CVS Controls P37 User manual

CVS P37 LP Gas
Reducing Regulator
The CVS Controls P37 Regulator is a
non-relieving, pressure reducing
regulator suitable for use in LP gas
applications (Natural Gas and
Propane). As well as standard
compressed air applications.
Features:
The balanced pintle design of the CVS
P37 Regulator eliminates unwanted
changes in the outlet pressure, due to
inlet pressure variances.
Typical applications include:
-Compressed Air
-Actuators
-Valve Positioning
-Pneumatic Pressure Controllers
-Fuel Gas
CVS P37 LP Gas Regulator
Head Office
3900 101 Street
Edmonton, Alberta
T6E 0A5
Canada
Office: [phone]
Fax: [phone]
Calgary Sales Office
3516 114 Avenue SE
Calgary, Alberta
T2Z 3V6
Canada
Office: [phone]
Fax: [phone]
Website: www.cvs-controls.com Email: [e-mail]
INSTRUCTION MANUAL

Specifications: CVS P37
Maximum Inlet Pressure: 400 PSIG (28 Bar)
Inlet/Outlet Port Size: 3/4”, and 1/2"
Adjustments: T Handle Standard
Construction: Aluminum, Plated Steel,
Buna-N, Brass, Zinc
Diaphragm Material: Nitrile/Polyester
Fabric
Temperature Range: -40oF to 200oF (-40oC
to 93.3oC)
Approximate Shipping Weight: 1.4lbs
(0.63Kg)
Maximum Heat: Liquid Propane Gas
Capacity in BTU/H: 1/2", 27,000,000; 3/4",
30,000,000
Outlet Pressure Range: 0-60 PSIG*
*Note: The recommended operating range
is between 10% and 100% of the
adjustment range. Although the regulator
may be shutoff, it is not intended for use in
applications below 3 PSIG
Max Flow Capacity: (at max range)
180 SCFM, Air Ps @140 PSIG for 1/2"
200 SCFM, Air Ps @140 PSIG for 3/4"
Installation:
It is recommended that only qualified or authorized personnel install and maintain the CVS P37
regulator.
Prior to installing, make sure there is no damage to the regulator, as well as foreign debris in all
tubing or piping connections to the installation.
Ensure proper safety procedures are adhered to during installation and maintenance.
It is recommended that the CVS P37 Regulator be installed as close as possible to the supply
instrument.
The CVS P37 may be installed at any angle without affecting performance.
Ensure the proper flow direction is used to prevent internal damage to the regulator. The flow
direction is marked on the regulator body assembly as IN and OUT.
Apply a small amount of piping compound to the threads of the inlet and outlet piping.
Prior to startup, relieve all pressure on the spring by turning the T-Handle counter clockwise. Once
supply pressure is applied to the regulator, test for leakage on all installation fittings.
To put the CVS P37 into service, slowly turn the T-Handle clockwise until the desired downstream
pressure has been achieved. Tighten the locknut on the T-Handle to finalize installation.
Periodic inspection and maintenance may be required. If inspection reveals any issues, remove from
service and repair or replace as required.
Contact a CVS Controls representative for more information.
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Note: The CVS P37 Regulator is a non-relieving regulator. The use of a relief valve is
recommended in the installation. Additionally the P37 cannot exhaust excess pressure at the
regulator assembly. It may be require to cycle downstream flow in order to achieve an
accurate output pressure.
Repair and Maintenance:
Refer to the assembly drawing for part identification to assist with the following instructions.
Disassembly:
1. Remove all spring pressure by turning the T-Handle (1) counter clockwise.
2. Remove Qty. 6 , screws (18) holding the Spring Case (2) and the Body Assembly (7)
together. Lift off the spring case, and remove the Spring (4), and Upper Spring Seat (3)
3. Unscrew the Diaphragm Assembly from the Driving Pintle (9), by first removing the
Bottom Plug (12), O-Ring (13), and Pintle Spring (11). Holding the Piston Assembly (10),
loosen the diaphragm assembly using a ¾” wrench or similar. Lift out the diaphragm
assembly from the regulator body.
Inspect all components for visible damage and replace or repair as necessary.
Reassemble in reverse order.
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Dimensional Data: Inches
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CVS P37 Assembly:
Item
Part Number
Description
Item
Part Number
Description
1
CVS P3700001
Adjusting Screw Assembly
11
CVS P3700011
Pintle Spring
2
CVS P3700002
Spring Case Assembly
12
CVS P3700012
Bottom Plug
3
CVS P3700003
Upper Seat Spring
13
CVS P3700013
o-ring, #025
4
CVS P3700004
Spring
14
CVS P3700014
o-ring, #012
5
CVS P3700005
Lower Seat Spring
15
CVS P3700015
Quad Ring, #012
6
CVS P3700006
Diaphragm
16
CVS P3700016
Hex Nut, 1/2-13
7
CVS P3700007
Body Assembly , 1/2-14 Port
17
CVS P3700017
Hex Nut, 5/16-24UNF
CVS P3700107
Body Assembly, 3/4-14 Port
18
CVS P3700018
RH Screw, 8x32, .87” long, (6ea)
8
CVS P3700008
Diaphragm Screw
19
CVS P3700019
1/4" NPT Plug, (2ea)
9
CVS P3700009
Driving Pintle
10
CVS P3700010
Piston Assembly
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Notes:
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Notes:
CVS Controls Ltd. strives for the highest levels of quality and accuracy. The information included in this publication is presented for
informational purposes only. CVS Controls Ltd. reserves the right to modify or change, and improve design, process, and specifications
without written notice. Under no circumstance is the information contained to be interpreted to be a guarantee/warranty with regard
to our products or services, applicability or use.
Selection, use and maintenance are the sole responsibility of the end user and purchaser. CVS Controls assumes no liability for the
selection use and maintenance of any product.
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Head Office
3900 101 Street
Edmonton, Alberta
T6E 0A5
Canada
Office: [phone]
Fax: [phone]
Calgary Sales Office
3516 114 Avenue SE
Calgary, Alberta
T2Z 3V6
Canada
Office: [phone]
Fax: [phone]
Website: www.cvs-controls.com Email: [e-mail]
June 2014
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