Flowserve Valtek Valdisk Control Valves - Manual

10-1
Valtek Valdisk
Control Valves
Valtek No. 49020
GENERAL INFORMATION
The following instructions are designed to assist in unpacking,
installing and performing maintenance as required on Valdisk
rotary valves. Product users and maintenance personnel should
thoroughly review this bulletin prior to installing, operating, or
performing any maintenance on the valve.
Separate maintenance instructions cover additional features
(such as actuators, positioners, special accessories, fail-safe
systems, etc.) Refer to the appropriate Flowserve Installa-
tion, Operation, Maintenance Instructions when information
on installing, maintaining, troubleshooting, calibrating, and
operating Valtek ® actuators or positioners is required.
To avoid possible injury to personnel or damage to valve
parts, WARNING and CAUTION notes must be strictly
adhered to. Modifying this product, substituting non-
factory parts, or using maintenance procedures other
than outlined could drastically affect performance, be
hazardous to personnel and equipment, and may void
existing warranties.
WARNING: Standard industry safety practices must be ad-
hered to when working on this, or any other, process control
product. Specifically, personal protective and lifting devices
must be used as warranted.
Note: Selecting the proper fastener material is the responsibility
of the customer. Typically, the supplier does not know what
the valve service conditions or environment may be. Valtek's
standard body bolting material is B7/2H. B8 (stainless steel) is
optional for applications above 800 0 F and with stainless steel
or alloy body valves. The customer therefore must consider
the material's resistance to stress corrosion cracking in addi-
tion to general corrosion. As with any mechanical equipment,
periodic inspection and maintenance is required. For more
information about fastener materials, contact your local Valtek
representative or factory.
Unpacking
1. While unpacking the valve, check the packing list against
the materials received. Lists describing the valve and
accessories are included in each shipping container.
2. When lifting the valve from the shipping container, posi-
tion lifting straps to avoid damage to tubing and mounted
accessories. Valves up through 14-inch may be lifted by
the actuator lifting ring. On larger valves, lift the valve
using lifting straps or hook through the yoke legs and
outer end of the body.
3. In the event of shipping damage, contact your shipper
immediately.
4. Should any problem arise, contact your Valtek representa-
tive.
Rev. 04/10