Specification Sheet

model TWBS.HF
AXION
®
Thermostatic Mixing Valves
FEATURES & BENEFITS
SPECIFICATIONS
BYPASS
Best-in-class cold water bypass ow (100% of rated
tempered water ow) means continued protection
under adverse conditions.
POSITIVE SHUT OFF
Actively suspends hot water ow when cold water supply
is lost to protect against scalding.
PRESSURE DROP
Lowest internal pressure drop for this valve class –
essential where supply pressure is low.
OPERATING RANGE
Minimal outlet temperature variation is achieved by
having the best minimum ow rate in the industry.
SHUTTLE DESIGN
Superior shuttle design combined with premium
material selection eliminates valve binding and reduces
maintenance costs.
MIXING CHAMBER
Innovative funnel design generates turbulent ow to
ensure consistent temperature blending across entire
ow range.
LEAD FREE
Certied to NSF61 and California Health and Safety Code
116875 (AB 1953-2006).
ANTI-SCALD PROTECTION
Redundant anti-scald protection with internal cold water
bypass ensures reliable protection. Main tempering
valve provides primary protection while backup shutoff
valve provides secondary high-temp protection. Internal
cold water bypass supplies cold water if hot water supply
or main tempering valve fails.
FLOW RATES
Flow range of 1 to 78 gpm (295 L) provides service for
multiple emergency combination showers or multiple
eyewashes to reduce hardware costs.
MEDICALLY SUPERIOR RESPONSE
AXION’s superior design and technology provide a complete
safety solution for increased victim comfort.
EXTENDED WARRANTY
3-year extended warranty based on superior engineering
and best-in-class material selection means reliable
protection you can trust for the long term.
FLOW CAPACITIES
MODEL
TWBS.HF
INLET
2”
79
299
1
4
5
.345
32
121
10
.689
45
170
15
1.03
55
280
20
1.38
64
242
30
2.07
78
295
45
3.10
95
360
60
4.13
110
416
PSI
BAR
GPM
L/MIN
2”
OUTLET
MINIMUM
FLOW
PRESSURE DROP
INTERNAL COLD
WATER BY-PASS
AT 30PSI DROP
1455 Kleppe Lane :: Sparks, NV 89431 :: p. 775.359.4712 :: f. 775.359.7424 :: e. [e-mail] :: www.hawsco.com :: 21 November, 2013
DISCLAIMER: Continued product improvements make specications subject to change without notice. Check www.hawsco.com for the latest product information and updates.
Model TWBS.HF - Thermostatic Mixing Valve (patent pending)
MINIMUM MAXIMUM
Flow Rate 78 GPM 295 LPM 1 GPM 4 LPM
Hot Inlet Temperature 180° F 82° C 120° F 49° C
Recommended Hot
Inlet Temperature 140° F 60° C
Cold Inlet Temperature 70° F 21° C 40° F 4° C
Adjustable Outlet
Temperature Range 85° F 29° C 60° F 16° C
Operating Pressure 125 PSI 8.6 BAR
Factory Temperature
Set Point 85° F 29° C
Cold Water Bypass 79 GPM 299 LPM @ 30 PSI
Inlet Ports: 2” NPT(f) Outlet Port: 2” NPT(F)
Maximum Inlet Pressure Differential: +/- 10%
Listings: ASSE 1071, CSA B125.3, NSF/ANSI 61-section 8,
NSF/ANSI 372, California Health and Safety Code
116875 (AB 1953-2006).