3/4" Zone Sentry Valve  Normally Closed (Threaded) Zoom

3/4" Zone Sentry Valve Normally Closed (Threaded)

SKU:Z075T2-1

Brand: Taco

Taco
Z075T2-1 has been discontinued.
Direct Replacement:
SKU: Z075T2-2
Brand: Taco
0

Resources

Specs

Size: 3/4"
Connection Type: Threaded
Application: Zoning
Voltage:
?
24v
Hertz: 60
Amperage:
?
0.48
Max Operating Pressure: 300 psi
Fluid Temperature Range: 20°F to 220°F
Position: Normally Closed

Description for Taco Z075T2-1

Taco Zone Sentry Zone Valves provide on-off, normally open or normally closed control in both open and closed hot or chilled water systems. The valves can be used in a wide variety of heating and cooling applications, primarily designed for use with fan coils, radiators, convectors, air handlers, heat pumps and radiant applications.

The Zone Sentry is the most technologically advanced zone valve ever made. It's also simple to install and operate. The valve can be installed in any direction, in any orientation. Taco then went a step further, allowing the operator to be mounted to the valve body in either direction (see Figure A of the manual in the "Manuals" tab), great for those tight baseboard jobs. Snap-in quick connects on the back of the valve make for a simple, secure and fast wiring hook-up. A green LED light shows full functionality of the valve's operation and thermostat status. Under a no power situation the manual override button located on the top of the valve allows the ball to be rotated up to 90° and is also marked with a slot to indicate the position of the valve.

3/4" Zone Sentry Valve Normally Closed (Threaded)

REVIEW SNAPSHOT®

by PowerReviews
Taco3/4" Zone Sentry Valve Normally Closed (Threaded)
 
4.7

(based on 56 reviews)

Ratings Distribution

  • 5 Stars

     

    (44)

  • 4 Stars

     

    (7)

  • 3 Stars

     

    (5)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

96%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

Easy install but makes cycling noise

I installed two of these inside an interior 2 x 4 stud wall between the master bedroom and the living room. These replaced two wonderfully silent Dole valves which are no longer available. One...Read complete review

I installed two of these inside an interior 2 x 4 stud wall between the master bedroom and the living room. These replaced two wonderfully silent Dole valves which are no longer available. One was weeping a bit but I replaced both. The two valves both feed off a Tee coming up from the boiler in the basement, one for the master bedroom and one for the living room. The zone valves are compact and easy to install and seem well made. My only complaint is that when they operate they produce the normal muted, whooshing sound followed by a creaking sound as the valve comes to it's fully open or closed position followed by 3 more creaking sounds as it tries 3 more times to make sure the valve has moved fully. Wish the firmware for these valves could be changed to eliminate the extra "tries" at powering the valves. The extra noise wakes us up sometimes. Too bad these can't be relocated in the basement in my installation.

VS

Most Liked Negative Review

 

Cheap Plastic Manual Override

Overall the unit works as it should but the cheap plastic override was a surprise. I pressed in and turned then it twisted off. Obviously I thought the value was turning when in fact...Read complete review

Overall the unit works as it should but the cheap plastic override was a surprise. I pressed in and turned then it twisted off. Obviously I thought the value was turning when in fact it wasn't. The valve is brass why cheap out on small part like this? I'm not sure I'd recommend this brand of zone valve until I've tried others and used this one longer. If it goes past 10 years w/o leaking then I can over look the cheap manual override and bump it to 4 stars since I can take the controller off and turn it with a pliers.

Reviewed by 56 customers

Displaying reviews 1-10

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(1 of 1 customers found this review helpful)

 
5.0

Great Price Compared to the Last OnesI Bought

By Plumber T

from Colorado Springs

Verified Buyer

Comments about 3/4" Zone Sentry Zone Valve Normally Closed (Sweat):

Bought two fo these zones as backup replacements for two older valvles. Had to replace three of these last year from the heating and air conditioning company that replaced them. Cost me an arm and a leg. Much better to get these from Supply House and install them yourself. Takes five minutes to install and work great.

(1 of 1 customers found this review helpful)

 
5.0

works great

By travisophila

from Worcester, Ma

Verified Buyer

Comments about 1/2" Zone Sentry Valve Normally Closed (Sweat):

Works well, wired it into a TACO valve control module. Valve opens every time there is a call for heat. Was easy to take off the motor to sweat the valve. Price is good from supplyhouse.

(1 of 1 customers found this review helpful)

 
5.0

Best zone valves I've tried

By Jack

from Seattle, WA

Verified Buyer

Comments about 3/4" Zone Sentry Zone Valve Normally Closed (Sweat):

I'm generally neutral about Taco's products, but these zone valves are quite a bit better than others. They can be mounted in any orientation, which eliminates hassles when I install, and they have the lowest VA draw of any zone valve I know of, 1.44 VA, meaning I don't need to upsize the transformer very often. I'm surprised the other zone valve makers haven't copied this design yet.

 
5.0

Great service

By Dickybeau

from Hartford Ct

Verified Buyer

Comments about 3/4" Zone Sentry Zone Valve Normally Closed (Sweat):

These valves are a good value with isolated dry contacts. I use them in heating zones and have used Taco products for over 40 years. Recommend these to my customers.

 
5.0

Great Valve

By Augie

from Minnesota

Verified Buyer

Comments about 3/4" Zone Sentry Valve Normally Closed (Threaded):

Being able to turn the head around makes this extremely easy to mount. I purchased the 3/4 pipe thread valve, and it was mounted and in use within 10 minutes of receipt. Also easy to wire.

 
5.0

I would buy this product again.

By Marv

from Illinois Quad Cities

Verified Buyer

Comments about 3/4" Zone Sentry Zone Valve Normally Closed (Sweat):

Instllation Instructions are good.Easy to instal & wire with included instructions.Checks out OK prior to heating season.Good Price.

 
5.0

Works well, right out of the box

By Geoman

from Connecticut

Verified Buyer

Comments about 3/4" Zone Sentry Valve Normally Closed (Threaded):

I used this on an open loop geothermal heat pump. Great option for replacing Taco's older valve or for replacing fast-closing solenoid vavles.

 
5.0

3/4" Sentry valve, normally closed

By Dave

from chesaning, mi.

Verified Buyer

Comments about 3/4" Zone Sentry Zone Valve Normally Closed (Sweat):

I installed an amtrol boilermate for my hot water, replacing my aging elec. water heater. I am using this sentry valve to control it and it is working great.

(0 of 1 customers found this review helpful)

 
3.0

Excellent design with 1 exception

By agmantoo

from Piedmont section of North Carolina

Verified Buyer

Comments about 3/4" Zone Sentry Valve Normally Closed (Threaded):

The ball in this valve will react with well sourced ground water when used in an open loop geothermal heat pump resulting in a leak through the flow path instead of sealing when the valve cycles shut off.

 
5.0

Easy to use and install

By proudap

from Wichita, KS

Verified Buyer

Comments about 3/4" Zone Sentry Valve Normally Closed (Threaded):

I have a water Water Furnace heat pump. I need a good water control valve for flow control. This valve is the only one that works well in this application. Low voltage operation, wide temperature range and any position installation make this valve the best for water flow control in a HVAC system. Taco also give the best product suppoert.

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Q&A: Ask the Questions, share answers

Do you have questions about this product?

Get answers from real customers and in-house experts with AnswerBox.

18 Questions | 44 Answers
Displaying questions 1-10Previous | Next »
  • 3/4" Zone Sentry Zone Valve Normally Closed (Sweat)

    Q:

    can I use this to control a potable water supply
    Asked on 8/13/2016 by sam from miami

    1 answer

  • 3/4" Zone Sentry Zone Valve Normally Closed (Sweat)

    Q:

    Does a 3/4 inch copper pipe fit inside or outside of the 3/4 inch valve?
    Asked on 1/29/2016 by Ant from United States

    1 answer

    • VERIFIED BUYER

      A:

      Inside...it is essential to protect the valve from excessive heat during
      the sweating process. Concentrate the heat away from the valve body and
      use a wet rag around the brass body part to dissipate excessive heat from
      harming the valve.

      Answered on 1/29/2016 by Anonymous
  • 1" Zone Sentry Valve, 3 Way Normally Closed (Threaded)

    Q:

    Is the bottom port of this valve normally open, or normally closed?
    Asked on 11/27/2015 by snowman from Michigan

    1 answer

    • CUSTOMER CARE

      A:

      This valve is in the normally closed position.

      Answered on 3/24/2016 by SupplyHouse Staff from New York
  • 1/2" Zone Sentry Valve Normally Closed (Sweat)

    Q:

    I'm confused about the orientation described in the installation manual that says that the value can only be oriented +/- 85 degrees for chilled water applications.

    I want to orient the valve vertically so that the chilled water flows upward. Is this acceptable?
    Asked on 11/4/2015 by Ed

    1 answer

    • CUSTOMER CARE

      A:

      Yes this valve can be installed vertically.

      Answered on 3/14/2016 by SupplyHouse Staff from New York
  • 3/4" Zone Sentry Valve Normally Closed (Threaded)

    Q:

    Would I be able to use these Sentry valves (threaded) in place of a Taco 571 zone valve. (i am redoing my system and am looking for a threaded zone valve)
    Thank you.
    Asked on 10/10/2015 by john from boston,ma

    2 answers

    • VERIFIED BUYER

      A:

      You can. ..system would have to be rewired because the 571 is a 3 wire and the newsentry valve uses 4 wires.
      Sent from my Verizon Wireless 4G LTE smartphone

      Answered on 10/10/2015 by Anonymous
    • VERIFIED BUYER

      A:

      I think the valve would work OK, but it is motor driven and make some noise when it operates. So if quiet operation is necessary, the thermal actuator in the Taco valve will be much quieter.
      Don S.

      Answered on 10/10/2015 by Anonymous
  • 3/4" Zone Sentry Valve Normally Closed (Threaded)

    Q:

    Can this be installed outdoors for irrigation in a foggy area? Will moisture/condensation affect operation?
    Asked on 10/1/2014 by Omar from South San Francisco, CA

    3 answers

    • VERIFIED BUYER

      A:

      Yes. I'm sure moisture would affect the valve.

      Answered on 10/1/2014 by Anonymous
    • VERIFIED BUYER

      A:

      I have not used this valve in a condensing environment, and would not recommend it. It has an electronic circuit board inside which is likely prone to problems with condensate present.

      Answered on 10/1/2014 by Anonymous
    • VERIFIED BUYER

      A:

      I would not install outside. does have a circuit board
      Sent from Windows Mail

      Answered on 10/1/2014 by Anonymous
  • 3/4" Zone Sentry Zone Valve Normally Closed (Sweat)

    Q:

    My new baseboard hydronic heating system has 1/2" Supply and Return lines (increased through the 3/4" Slant Fin Baseboard then reduced). What size Taco Sentry Zone valve should I purchase 1/2" or 3/4"? I was thinking 3/4" to get more flow/pressure.
    Asked on 7/9/2014 by Rick from NYC

    10 answers

    • VERIFIED BUYER

      A:

      3/4 will have less pressure drop then the 1/2" will. Cost difference is
      minimal.

      Answered on 7/9/2014 by Anonymous
    • VERIFIED BUYER

      A:

      1/2" are fine. Your system will be limited by the 1/2" tube so that you
      don't have velocity noise. Up sizing just the valves won't gain ya much.

      Answered on 7/9/2014 by Anonymous
    • VERIFIED BUYER

      A:

      yes do the 3/4 because it is smaller than 3/4 thru the valve
      Sent from Windows Mail

      Answered on 7/9/2014 by Anonymous
    • VERIFIED BUYER

      A:

      Go with the ¾.

      Answered on 7/10/2014 by Anonymous
    • VERIFIED BUYER

      A:

      I am using a 3/4 valve which has a nearly straight through path, so the pressure drop introduced by the valve is minimal. Assuming the construction of the 1/2 valve is similar, it would perform as well as the 3/4 in your application. So you would not likely get more flow with the 3/4 valve.
      Don

      Answered on 7/9/2014 by Anonymous
    • VERIFIED BUYER

      A:

      Since the supply and return line is 1/2" there is no advantage to buying
      3/4" valves. Besides the fluid must remain in the finned baseboard unit for
      effective heat transfer so a slow circulation may not be an issue.

      Answered on 7/9/2014 by Anonymous
    • VERIFIED BUYER

      A:

      Your statement " I was thinking 3/4" to get more flow/pressure." IMO the
      flow/volume and pressure is controlled already by the 1/2" supply and
      return lines. Changing the size of the Taco valve will have little
      impact. I would just match the existing line size (1/2") and avoid the
      additional sweat joints

      Answered on 7/9/2014 by Anonymous
    • VERIFIED BUYER

      A:

      If there is not to much price difference I would go with the 3/4" but I expect the pressure drop on the 1/2" would be very minimal give the low flow rate through each rad.
      Sent from my Android phone using TouchDown (www.nitrodesk.com)

      Answered on 7/9/2014 by Anonymous
    • VERIFIED BUYER

      A:

      Hi,
      It doesn't sound like your system designer knows what he is doing. 1/2 inch copper is probably inadequate for heat system distribution. Putting in 3/4 inch zone valve(s) will not make any real difference.
      Good luck!

      Answered on 7/10/2014 by Anonymous
    • A:

      The circulator pump dictates flow - All residential hydronic systems run on 12PSI. The only effect the 1/2" has is the amount of gpm that it can carry. What dictates btu/hr? Simply gpm x Delta-T x 500 = Btu/hr delivered.

      Typical residential hydronic systems are designed for a 20 Degree Delta-T, the numnber 500 represents the weight of 1 gallon of water x 60 minutes rounded up. Max flow rate through 1/2" copper is 3gpm

      3 x 20 x 500 = 30,000 Btu/hr

      Does that zone require more then 30,000 btu/hr? The only effect using a 3/4" Zone Valve is the pressure drop across it is less. If the pump is a Taco 007 the difference btwen a 1/2" and 3/4" valve is irrelevant.

      Answered on 12/12/2014 by CMad from New York
  • 3/4" Zone Sentry Valve Normally Closed (Threaded)

    Q:

    Can I use this valve to replace a Taco valve model 5101G? Thanks.
    Asked on 6/2/2014 by Jerry from Cary, GA

    1 answer

    • CUSTOMER CARE

      A:

      The 5101G can be used in open systems, while this zone sentry should not. V075C2G2ZA024Q4A1 would be the zone sentry equivalent.

      Answered on 6/3/2014 by SupplyHouse Staff from NY
  • 3/4" Zone Sentry Valve Normally Closed (Threaded)

    Q:

    Is the threaded version of this valve a female NPT or male NPT ?
    Asked on 3/7/2012 by Ken from Mesa, AZ

    11 answers

    • VERIFIED BUYER

      A:

      The valve is female NPT.

      Answered on 3/7/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      It is a female thread. 

      Answered on 3/7/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      It is a female NPT " National Pipe Thread"

      Answered on 3/8/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      Female NPT

      Answered on 3/7/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      female

      Answered on 3/7/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      Sorry I was not on this email last eve, to answer the question the fitting is "female pipe thread".  These valves are wonderful and a major improvement over the old "heat motor" style valves.  They have become the "valve of choice" for all my hydronic and geothermal applications that require a motorized valve.

      Answered on 3/8/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      The valve housing, is "female NPT" it is designed to mate with "male"
      threaded pipe, or other fittings.

      Answered on 3/8/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      female NPT

      Answered on 3/8/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      Female NPT

      Answered on 3/8/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      It's female thread.

      Answered on 3/9/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      It is female npt.
      .

      Answered on 3/9/2012 by Another PexSupply Customer
  • 3/4" Zone Sentry Valve Normally Closed (Threaded)

    Q:

    Can these valves be configured for either "normally open" or "normally closed"? Or do you need to buy a specific model number to be normally open and a different model number to be normally closed?
    Asked on 1/21/2012 by Anonymous

    1 answer

    • CUSTOMER CARE

      A:

      You would need to specify at the time of order. This particular zone valve is normally closed.

      Answered on 1/23/2012 by PexSupply Staff from NY
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