water per minute which will flow through the given restriction with a one pound per square inch pressure drop.n restriction with a one pound per square inch pressure drop.

Cv Values

(Flow in GPM of 60°F water at 1 psi pressure drop Specific Gravity=1)

VALVE SIZEDisc Angle, Degrees
102030405060708090
113.58121620324245
1.52.14.5917315180137219
23.5715275183130222355
2.54.910223973119186317508
38163461113185289493789
41328601061983235058621380