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APV_BLV1_GB-0_012020.indd
Ball Valve
APV DELTA BLV1
Instruction Manual: GB - rev. 0
APV
GB
3. Intended Use
Authorizations and External Approvals
To view the certifications for this and other innovative SPX FLOW
products, visit
https://www.spxflow.com/en/apv/about-us/certifications/
It is within the responsibility of the plant operator to evaluate
and verify the suitability of SPX FLOW products for the intended
purpose and service conditions, as well as to determine and follow
the applicable laws for the intended applications and areas of
application.
4. Mode of Operation
4.1. General information
Smooth valve passage with full opening cross section in the size of
the pipeline nominal diameter.
There are three different valve designs:
-
BLV1-H
ball valve - standard with handle without feedback
-
BLV1-HL
ball valve - with handle and bracket for feedback
-
BLV1-NC
ball valve - controlled by pneumatic actuator
- Due to the use of high quality stainless steel and adequate seal
materials, the BLV1 ball valve is suited for applications in the food
and beverage industries as well as in pharmaceutical and chemical
applications.
Attention!
As the ball valve possesses dead spaces which cannot be cleaned,
it should not be used in product-wetted areas of the food
processing industry!
-
As shut-off element, the ball is fitted in PTFE seats at both sides.
Through the floating position of the ball, in closed position a
movement into the flow direction becomes possible providing for
optimum sealing in the passage
(B and C)
.
- The stem of the ball cock is generally inserted from the inside.
Therefore, a collar being bigger than the bore of the body prevents
the stem from being pressed to the outside. The stem sealing is
taken over by the stem packing which is braced via a threaded
bush.
-
The sealing between body and counterflange to the outside is
effected by the PTFE body seal in standard design.
Note!
The ball cock is not equipped with a separate CIP connection to
clean the existing dead spaces.
- Actuation by pneumatic turning actuator with air connection at
(A)
,
reset by spring force into the limit position
“closed”
.
!
!
A
B
C