Steriflow Mark 93 User Manual

Mark 93TH Series

Sanitary Steam Traps

The Mark 93TH is a balanced port, thermostatic steam
trap designed for use in validated clean steam systems
that use threaded tube fittings or threaded tubing
adapters for connections. The sanitary design includes
a 20Ra µin internal nish, self-draining design, and a

compact size.

The MK93TH is designed with the same bellows as our
MK93, and will therefore allow higher flow rates than
competitive designs. Note: Low subcooling operation
insures that condensate won’t back up and wet (cool)
the upstream validation temperature sensor.

There are two base designs within the MK93TH
product range: the standard MK93TH – good for inlet
pressures (P1) up to 50 psi (3,4 bar), and the MK93TH
Option “P” for the higher inlet pressure associated with
clean steam distribution drainage, or any application
with pressure ranging from 45 – 90 psi (3,1 – 6,2 bar).
Both designs are rated to 90 psi (6,2 bar) operating
pressure but are recommended for use within the
specified inlet pressure ratings.

Mark 93TH Operation

New: Compact Threaded Series

Sanitary Valves Mark 93TH Sanitary Steam Traps

During heat-up, the bellows element is contracted and
fully open to discharge all non-condensable gas and
condensate. As recorded temperature rises, not as
much condensate is formed,and the temperature of
the condensate rises as the level in the upstream tub­ing falls. This causes the bellows element to expand,
closing the valve. As condensate accumulates in the
body, the element cools, causing the bellows/stem tip
to retract allowing condensate to drain.

Features

• Compact size makes it the ideal sanitary trap for
tight fitting process skid applications

• Competitive lay-in dimensions allow in kind
replacement of troublesome existing installations

• Low subcooling operation reduces probability
of temperature validation faults and resultant SIP
delays

• Higher capacities and lower subcooling than com­petitive designs allows faster heat-up.

• All 316L stainless steel housing and
internals

• Polished components – body interior is
mechanically polished to 20Ra finish

• Self draining when installed vertically
(outlet side down)

• Option for electropolished body

Applications

• Typical applications are: temperature
validated sterilization drainage of fermen­ters, bioreactors, separation and filtration
equipment, lyophilizers, autoclaves,
process piping equipment and steam
barriers.

• Condensate drainage from clean steam
distribution lines

STERIFLOWTM by Jordan Valve

3170 Wasson Road • Cincinnati, Ohio 45209

Telephone [phone] • Fax [phone]

Toll-Free Telephone: [phone]

steri[email protected] • www.steriowvalve.com

MK 93TH SaniTary STeaM TrapS

SpecificationS

Sizes: 1/4" (DN8), 3/8" (DN10), 1/2" (DN15), 3/4" (DN20),

1" (DN25)

End Connections

• Standard – NPT

• Optional – BSP, EN ISO 228-1
Material

• Body Inlet/Outlet: 316L Stainless Steel (ASME

SA-479 or ASME SA-351 Gr. CF8M)

• Body outlet: 316L Stainless Steel

• Thermal Element: 316L Stainless Steel

• O-Ring (Standard): Teflon / Viton, FDA US

Class VI

Maximum Operating Conditions

• Maximum Operating Pressure (PMO): 90 psig (6,2 bar)

• Maximum Allowable Temperature (TMA): 350°F (177°C)
Design Pressure/Temperature Rating:

• Maximum Allowable Pressure (PMA): 145 psig

(10,0 bar)

• Maximum Allowable Temperature (TMA): 350°F

(177°C)

Maximum Recommended Differential Pressure:

• MK93TH with Standard Bellows:10 - 50 psig

(0,7 -3,4 bar)

• MK93TH with High Pressure Bellows:50 - 90 psig

(3,4 -6,2 bar)

Cold water Cv: 1.63
Flow Capacity

Steam

Pressure

psig (bar)

10 (0,7) 195 (88) 490 (222) 1127 (511)

20 (1,3) 373 (169) 813 (369) 1697 (770)

30 (2,0) 549 (249) 1142 (518) 2202 (999)

50 (3,4) 870 (394) 1715 (778) 3074 (1394)

75 (5,2) 1012 (459) 2207 (1001) 3932 (1783)

90 (6,2) 1165 (528) 2437 (1105) 4139 (1877)

Lbs/Hr

(Kg/hr) @ 5°

subcooling

Lbs/Hr

(Kg/hr) @ 10°

subcooling

Lbs/Hr

(Kg/hr) @ 20°

subcooling

Cold Water Capacity

Steam Pressure

psig (bar)

10 (0,7) 2580 (1170)

20 (1,3) 3648 (1655)

30 (2,0) 4468 (2027)

50 (3,4) 5768 (2616)

75 (5,2) 6944 (3150)

90 (6,2) 7504 (3404)

Cold Water Lbs/Hr (Kg/Hr)

MK 93TH SaniTary STeaM TrapS

DimenSionS

B

A

C

D

Valve Size

1/4" 2.0 0.38 0.84 2.21
3/8" 2.6 0.47 1.08 2.21
1/2" 2.4 0.50 0.87 2.21
3/4" 2.6 0.57 0.99 2.21

1" 2.9 0.72 1.11 2.21

Valve Size

DN8 50,5 9,6 21,3 56,1
DN10 68,0 11,9 27,4 56,1
DN15 61,0 12,7 22,1 56,1
DN20 68,0 14,1 25,1 56,1
DN25 75m0 18,2 28,1 56,1

A B C ØD

A B C ØD

Dimensions (inches)

Dimensions (mm)

featureS & BenefitS

316L material suitable for
clean steam applications

Standardized bellows capsule
assembly cannot be installed in
the reverse direction

High flow rates with
consistent low sub-cooling

Fully open at startup -
to remove air and condensate

Multiple sizes available

Compact, competitive lay-in
length and great sub-cooling
characteristics make this the
ideal replacement for slow
draining competitive designs

Bellows design promotes smooth,
even action during operation

Mechanically polished 20 Ra

MK 93TH SaniTary STeaM TrapS

orDering Schematic

MK93TH/0214

Model Body

93 TH 050 N P

1 Model/Body Joint

93TH Threaded Body, Standard

2 Size

025 1/4" DN8
038 3/8" DN10
050 1/2" DN15
075 3/4" DN20
100 1" DN25

3 End Connections

Inlet/Outlet

N NPT Threaded Inlet/Outlet
B* BSPT Threaded Inlet/Outlet
E* EN ISO 228-1 Threaded Inlet/Outlet

—

Size

End Connections

—

4 Options

0 None (Standard Bellows)

P High Pressure Bellows

L Electropolish

Note: you can combine up to 2 options in alphabetical
order.
For example: 93TH-075-N-PL
= MK93TH with a 3/4" NPT Threaded Inlet/Outlet, High
Pressure Belllows, Electropolished body

Note: if option 'P' under special options is not selected,
the standard bellows will be supplied.
For example: 93TH-050-N-L
= MK93TH with 1/2" NPT Threaded Inlet/Outlet,
Standard Bellows, Electropolished body

—

Special Options

* BSP and EN ISO 228-1 threads available upon
request - consult factory

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Please visit our website at www.steriflowvalve.com for the latest information on our products.