Medium Pressure - Double Window - Threaded


Plain
- No indicator. For direct visual inspection of liquid. Mounts in any direction.
Model   Body Material
  020     Carbon Steel

  130     Bronze
  170     316 Stainless
  180     Iron

For Higher Pressure Models add HP to Model Number. Example: 020HP

Rotator -
Paddlewheel indicator used for clear media to enhance flow indication. Any direction.
Model   Body Material
  021     Carbon Steel
  131     Bronze
  
171     316 Stainless
  181     Iron

For Higher Pressure Models add HP to Model Number. Example: 021HP

Mid-Flapper
- Mid-flapper to indicate flow in either direction. Not for vertical flows down.
Model   Body Material
  022     Carbon Steel

  132     Bronze
  172     316 Stainless
  182     Iron

For Higher Pressure Models add HP to Model Number. Example: 022HP

Drip Tube
- Designed for very low flows so fluid drips off tube insert. Mainly vertical mounts.

Model   Body Material
  023     Carbon Steel

  133     Bronze
  173     316 Stainless
  183     Iron


For Higher Pressure Models add HP to Model Number. Example: 023
HP
Features
• Sizes 1/4" to 2" NPT
• Bolt-On Body Design
• Radial Sealing
• Socketweld Available
• Shields Available

Ratings*
• Medium Pressure Rated
    200 psi @ 150F
    150 psi @ 225F
• Higher Pressure Rated     (HP)
    400 psi @ 150F
    200 psi @ 350F

 Materials (Wetted)
• Medium Pressure Rated
   Glass: Temp Soda Lime
   Seals: Neoprene
                Viton
®* in 316SS
   Rotator/Flapper: Delrin
®*
   Bridge/Pin: 316SS

• Higher Pressure Rated    (HP)
   Glass: Temp Borosilicate
   Seals: Viton
®*
   Rotator/Flapper: Ryton
   Bridge/Pin: 316SS

 *Temperature ratings are dependent   on Seal material.

   Drip Tube material may be either 316SS or
   Teflon.

Note: Not applicable for steam service. See page 4 and 5.

Unit
Size
Dimensions in Inches & (cm)
A B C D Wt lbs
1/4,3/8
1/2
3-5/8 1
(9.2)
1-1/8
(2.9)
2
(5.1)
2-3/8
(6.0)
2
3/4
1
4-1/4 2
(10.8)
1-1/2
(3.8)
2-9/16
(6.5)
3-1/4
(8.3)
3
1-1/4
1-1/2
5-5/8 3
(14.3)
2
(5.1)
3-5/16
(8.4)
4-5/16
(11.0)
6
2 5-5/8 4
(14.3)
2
(5.1)
3-5/16
(8.4)
4-5/16
(11.0)
6
Exceptions to "A" above for Bronze: 1 3-1/4, 2 4-1/8, 3 5-1/4, 4 5-1/2

*Viton®
is a registered trademark of DuPont Dow Elastomers
*Delrin® and Teflon®  are registered trademarks of DuPont 
Catalog  Page 7

 

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John C. Ernst Co., Inc.
Sparta, NJTel: 973-940-1600Fax: 973-940-1620
Toll Free: 1-888-463-7678

Email: info@johnernst.com

Mailing Address
21 Gail Court
Sparta, NJ 07871
Physical Address
21 Gail Court
Sparta, NJ 07871