Control Products UMTVS-BB User Manual

116

845.778.5566 ● Fax: [phone] ●

www.nicholsonsteamtrap.com

The UMTVS Big Block may be used in conjunction
with any two-bolt universal mount steam trap. It
combines a universal mount connector block with
isolation valves, strainer, blowdown valves and test
port to permit fast and easy testing, maintenance,
and repair or replacement of a universal mount
steam trap.

Integral Strainer and Blowdown Valve

The built-in strainer captures dirt and scale. The
blowdown valve at the bottom of the connector block
may be used periodically to clean out the strainer.

1st Inlet Isolation Valve (left)

Turning the first isolation valve to the off position
(clockwise) stops the flow before it reaches the
universal mount stream trap, strainer and
blowdown valve. If the first isolation valve is
opened (counter-clockwise) flow will be directed
through the strainer and blowdown valve ports and
to the universal mount steam trap.

Test port (on face)

Condensate exiting the universal mount steam trap
is directed to the test port. Fully open the test port
by loosening the larger test port valve located on
the face of the block (counter-clockwise). This will
provide a visual indication of the trap discharge
pattern to determine the steam trap functionality.

2nd Outlet Isolation Valve (right)

Turning the second isolation valve to the off
position (clockwise) stops the flow to the outlet
connection. The flow still may be exhausted
through any of the previously mentioned ports.
When the second isolation valve is open (counter­clockwise), flow to the outlet connection will
continue. Downstream backflow discharge may be
observed through the open test port by closing the
first Inlet Isolation Valve and blowdown valve and
opening the second Outlet Isolation Valve.

BIG BLOCK

UNIVERSAL MOUNT

TRAP VALVE STATION

Pressures to 1440 PSIG (99 bar)

Temperatures to 750°F (399°C)

Compact Size — Isolation valves, test ports, strainer

and blowdown valve combined in one “Big Block” for
easy installation.

Universal Mount — Universal two bolt swivel trap mount

installs permanently into system, simplifying installation
and removal of trap.

Highest Pressure and Temperature Ratings — Suitable

for virtually all applications.

All Stainless Steel — Body, internal wetted parts and

polished inner stem are durable and corrosion resistant.

Blowout Proof Isolation Valves — Feature grease

fittings to lubricate one way Teflon®seals and flush
contaminants. Protected from overtorque.

Adjustable Grafoil Packing — Simultaneously seals

stem and valve body.

Inner and Outer Valve Stems — Reduce wear.
Hardened 440 Stainless Steel Ball Tip — provides tight

seal and proper alignment.

High Capacity — All internal ports at least 1/4".

MODELS*

● UMTVS-BB

APPLICA TIONS

●

Unit Heaters

●Steam Tracing

●Drip Legs

●Heating

●Tire Presses

●Cooking Equipment

OPERA TION

●Laundry Equipment

●Plating Tanks

●Platent Presses

●Refinery

●Process

O

PTIONS

●

SW - Socketweld Connections

CODES

●

Designed per ASME B16.5, Class 600

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117

Connections: 1/2" & 3/4" NPT or Socketweld

BIG BLOCK

UNIVERSAL MOUNT

TRAP VALVE STATION

SPECIFICATION

Big Block Universal Mount Trap Valve Station shall be a universal
mount connector block with integral strainer, blow-down valve, test
ports, and dual isolation valves. Body shall be 304L stainless steel. It
shall be suitable for pressures to 1440 PSIG. End connections shall be
NPT or Socketweld and accommodate connection sizes of 1/2” and
3/4”. It shall function in any orientation. It shall accept universal mount
steam traps. The isolation valves shall be bonnetless and blowout
proof with a relubrication system.

MAXIMUM O

PERATING CONDITIONS*

Class 600 - 855 psi (59 barg) @ 750ºF (399ºC)

1440 psi (99 barg) @ 100ºF (170ºC)

MATERIALS OF CONSTRUCTION

Body ………………Investment Cast 304L Stainless Steel**
Blowdown Valve …………………………304 Stainless Steel
Strainer ………………………. 304 Stainless Steel .033 Perf
Test Port & Lock Nut………………………303 Stainless Steel
Internal Components …………………………Stainless Steel
External Seals…………………………………………… Teflon

®

Packing……………………………………………………Grafoil

* Per ASME B16.5, Class 600
** Per ASTM A351-CF

DIMENSIONS - INCHES (MM)

WEIGHT: 6 LBS. (2.7 KG)

67⁄16

(163)

41⁄

16

(104)

43⁄4

(121)

17⁄8

(47)

31⁄

8

(78)

INLET PORT

OUTLET
PORT