retard chamber

7/30/2019 Retard Chamber

http://slidepdf.com/reader/full/retard-chamber 1/2

JU N E 2002

FA X 9 8 9 - 84 6 - 9 23 19 8 9 - 8 4 6 - 4 5 8 34 0 7 7 A IR PA R K D R IV E, ST A N D ISH , M I C H I G A N 4 8 6 5 8

B U L L E T I N R ET . C H M ., R EV . # 2D -1

 D ESCRIPTION AND O PERATION 

T h e G l obe M od e l H R e t ar d i ng C ham ber i s an acc es-sory wh ich i s used w i th var iab le p ressure wet spr ink le rs y s t em s w he r e w a t e r m o t o r a l a r m s and / o r p r es s u r es w i t c hes a r e us ed i n c on j unc t i on w i t h G l obe ' s A l a r mC heck V alves. I t serves pr im ar i ly as a hydr aul ic t im e delayto p revent mos t f a lse a la rms assoc ia ted w i th f l uc tua t ingw ater supp ly p ressur es. I n si t ua t ions wh er e excessivew a t e r p r es s u r e s u r ges oc c u r , t he M ode l H R e t a r d i ngC ham ber i s needed t o c o l lec t ex c ess w at e r f r o m t he A l ar mC hec k V a l v e and f eed w a t e r bac k i n t o t he m a i n d r a i n ,be for e ac t i vat ing the a lar m . A n add i t io na l r e ta rd ing cham-ber cou ld be needed i f p r essur e sur ges exceed t he capac i t yo f on e r e t a r d i ng c ham ber .

W at e r e n t e r s t h e r e t a r d i ng ch am b e r t h r o u gh t h e 1 / 2 "N P T I n l et and au t o m at i c al ly f low s t h r o ugh a r est r i ct edo r i fi ce and t o d r a in ; w hen th e dr a in capac i t y i s exceeded,as when the a la rm check va lve c lapper remains open orwhen the sys tem is be ing tes ted , t he re ta rd ing chambercapac i t y i s reached, and water t hen f lows th rough theO u t l et t o t h e w at e r m o t o r al ar m an d / o r e le ct r i c al ar ms w i t c h .

T he bod y o f t he R e t ar d i ng C ham ber has cons i der ab l educ t i l it y t o r educe dam age in f i e ld hand l ing.

A l l in t e r i o r ope r at i ng par t s ar e m ac h ined f r o m h i gh l ycorros ive-res is tant a l loys, each hav ing h igh s t rength andgood wear res is tance.

 R ETARDING C  HAMBER

 M ODEL H 

W at e r W or k i ng Pr essu r e R a t i ng - 175 ps i ( 12 bar s ) .Facto r y tes ted hydr os ta t i cal l y t o 350 ps i (24 bars ).C apac i t y - 1 G a llon (3 .785 l i t e r s)B ody - H i gh T ensi le C ast I r on

T  ECHNICAL D ATA

cU Lus L istedFM A p p r o v edL PC B A p p r o v ed

 A PPROVALS

MODEL HRETARD CHAMBER

Print Main Ind

7/30/2019 Retard Chamber

http://slidepdf.com/reader/full/retard-chamber 2/2

FA X 9 8 9 - 84 6 - 92 3 1

w w w . g l o b e s p r i n k l e r . c o m

PR IN T E D U .S.A .

4 0 7 7 A IR PA R K D R IV E, ST A N D ISH , M I C H I G A N 4 8 6 5 8

9 8 9 - 8 4 6 - 4 5 8 31 - 8 0 0 - 2 4 8 - 0 2 7 8

B U L L E T I N R ET . C H M ., R EV . # 2JU N E 2002

OUTLET 3/4" NPT

14 1/2"

74H3

LISTED

.M

UL

1/2" NPT

INLET

GLOBE

MODEL H

CHAMBER

RETARD

2 1/2"

DRAIN 1/2" NPT

6 5/8" DIA

74H3

LISTEDU

.M

L

MODEL H

CHAMBER

RETARD

GLOBE

2

1

6

4

5

3

 R ETARDING C  HAMBER

 M ODEL H 

G LOBE®  P RODUCT W  ARRANTY 

  G lobe agrees to r epa i r o r r ep lace any o f i t s ow n manufac -

t u r e d p r o d u c t s f o u n d t o b e d e f e c t iv e in m a t e r i a l o r w o r k m a n -

sh i p f o r a p e r i o d o f o n e y e a r f r o m d a t e o f s h ip m e n t .For spec i f ic de ta i ls o f our w ar ran ty p l ease re fe r to P r i ce

L i st T erm s and Co nd i t i on s o f Sa le (O ur P r i ce L i st ) .

O RDERING I  NFORMATION SPECIFY

Q u an t i t y M o d e l N u m b e r

Refer to G lobe 's A la rm Check Va l ve Ins ta l l a t i on and Main tenance Gu ide (Bu l l e t i n A .C.V . I .M . ) fo r t r im se t -up , i ns ta l l a t i on i ns t ruc t i ons , and

main tenance.

ITEM DESCRIPTION MAT'L P/N

1 Outlet Bushing Cast Iron 323354

2 Machined Body Cast Iron 323352

3 Hex Head Machine Screw Brass 323357

4 Cup Brass 323356

5 Strainer Screen Brass 323355

6 Drain Bushing Brass 323353

C  ROSS S ECTION  D IMENSIONS