BVA Hydraulics CVR3 User Manual

Pressure Relief Valve

Instruction Manual

MODEL: CVR3

SFA Companies 10939 N. Pomona Ave. Kansas City, MO 64153

Tel: [phone] * Fax: [phone]

E-mail: [e-mail] Website: www.bvahydraulics.com

This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.

!

Maximum Operating Pressure 10,000 PSI

CVR3-M0_012013

Printed in Taiwan

SAFETY AND GENERAL INFORMATION

Save these instructions. For your safety, read and

understand the information contained within. The owner and
operator shall have an understanding of this product and safe
operating procedures before attempting to use this product.
Instructions and safety information shall be conveyed in
the operator’s native language before use of this product
is authorized. Make certain that the operator thoroughly
understands the inherent dangers associated with the use
and misuse of the product. If any doubt exists as to the safe
and proper use of this product as outlined in this factory
authorized manual, remove from service immediately.

Inspect before each use. Do not use if leaking, broken, bent,
cracked or otherwise damaged parts are noted. If the valve
has been or suspected to have been damaged, discontinue
use until checked out by a BVA Hydraulics authorized
service center. Owners and operators of this equipment
shall be aware that the use and subsequent repair of this
equipment may require special training and knowledge.
It is recommended that an annual inspection be done by

qualied personnel and that any missing or damaged parts,

decals, warning/safety labels or signs be replaced with BVA
Hydraulics authorized replacement parts only. Any relief valve
that appears to be damaged in any way, is worn or operates
abnormally shall be removed from service immediately until
such time as repairs can be made.

PRODUCT DESCRIPTION

BVA Hydraulics Pressure Relief Valve limits pressure
developed by the hydraulic pump, regulating the force
imposed on other components. A wide variety of applications
exist for this category of product. Special skill, knowledge and

training may be required for a specic task and the product

may not be suitable for all the jobs described above. The user
ultimately must make the decision regarding suitability of the
product for any given task and therefore accept responsibility
for that decision.

NOTICE Always wear proper personal protective

!

gear when operating hydraulic equipment (i.e. safety
glasses, gloves, etc.)

NOTICE Always check connections before using.

!

Alteration of these products is strictly prohibited. Use
only those equipment and attachments provided and
approved by the manufacturer.

WARNING: To reduce the risk of personal injury and/

!

or property damage, ensure that the rated working
pressure of each pressurized attachment be equal to
or greater than the rated working pressure developed
by the hydraulic pump.

SPECIFICATIONS

Model

Number

CVR3 10,000 3/8”-18 NPTF 7.48” 3.82” 1.50” 2 800 - 10,000

Rated

Pressure

(psi)

Thread

Size

Length

(in)

Operation

Turn the pressure adjustment handle clockwise to increase
pressure setting; counterclockwise to reduce pressure
setting. Pressure range of this deivice is 800 - 10,000
psi.

Width

(in)

Height

(in)

Pressure Adjustment
Handle

Weight

(lbs)

Pressure

Adjustability

(psi)

From Pump

To Cylinder

To Tank

2

! WARNING

• Study, understand, and follow all

instructions provided with and on this
device before use.

• All WARNING statements must be

carefully observed to help prevent
personal injury.
No alteration shall be made to this

•

device.

• Always wear protective gear when

operating hydraulic equipment.

• Keep hydraulic equipment away from
ames and heat. Hydraulic uid can

ignite and burn. Do not operate if
leaks are detected.

•

Crush Hazard. Keep hands and
feet away from loading area. Avoid
pinch points or crush points that can
be created by the load or parts of
cylinder.

•

To avoid crushing and related injuries:

NEVER work on, under or around

a lifted load before it is properly
supported by appropriate mechanical
means. Never rely on hydraulic
pressure alone to support load.

HYDRAULIC CYLINDERS

•

The user must be a qualied operator familiar with the

correct operation, maintenance, and use of cylinders. Lack of
knowledge in any of these areas can lead to personal injury.

• Do not exceed rated capacity of the cylinder or any

equipment in the system.

• Burst hazard exists if hose or connection pressure exceeds

rated pressure.

•

Inspect cylinder, hoses and connections before each use to

prevent unsafe conditions from developing. Do not use if
they are damaged, altered or in poor condition. Do not use a
cylinder with bent or damaged coupler or damaged threads.

•

Use gauge or other load measuring instrument to verify load.

• Do not subject the cylinder to shock loads.

• Never attempt to disconnect hydraulic connections under

pressure.

•

Use only approved accessories and approved hydraulic uid.

•

Never attach ANY component not authorized by manufacturer.

• Never use other than factory provided and/or authorized

fasteners.

• Under certain conditions, the use of an extension with a

hydraulic cylinder may not be advisable and could present
a dangerous condition.

• Cylinder must be on a stable base which is able to support

the load while pushing or lifting. Ensure cylinder is fully
engaged into/onto adapters, extension accessories.

• Use shims, friction material or constraints to prevent slippage

of the base or load.

• Distribute the load evenly across

the entire saddle surface. Do not
off-center loads on a cylinder.
The load can tip or the cylinder
can “kick out”.

• This device is not suitable for use as support device! As the

load is lifted, use blocking and cribbing to guard against a
falling load.

• All personnel must be clear before lowering.

• Never try to disassemble a hydraulic cylinder, refer repairs
to qualied, authorized personnel.

HYDRAULIC HOSES & FLUID TRANSMISSION LINES

• Avoid short runs of straight line tubing. Straight line runs

do not provide for expansion and contraction due to
pressure and/or temperature changes.

• Reduce stress in tube lines. Long tubing runs should be

supported by brackets or clips. Before operating the pump,
tighten all hose connections with proper tools. Do not
overtighten. Connections should only be tightened securely
and leak-free. Overtightening can cause premature thread

failure or high pressure ttings to burst.

• Should a hydraulic hose ever rupture, burst or need to be

disconnected, immediately shut off the pump and release
all pressure. Never attempt to grasp a leaking pressurized

hose with your hands. The force of escaping hydraulic uid
can inict injury.

• Do not subject the hose to potential hazard such as re,

sharp objects, extreme heat or cold, or heavy impact.

• Do not allow the hose to kink, twist, curl, crush, cut or bend
so tightly that the uid ow within the hose is blocked or

reduced. Periodically inspect the hose for wear.

• Do not pull, position or move setup by the hose.

• Hose material and coupler seals must be compatible with
hydraulic uid used. Hoses also must not come in contact

with corrosive materials such as battery acid, creosote­impregnated objects and wet paint. Never paint a coupler
or hose.

•

FAILURE TO HEED THESE WARNINGS MAY RESULT IN

PERSONAL INJURY AS WELL AS PROPERTY DAMAGE.

Center load on cylinder

3

LIMITED LIFETIME WARRANTY

BVA Hydraulics®, represented in the United States by SFA Companies [“SFA”] warrants this product to be free from defects in
material and workmanship for the life of the product as long as the original purchaser owns the product. The warranty is non­transferable and is subject to the terms, exclusions, and limitations described below:

• Damaged components, including but not limited to bent rams, dented or crushed cylinder walls, broken welds or couplers as

well as worn out seals, o-rings and springs are the result of misuse and not covered by warranty and BVA Hydraulics will not
provide any warranty credit for such damaged components.

• This warranty does not cover ordinary wear and tear, overloading, alterations (including repairs or attempted repairs not
performed by BVA Hydraulics or one of its authorized personnel), improper uid use, or use of the product in any manner for

which the product was not intended or the use of which is not in accordance with the instructions or warnings provided with
the product.

• In the unlikely event that a BVA Hydraulics product fails due to material defect in workmanship, you may contact SFA for

disposition. In such cases, the customer’s sole and exclusive remedy for any breach or alleged breach of warranty is limited
to the repair or replacement of the defective product.

• Under no circumstances is BVA Hydraulics liable for any consequential or incidental damage or loss whatsoever.

• THIS WARRANTY IS LIMITED TO NEW PRODUCTS SOLD THROUGH AUTHORIZED DISTRIBUTORS AND OTHER
CHANNELS DESIGNATED BY BVA HYDRAULICS. NO AGENT, EMPLOYEE OR OTHER REPRESENTATIVE OF BVA
HYDRAULICS IS AUTHORIZED TO MODIFY THIS WARRANTY.

• THE FOREGOING IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES, INCLUDING

BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FOR A FITNESS FOR A PARTICULAR
PURPOSE.

• Components not manufactured by BVA Hydraulics including certain motor systems, gasoline engines, and other are not

covered by this warranty and instead are covered by the manufacturer’s separate manufacturer’s warranty provided in the
package.

• BVA Hydraulics’ liability in all cases is limited to, and will not exceed the purchase price paid for the product.

SFA Companies
10939 N. Pomona Ave. Kansas City, MO 64153
Tel: [phone]
E-mail: [e-mail]

4