Product Overview

ManualsBrandsCaleffi ManualsHeating Supplies1-1/2" Sweat High Flow Thermostatic Mixing Valve, 13 CV (Lead Free)

CALEFFI

ACCREDITED

ISO 9001 No. 0003

ISO 9001 FM 21654

Thermostatic mixing valves,

low-lead, high-flow

5231 series

Function

The thermostatic mixing valve is used in systems producing domestic

hot water or in radiant heating systems. Its function is to maintain the

temperature of the mixed water supplied to the user at a constant set

value when there are variations in the supply pressure and temperature

of the incoming hot and cold water or in the ﬂow rate.

The 5231 series thermostatic mixing valves are ASSE 1017 approved for

point of distribution and are designed speciﬁcally for systems requiring

high ﬂow rates and precise, stable temperature control.

Technical specification

Materials: - Body: Low-lead brass

- Shutter: PPSG40

- Springs: Stainless steel

- Seals: EPDM

Medium: Water

Maximum percentage of glycol: 30% glycol solution

Setting range:

See table on page 3

Temperature stability: ± 3°F (± 2°C)

Max working pressure (static): 200 psi (14 bar)

Max operating differential pressure: 70 psi (5 bar)

Hot water inlet temperature range: 120 – 195°F (49 – 91°C)

Cold water inlet temperature range: 39 – 80°F (3.9 – 26.6°C)

Mixed temperature range: 95 – 150°F (35 – 66°C)

Maximum inlet pressure ratio (H/C or C/H): 2:1

Minimum temperature difference between hot water inlet

and mixed water outlet for optimum performance: 20°F (11°C)

Maximum water hardness: 10 grains

Certified to: *cUPC Listed to ASSE 1017/CSA B125.3

Reduction of Lead in Drinking Water Act Compliant: 0.25% Max.

weighted average lead content. Reduction of Lead in Drinking Water

Act Certifed by IAPMO R&T.

*Note: 1" and 1-¼" sizes; Listing is pending

Product Range

Code 5231_0A Thermostatic mixing valve (ASSE 1017) with threaded connections.........................................................sizes 1”, 1-1/4”, 1-1/2”, 2” union NPT male

Code 5231_8A Thermostatic mixing valve (ASSE 1017) with sweat connections................................................................... sizes 1”, 1-1/4”. 1-1/2", 2" union sweat

Code 523177A Thermostatic mixing valve (ASSE 1017) with sweat connections and outlet temperature gauge..................................... sizes 1-1/4” union sweat

ASSE 1017

01256/14 NA

Dimensions

Sweat version

110

130

150

170

190

210

B B

Code A B C D E F Wt (lb)

523160A 1" NPT 4" 8" 7 5/8" 4 3/16" 3 3/8" 7.0

523168A 1" SWT 3 5/16" 6 5/8" 7" 3 1/2" 3 3/8" 7.0

523170A 1 1/4" NPT 4 1/8" 8 1/4" 7 3/4" 4 5/16" 3 3/8" 7.1

523177A 1 1/4" SWT 3 3/8" 6 3/4" 7 5/8" 4 1/8" 3 3/8" 8.5

523178A 1 1/4" SWT 3 3/8" 6 3/4" 7" 3 1/2" 3 3/8" 7.1

523180A 1 1/2" NPT 5 1/8" 10

1/4" 9 3/16" 5 7/16" 3 3/4" 17

523188A 1 1/2" SWT 4 1/16" 8 1/8" 8 1/8" 4 3/8" 3 3/4" 17

523190A 2" NPT 5 1/8" 10

1/4" 9 1/2" 5 3/4" 3 3/4" 18

523198A 2" SWT 4 5/16" 8 5/8" 8 5/8" 4 7/8" 3 3/4" 18

Summary of content (5 pages)

PAGE 1
Thermostatic mixing valves, low-lead, high-flow CALEFFI 5231 series 01256/14 NA ACCREDITED ISO 9001 No. 0003 ISO 9001 FM 21654 Function The thermostatic mixing valve is used in systems producing domestic hot water or in radiant heating systems. Its function is to maintain the temperature of the mixed water supplied to the user at a constant set value when there are variations in the supply pressure and temperature of the incoming hot and cold water or in the flow rate.
PAGE 2
“Legionella” - Scalding risk Principle of Operation In systems producing domestic hot water with storage, in order to avoid the dangerous bacteria known as ”Legionella”, the hot water must be stored at a temperature of at least 140°F. At this temperature it is certain that the growth of the bacteria causing this infection will be totally eliminated. However, at this temperature the water cannot be used directly, as it may cause scalding.
PAGE 3
Use Locking the setting Caleffi 5231 series thermostatic mixing valves are designed to be installed at the hot water heater (ASSE 1017 models). Position the knob at the required value, unscrew the top screw, slide off the knob and put it back in such a way that the handle fits into the internal slot of the knob. Tighten the head screw. ASSE 1017 models are designed to be installed at the hot water heater and cannot be used for tempering water temperature at fixtures as a point-of-use valve.
PAGE 4
Applications diagrams Radiant heating system application 2 1 MIN MAX 7 CALEFFI CALEFFI 10 8 6 4 2 10 8 6 4 2 10 8 6 4 2 10 8 6 4 2 10 8 6 4 2 10 8 6 4 2 0 0 0 0 0 0 CALEFFI SUPPLY CALEFFI MAX 7 HOT COLD BLUE CALEFFI CALEFFI HOT RED COLD 2 1 MIN MIX MIX RETURN Radiant loop 2 1 MIN MAX 7 Domestic water system with recirculation Recirculation with point-of-distribution thermostatic mixing valves Key to symbols For domestic recirculating systems that include a single ASSE
PAGE 5
SPECIFICATION SUMMARIES 5231 series Adjustable thermostatic mixing valve. cUPC Listed to ASSE 1017/CSA B125.3. Threaded NPT or sweat connections from 1” to 2” with unions and tailpieces. Low-lead brass body (<0.25% lead content) certified by IAPMO R&T. PPSG40 shutter, stainlless steel springs, and EPDM seals. Maximum working pressure 200 psi (14 bar). Maximum operating differential pressure 70 psi (5 bar). Mixed temperature setting range 90-150°F (32-66°C), Temperature stability ± 3°F (± 2°C).