FW MURPHY CV14 Control Valve Owner’s Manual
- September 20, 2024
- FW MURPHY
Table of Contents
FW MURPHY CV14 Control Valve
Specifications
- Body: A216 WCC steel
- Packing Plug: A105 steel zinc plated
- Trim:
- Standard: 440C stainless ball / D2 tool steel seat
- Corrosive: 316 stainless ball / 316 stainless seat
- Stem: 304 stainless
- Actuator Housing: Ductile iron
- Approximate Weight: 27 lbs
Product Usage Instructions
Installation
- Identify the appropriate location for the CV14 control valve in your system.
- Ensure that all connections are secure and leak-free.
- Follow the manufacturer’s guidelines for proper installation and alignment.
Maintenance
The CV14 control valve is designed for easy maintenance. Follow these steps to
ensure proper upkeep:
- Regularly inspect the valve for any signs of wear or damage. If maintenance is required, the topworks can be removed without taking the valve out of line.
- Refer to the user manual for specific maintenance procedures.
Operation
To operate the CV14 control valve
- Adjust the valve settings as needed based on your system requirements.
- Monitor the valve’s performance regularly to ensure optimal operation.
FAQ
How do I determine the appropriate CV14 model for my application?
To select the right CV14 model, consider factors such as body type, actuator
type, spring pressure, materials, seals, and trim size. Refer to the How to
Order section in the user manual for guidance on model selection. What are the
shut-off pressures for the CV14 control valve?
The shut-off pressures vary based on the trim size and actuator type. Refer to
the Shut-Off Pressures section in the user manual for detailed information on
maximum shut-off pressures for both reverse-acting and direct-acting
actuators.
Control Valve CV14 Model
The CV14 is a rugged, compact control valve fea-turing a 1” body and field
reversable actuator. Typical installations include separators, scrubbers,
treaters and other production vessels.
The CV14 makes maintenance easy by allowing the topworks to be removed without
taking the valve out of line. Its hardened trim is available in a variety of
sizes.
Dimensions (inches)
Specifications
- Connection: 1” female NPT
- Body Type: Globe, angle
- Trim Characteristic: Modified percent (throttling)
- Trim Size: 0.125”, .188”, .25”, 0.375”, 0.50”
- Stem Travel: .50”
- Pressure Rating: 4000 psi
- Temperature Range: -20° F to 400° F (-29° C to 204° C)
- Shutoff: ANSI Class IV
- Actuator Size: No. 30 (30 in2 area)
- Input Signal Range: 4 – 20 psi
- Materials:
- Body: A216 WCC steel,
- Packing Plug: A105 steel zinc plated
- Trim:
- Standard: 440C stainless ball / D2 tool steel seat
- Corrosive: 316 stainless ball / 316 stainless seat
- Stem: 304 stainless
- Actuator Housing: Ductile iron
- Approximate Weight: 27 lbs
Cv Values
Cv Values at 100% Open
Trim Size (in.)| Trim Type
Throttling
.125| 1.1
.188| 1.5
0.25| 2.0
0.375| 3.2
0.50| 6.5
In order to consistently bring you the highest quality, full-featured
products, we reserve the right to change our specifications and designs at any
time.
FW MURPHY product names and the FW MURPHY logo are proprietary trademarks.
This document, including textual matter and illustrations, is copyright-
protected with all rights reserved. (c) 2024 FW MURPHY. A copy of our typical
warranty may be viewed or printed by going to
www.fwmurphy.com/warranty
Shut-Off Pressures
Reverse-Acting Maximum Shut-Off Pressures
Max Shut-Off Pressures for Reverse-Acting (Fail Closed) Actuators
Trim Size (in)| Flowing Up| Flowing Down
20 psi Spring| 20 psi Spring
15 psi| 20 psi| 25 psi| 30 psi
0.25| 3328| 4000| 4000| 4000| 4000
0.375| 1696| 4000| 4000| 4000| 4000
0.50| 823| 1575| 2682| 3789| 4000
Direct-Acting Maximum Shut-Off Pressures
Max Shut-Off Pressures for Direct-Acting (Fail Open) Actuators
Trim Size (in)
| Flowing Up| Flowing Down
20 psi Spring| 20 psi Spring
20 psi| 25 psi| 35 psi
0.25| 150| 2586| 4000| 4000
0.375| N/A| 1293| 3939| 4000
0.50| N/A| 608| 2020| 4000
How to Order
Options are listed below. All configurations may not be available. Call your
sales representative or FW Murphy for more information. Repair kits are
available.
Example Model No. CV14-GR1-CB-21
CV14 Series Control Valve, Globe Body, Reverse Actuator, 10 psi spring, Carbon
Steel with Buna Seals, 0.25” Standard Trim
FW Murphy is the exclusive BMD distributor for new equipment packages.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>