URH - Valve

Circular exhaust valve.

Aesthetic in design and easy to adjust.

  • Exhaust air valve.
  • Wall or ceiling installation.
  • Adjustable airflow rate.
  • Ability to measure airflow rate.
  • Attenuates duct noise.
  • Installation with or without a separate installation frame.

Product models and Accessories

  • Installation with fixed springs.
  • Alternative installation frame options.

The exhaust valve shall have an adjustable central cone and sleeve made of painted steel, with a white (RAL 9010) standard colour. The valve shall be fitted with a galvanised steel installation frame. The installation frame shall incorporate a sealing gasket.

Alternative: The valve shall be fixed with springs directly into a duct.

The opening position of the central cone shall be adjusted during balancing in order to achieve required pressure loss and airflow rate. After balancing the central cone shall be locked to the selected adjustment position.

Halton URH

Circular exhaust valve

  • Exhaust air valve.
  • Wall or ceiling installation.
  • Adjustable airflow rate.
  • Ability to measure airflow rate.
  • Installation with or without a separate installation frame.

Product models and Accessories

  • Installation with fixed springs.
  • Alternative installation frame options. 

Dimensions and weight

 

NS

ØW

H

ØD

100 140 13 98
125 165 13 122
160 200 13 158
200 251 13 198

Weight

NS

Weight (kg)

100 0.29
125 0.40
160 0.55
200 0.83

Material

 Part

 Material

 Note

 Collar  Steel  
 Central cone  Steel  
 Gasket  Polyurethane  
 Installation frame  Galvanised steel  Gasket of rubber compound
 Protection ring  Steel  
 Finishing  Painted
 white (RAL 9010)
 Special colours available

Accessories

 Accessory

Code

 Description

 Cover plate CS  For protection of the surfaces from
 smudging and for directing the air jet
 in a grid-structured ceiling
 Extension part EP  Extension part for detaching the
 valve from the surface/
 standard height 50 mm
 Installation frame LF  Installation frame without gasket/
 height 50 mm
 Installation frame GF  Installation frame with gasket/
 height 50 mm
 Installation frame DF  Installation frame with duct
 dimensions can be installed directly to duct
 parts such as bending or T-branch etc

 

 
Fig.1. Cover plate (CS)                               Fig.2. Extensions part (EP)

 
Fig.3. Installation frame (LF)                        Fig.4. Installation frame (GF)


Fig.5.  Installation frame (DF)

Function

The valve throttles the exhaust airflow and attenuates the duct noise. The pressure drop is dependant on the position of the central cone. The desired exhaust airflow rate is adjusted during the balancing of the airflows in a ductwork system. After the adjustment the valve is locked at the required adjustment position.

Installation

The Halton URH exhaust valve is mounted with the aid of a separate installation frame LF, GF or DF. Push the installation frame into the duct and fix it. Push the valve into the installation frame and turn until it is firmly attached.
Alternatively model URH/B can be installed directly into a duct without an installation frame.

Installation with protection ring (CS)

 

NS

Ø W2

100 290
125 315
160 350
200 400

Adjustment

The Halton URH valve is adjusted by rotating the central cone. Measure the opening (A) position (in mm) of the central cone. Set a probe inside the valve and measure the differential pressure with a manometer. The airflow rate is calculated using the formula below. After the adjustment, lock the central cone with the locking nut.
 

                                     

 

A
URH Ø 100

k
URH Ø 100

 

A
URH Ø 125 

k
URH Ø 125 

 

A
URH Ø 160

k
URH Ø 160

 

A
URH Ø 200

k
URH Ø 200

  -15 0,43   -15 0,65   -12 1,16   3 1,78
  -12 0,63   -12 0,92   -9 1,51   6 2,46
  -9 0,83   -9 1,22   -6 1,9   9 3,24
  -6 1,02   -6 1,53   -3 2,31   12 3,97
  -3 1,22   -3 1,84   0 2,75   15 4,69
  0 1,42   0 2,17   3 3,25   20 5,88
  3 1,65   3 2,52   6 3,73   25 6,95
  6 1,88   6 2,83   9 4,22      
  9 2,11   9 3,14   12 4,67      
  12 2,33   12 3,46   15 5,12      
        15 3,77   18 5,58      

 

Servicing

Code description
1.   Central cone
2.   Locking nut
3.   Sleeve

Loosen the valve from the ductwork by turning counter-clockwise. Note the adjusted opening position of the central cone.
Wipe the parts with a damp cloth, instead of immersing in water. Reassemble valve in reverse order after cleaning.

Specification

The  exhaust valve shall have an adjustable central cone and sleeve made of painted steel, with a white (RAL 9010) standard colour. The valve shall be fitted with a galvanised steel installation frame. The installation frame shall incorporate a sealing gasket.

Alternative: The valve shall be fixed with springs directly into a duct.

The opening position of the central cone shall be adjusted during balancing in order to achieve required pressure loss and airflow rate. After balancing the central cone shall be locked to the selected adjustment position.

Order Code

URH/S-D

S = Model
       A    Standard
       B    With fastening springs

D = Connection size
       100, 125, 160, 200

Other options and accessories

CO = Colour
          W    White (RAL 9010)
          X     Special colour

ZT  = Tailored product
     
     N     No
          Y     Yes

Sub products

          CS    Cover plate (ULA)
          EP    Extension part
          DF     Installation frame for duct parts
          GF    Installation frame with gasket
          LF    Installation frame without gasket

Code example

         URH/A-100, CO=W, ZT=N

Downloads & Media

Halton URH - gb
Type
Datasheet
Language
English (United Kingdom)
Size
585,8 kB
Halton URH - fr
Type
Datasheet
Language
French (France)
Size
588,7 kB
Halton URH - nl
Type
Datasheet
Language
Dutch (Netherlands)
Size
589,3 kB
Halton URH - se
Type
Datasheet
Language
Swedish (Sweden)
Size
586,5 kB
Halton URH - fi
Type
Datasheet
Language
Finnish (Finland)
Size
588,2 kB
Halton URH - ru
Type
Datasheet
Language
Russian (Russia)
Size
615,4 kB