E. Pressure Gauge HDP-1

DIAL SIZE HDP & HDP-1 – 90mm (3.5”)
HDP-2 – 100 MM (4”)
CONNECTION 1/4” BSPT (Standard Supply)
1/4” NPT (Optional)
RANGE HDP – 0 to16 Kg./Sq.Cm
& 0-250 PSI
HDP-1 – 0 to 21 Kg./Sq.Cm
& 0-300 PSI
HDP-2 – 0 to 21 Kg./Sq.Cm
& 0-300 PSI
BURDON TUBE & HDP & HDP-1 – Phosphorus
WETTED PARTS Bronze Burdon Tube &
Brass moving parts
HDP-2 – Monel
DIAL TYPE White background
black graduation scale
with dual reading in
Kg./ Sq.Cm and PSI
CASE AND BAZEL Polished Stainless Steel Case
with positive seal against
weather, moisture & dust.
HDP-2 is Glycerine filled.
WINDOW Hardened Glass
ACCURACY +/- 2% of FSD for
middle half of scale
WEIGHT (Approx) 0.3 Kg for HDP & HDP-1
0.8 Kg for HDP-2
HDP-1, HDP-2 – UL Listed &
(FM Approved)
ORDERING Specify connection & Model


E. Pressure Gauge HDP-1
E. Pressure Gauge HDP-1

Pressure Gauges are specifically designed for Fire Sprinkler Services. Model HDP & HDP-1 has corrosion resistant polished stainless steel case and Bazel and Brass wetted parts. Model HDP-2 is having Monel internal and Glycerine filled for sea water application. The dial has pressure reading in KG/SQCM and PSI. The gauge window is hardened glass.
The pressure gauge must be mounted by square provided for spanner grip on the socket and not by turning the case. Turning of case will damage the gauge. Use PTFE tape around male threads of the gauge for sealing. Pressure gauge must be mounted in vertical position and isolated with valve or cock. The pressure gauge must be handled with due care.
For best results , the storage as well as any further shipment be made in original packing only.
HD FIRE PROTECT PVT. LTD. hereby referred to as HD FIRE warrants to the original purchaser of the fire protection products manufactured by HD FIRE and to any other person
to whom such equipment is transferred, that such products will be free from defect in material and workmanship under normal use and care, for two (2) years from the date of
shipment by HD FIRE. Products or Components supplied or used by HD FIRE, but manufactured by others, are warranted only to the extent of the manufacturer’s warranty.
No warranty is given for product or components which have been subject to misuse, improper installation, corrosion, unauthorized repair, alteration or un-maintained.
HD FIRE shall not be responsible for system design errors or improper installation or inaccurate or incomplete information supplied by buyer or buyer’s representatives.
HD FIRE will repair or replace defective material free of charge, which is returned to our factory, transportation charge prepaid, provided after our inspection the material is
found to have been defective at the time of initial shipment from our works. HD FIRE shall not be liable for any incidental or consequential loss, damage or expense arising directly
or indirectly from the use of the product including damages for injury to person, damages to property and penalties resulting from any products and components manufactured
by HD FIRE. HD FIRE shall not be liable for any damages or labour charges or expense in making repair or adjustment to the product. HD FIRE shall not be liable for any
damages or charges sustained in the adaptation or use of its engineering data & services. In no event shall HD Fire’s product liability exceed an amount equal to the sale price.
The foregoing warranty is exclusive and in lieu of all other warranties and representation whether expressed, implied, oral or written, including but not limited
to, any implied warranties or merchantability or fitness for a particular purpose. All such other warranties and representations are hereby cancelled.
The equipment presented in this bulletin is to be installed in accordance with the latest publication standards of NFPA or other similar organisations and also with the
provision of government codes or ordinances wherever applicable. The information provided by us is to the best of our knowledge and belief, and consist of general guidelines only. Site handling and installation control is not in our scope. Hence we give no guarantee for result and take no liability for damages, loss or penalties whatsoever, resulting from our suggestion, information, recommendation or damages due to our product. Product development is a continuous programme of HD FIRE PROTECT PVT. LTD. and hence the right to modify any specification without prior notice is reserved with the company. D-6/2, ROAD NO. 34, WAGLE INDUSTRIAL ESTATE, THANE 400 604, INDIA. • TEL: + (91) 22 2158 2600 • FAX: +(91) 22 2158 2602 • EMAIL: info@hdfire.com • WEB: www.hdfire.com HD FIRE PROTECT PVT. LTD. Protecting What Matters Most to You HD FIRE PROTECT PVT. LTD. The pressure gauge, which is visibly damaged, should not be installed. It is recommended that the pressure gauges must be inspected regularly for possible corrosion or damage. The gauge must be periodically calibrated as per requirement of NFPA/TAC or as per local authority having jurisdiction.  CAUTION 1) Do not over tighten the Gauge 2) Do not tighten the gauge by holding dial. Always use spanner to tighten. Note: Pressure guages are mass calibrated, hence individual calibration certificate in not provided