Flowserve CL94 Series Three-Piece Chlorine Ball Valve 1/2-2 - Manual

Worcester Controls
CAUTION: Flowserve recommends that all product which must be
stored prior to installation be stored indoors, in an environment
suitable for human occupancy. Do not store product in areas where
exposure to relative humidity above 85%, acid or alkali fumes,
radiation above normal background, ultraviolet light, or
temperatures above 120°F or below 40° F may occur. Do not store
within 50 feet of any source of ozone.
INSTALLATION
A. Standard CL94 Series three-piece and flanged one-piece valves
may be installed for flow or vacuum in either direction. Use care
to exclude pipe sealants from the valve cavity. The Chlorine
Institute recommends that the relief hole in the ball be upstream,
towards the pressure source. An arrow stamped on the body or
on a metal tag welded to the body indicates preferred flow
direction. The valve will seal in either direction. Note that the
maximum pressure rating is 300 psi for three-piece valves and
ANSI Class 300 one-piece valves, and 150 psi for ANSI 150 one-
piece valves per the Chlorine Institute.
B. When installing CL94 flanged one-piece valves, use standard
gaskets suitable for the specific service. Tighten flange bolts or
studs evenly. Follow ANSI standards for flange bolt torque.
C. For Weld End Valves (SW, BW):
NOTE: Prior to welding, THOROUGHLY CLEAN ALL JOINT SURFACES
to prevent contamination.
1. Tack weld the valve in place.
2. Remove three body bolts, loosen the fourth, and swing out
the body with valve open. Close valves. Remove the ball and
one-piece seat/body seals.
3. Swing body in and secure it with one additional body bolt
diagonally from first.
4. Weld pipe ends. When gas welding, DO NOT play flame on
the valve body.
5. Allow the valve to cool. Reassemble the valve.
6. Tighten and torque the body bolts of the valve evenly and
diagonally opposite each other, alternating in a criss-cross
pattern. Use the torque figures shown:
Carbon Steel Bolts
Bolt. Dia. In.-Lbs. Ft.-Lbs.
¹ ₄" 96-120 8-10
⁵ ₁₆" 120-144 10-12
³ ₈" 216-264 18-22
⁷ ₁₆" 480-540 40-45
¹ ₂" 720-780 60-65
Stainless Steel and Alloy 20 Bolts
Bolt. Dia. In.-Lbs. Ft.-Lbs.
¹ ₄" 72-94 6-8
⁵ ₁₆" 120-144 10-12
³ ₈" 192-216 16-18
⁷ ₁₆" 336-384 28-32
¹ ₂" 504-552 42-46
D. CAUTION
The fluoropolymer body seal makes an excellent seal.
However, some points of caution in its use need emphasizing:
1. No fluoropolymer part (except a seat) is reusable. Upon
disassembly of the valve, they should be discarded and
replaced with new parts.
2. Care must be taken to avoid scratching or damaging the
fluoropolymer during installation. Light lubrication of these
seals can help to prevent damage.
NOTE: Only three-piece valves use a one-piece seat/body seal.
06959-G
¹ ₂
" – 2" CL94 Three-Piece Chlorine Ball Valves
¹ ₂
" – 4" CL94 150/300 Flanged One-Piece
Chlorine Ball Valves
Installation, Operation and Maintenance Instructions