PRODUCTS > 334C Instrumentation Ball Valve: 3-Piece Compression Ends; ISO 5211 Direct Mount Pad

Product Description

Pressure & Temperature Chart

Schematic Diagram

Materials and Measurements

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Product Description

Features and Benefits:

  • Dual Pattern ISO 5211 Direct Mount Pad
    No mounting kit needed for automation
    Eliminates exposed moving parts for safer work environment
    Direct drive eliminates play and improves actuator positioning
    Dual pattern pad fits a wide range of actuator sizes

  • High-Cycle, Live Loaded Stem Packing
    Spring energized stem seals self-adjust to compensate for wear, pressure and temperature changes ensuring a leak-tight seal and extending service life

  • O-Ring Stem Bearing
    Maintains stem alignment
    Reduces packing side-loading and wear
    Enhances stem seal

  • Blow-Out-Proof Stem
    Stem is bottom loaded to prevent removal when valve is in service

  • 3-Piece Design
    Swing-out construction makes the valve easy to repair in line

  • Universal Valve Body
    Same center section can be used for both manual and automated service

  • Locking Device
    Enables plant personnel to secure valve in open or closed position when manually operated

  • Heavy Duty Construction
    Made to full ANSI B16.34 Class 600 dimensions for trouble-free performance over a wide range of service conditions
  • Investment Cast
    High quality investment castings improve dimensional control and reduce porosity; certified material test reports are available upon request

  • Silver Plated Nut
    Reduces galling on threads

  • Heat Treated Ferrules
    Assures continuous tight seals

The 334C Compression Ends ball valve incorporates several innovative design features for improved process performance.  The new dual pattern ISO 5211 mounting pad facilitates direct mounting of pneumatic and electric actuators.  In combination with our high-cycle, live-loaded stem packing system, the 334 series ball valve provides an ideal choice for all your automation requirements.

Operating / Test Conditions:

  • Temperature Range (depending on seats): -20 to 550 F

  • Maximum Working Pressure (depending on seats): 
    3000 PSI CWP (1/4" - 1")

  • All valves built and pressure tested to ANSI/ASME B16.34, MSS-SP-110 and API 598
  • All materials comply with applicable ASTM material specifications

Options:

  • End connections available in FNPT, socket weld, butt weld, and flanged, in 316SS, or carbon steel

  • High Pressure Seats and Seals

  • High Temperature Seats and Seals


Pressure & Temperature Chart



Schematic Diagram


Assembly and Reassemble Instruction

Assembly Instruction

1. Insert the tubing until it rests against the counter bored pipe end

2. Be sure the nut is finger tight, then tighten with wrench an additional 1-1/4 turn

Reassemble Instruction

1. Insert the tubing end with the previously set ferrules into the pipe end

2. Tighten nut by hand. Rotate nut to the original position with a wrench. (An increase in resistance will be encountered at the original position) Then tighten slightly with the wrench

 


Materials & Measurements

Materials List

Item
Part Name
Material
Qty
1
End Cap
A351 Gr. CF8M
2
2
Body Seal
PTFE
2
3
Seat
PTFE
2
4
Ball
316SS
1
5
Body
A351 Gr. CF8M
1
6
Body Nut
304SS
4
7
Body Bolt
304SS
4
8
Thrust Washer
PEEK
2
9
Stem O-Ring
Viton 90
1
10
Stem
316SS
1
11
Stem Packing Set
PTFE
1
12
Packing Gland
304SS
1
13
Belleville Washer
301SS
2
14
Nut Stop
304SS
1
15
Gland Nut
304SS
1
16
Space Washer
304SS
2
17
Lock Washer
304SS
1
18
Handle Nut
304SS
1
19
Handle
304SS
1
20
Handle Cover
Vinyl
1
21
Stop Bolt
304SS
1
22
Half Washer
316SS
1
23
Front Ferrule
316SS
2
24
Back Ferrule
316SS
2
25
Locking Nut
316SS
2

 


DIMENSIONS (Inches)

Size
L
C
D
D1
D2
D3
D4
d1
d2
M
H
h
S
1/4
3.12
3.15
0.45
0.47
1.97
1.42
0.99
0.27
0.24
5.39
1.79
0.39
0.36
3/8
3.12
3.15
0.45
0.47
1.97
1.42
0.99
0.27
0.24
5.39
1.79
0.39
0.36
1/2
3.12
3.15
0.45
0.47
1.97
1.42
0.99
0.27
0.24
5.39
1.79
0.39
0.36
3/4
3.85
3.15
0.57
0.47
1.97
1.42
0.99
0.27
0.24
5.39
1.89
0.39
0.36
1
4.67
3.27
0.81
0.55
1.97
1.65
1.18
0.28
0.24
6.38
1.99
0.43
0.43

*Direct mount with stem adapter bushing

Due to continuous product development, information may change without notice.