������

������

������

��

The product must not be used in this region.

Body design conditions

PMA Maximum allowable pressure

TMA Maximum allowable temperature

PMO Maximum operating pressure

TMO Maximum operating temperature

Designed for a maximum cold hydraulic test pressue of

Capacities

See TI-P072-02 for capacities

DPMX - Maximum differential pressure

Steam saturation curve

��

��

��

��

��

����

����

����

����

Pressure bar g

DPMX - Maximum differential pressure bar

Steam traps

Local regulations may restrict the use of this product to below the conditions quoted.

In the interests of development and improvement of the product, we reserve the right to change the specification without notice.

Inverted bucket

© Copyright 2016

HM Series

Cast Iron

Inverted Bucket Steam Traps

Description

The Spirax Sarco HM Series of cast iron inverted bucket steam

traps are designed for installation in horizontal pipework. They are

available in screwed and flanged connections, with an optional

blowdown valve.

Sizes and pipe connections

1⁄2" - HM00, 3⁄4" - HM10 and 1" - HM12

Screwed BSP or NPT

DN15 - HM003, DN20 - HM103 and DN25 - HM123.

Standard flange: BS 4504 and DIN PN16

Optional extras

Integral blowdown valve:- The HM Series inverted bucket steam

traps can be supplied with integral blowdown valves to remove

debris from the inlet strainer. For further details see the relevant

Technical Information Sheet.

External air vents:- When required, HM Series inverted bucket

steam traps can be supplied with separate thermostatic air vents

to provide the efficient and quick release of air. Various models,

both balanced pressure and bimetallic, are available. Details for

the range up to 30 bar g are shown in the relevant sales brochure.

Diffusers:- Where steam traps discharge to atmosphere a diffuser

should be fitted to reduce the effect of the blast discharge. The

diffuser not only reduces the risk of groundwork erosion and

condensate splashback, but also reduces sound pressure levels

as well. Available models are detailed in the relevant sales

brochure.

Pressure / temperature limits

5.6.2

PN16

16 bar g

300 °C

16 bar g

300 °C

24 bar g

4

8.5

10

12.5

14

1⁄2"

HM00/8 HM00/7 HM00/6

-

-

3⁄4"

HM10/10 HM10/8

-

HM10/7

-

1"

HM12/12 HM12/10

-

-

HM12/7

DN15 HM003/8 HM003/7 HM003/6

-

-

DN20 HM103/10 HM103/8

-

HM103/7

-

Size

DN25 HM123/12 HM123/10

-

-

HM123/7

TI-S03-02

ST Issue 6

F

l

a

n

g

e

d

S

c

r

e

w

e

d

T

e

m

p

e

r

a

t

u

r

e

°

C

Page 1 of 4